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Another bone of contention for the team concerns the boundary between the Cretaceous—the last age of the dinosaurs—and the Paleogene, the period that began 66 million years ago. Traditionally, Morgan says, the K-Pg boundary, as it is known, has been defined by appearance of fossils of small shelled creatures called foraminifera. By that definition, the team crossed the K-Pg boundary last week, at a depth of 620 meters, when drillers left fossil-containing limestone layers and entered sandy tsunami deposits. But Gulick points out that the tsunami deposits and impact breccia found between 620 and 670 meters all came after the impact itself, so they could technically be considered part of the Paleogene. He suggests that scientists instead call this thick section between the Cretaceous and Paleogene an “event layer.”Hildebrand vond een groenachtige bruine klei die een overmatige hoeveelheid iridium, geschokte kwartskorrels en kleine ronde klasten van verweerd glas bleek te bevatten. Hij en zijn begeleider William V. Boynton publiceerden de resultaten van het onderzoek. Ze suggereerden dat de tsunami die de lagen had gevormd het resultaat was van een inslag en dat de inslagkrater zich binnen een straal van 1000 kilometer zou moeten bevinden. From Mérida: Full-Day Tour to Uxmal and 4WD Driving starting from $68.6568.6 The Yucatán Peninsula comprises a significant proportion of the ancient Maya lowlands (although the Maya culture extended south of the Yucatán Peninsula, through present Guatemala and into Honduras and highland Chiapas), and was the center of the Mayan civilization.[6] There are many Maya archaeological sites throughout the peninsula; some of the better-known are Chichen Itza, Coba, Tulum and Uxmal.[15] Indigenous Maya and Mestizos of partial Maya descent make up a sizable portion of the region's population, and Mayan languages are widely spoken there.

Chicxulub Crater - About Chicxulu

  1. Dit bewijsmateriaal was afdoende om de geologische gemeenschap te overtuigen, en verdere studies hebben de consensus versterkt. Inmiddels zijn er aanwijzingen dat de daadwerkelijke krater 300 kilometer breed is, en dat de 180 kilometer-ring enkel een binnenste ring is.
  2. A fő bizonyíték a kráter becsapódási eredetére vonatkozóan a világszerte megtalálható K-T határban levő vékony agyagrétegben van. Az 1970-es évek végén Alvarezék és kollégáik bejelentették,[35] hogy nagy mennyiségű irídiumot tartalmaz. A rétegben az irídium szintje 0,006 mg/kg, miközben átlagos koncentrációja a földkéregben csak 0,0004 mg/kg.[36] A kondritok ebből az elemből 0,55 mg/kg-ot tartalmaznak.[36] A feltételezés szerint az irídium elterjedt a légkörben, amikor a becsapódó tárgy elporladt, majd szétterült a földfelszínen az aszteroidából származó egyéb anyagokkal együtt, létrehozva az irídiumban gazdag agyagréteget.[37] Ennek az agyagos rétegnek a tényleges egykorúságát azonban eddig még nem sikerült bizonyítani, az irídium pedig származhat más forrásokból is – például vulkanizmusból.
  3. Chicxulub Crater is an ancient impact crater buried underneath the Yucatan peninsula, with its center located approximately underneath the town of Chicxulub, Yucatan, Mexico. Investigations.
  4. ták szerepeltek, amelyekben a szokottnál több volt az irídium, sokkolt kvarcszemcséket és apró, tektitnek tűnő üveggyöngyöcskéket tartalmaztak.[12] A vastag, összekevert, érdes sziklatörmelékről azt feltételezték, hogy becsapódás keltette egy kilométer magas cunami sodorta magával, majd hagyta hátra egy másik helyen.[13] Ilyen lerakódásokat több helyről ismertek, de úgy tűnt, hogy a Karib-medencében koncentrálódnak, a K-T határ idejéről származó kőzetrétegben.[13] Így amikor Florentine Morás professzor Haitin olyan maradványokat fedezett fel, amelyeket egy vulkánkitörés nyomainak gondolt, Hildebrand felvetette, hogy egy közelben történt becsapódáshoz kötődhetnek.[14] A K-T határon gyűjtött
  5. t Frank Asaro által felállított elméletet, ami szerint a számos növény- és állatcsoport, köztük a dinoszauruszok kihalását egy bolida becsapódása okozhatta. Alvarezék, akik ekkoriban a Kaliforniai Egyetemen dolgoztak, kijelentették, hogy a kihalási esemény nagyjából egyidős a Chicxulub-kráter kialakulásának megállapított idejével.[32] Az elméletet a tudományos közösség széles körben elfogadta, általánosan azonban nem. Egyes kritikusok, köztük az őslénykutató Robert T. Bakker szerint egy ilyen becsapódás megölte volna a békákat is – többek között –, melyek túlélték a kihalási eseményt.[33] A Princeton Egyetem kutatója, Gerta Keller kijelentette, hogy a Chicxulubból származó újabb keletű mag
  6. The Pueblo of Chicxulub which supposedly is the center of the impact crater is in a flat plain typical of inland Yuncatan. No surfaace evidence of the meteor. in Chixculub Puerto (15 km away),in the city square school children have built small concrete models of dinosaurs supposedly destroyed by the meteor
Illustrated representation of chicxulub crater

Unique Facts about Mexico: Chicxulub Crate

Meteoritos / Meteorites: Janeiro 2015

Updated: Drilling of dinosaur-killing impact crater

Yucatán Peninsula - Wikipedi

This map displays all the various places that are popular on the Yucatan Peninsula. Starting in Quintana Roo and continuing through Yucatan state. Visit Mexico, there is lots to see and do Due to their distinctive features, study co-researcher Samuel Rennie suggest the existence of at least two morphologically diverse groups of people living separately in Mexico during the transition from Pleistocene to Holocene.[19] Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: community@space.com. The idea that a cosmic impact ended the age of dinosaurs in what is now Mexico now has fresh new support, researchers say. The most recent and most familiar mass extinction is the one that.

Spanish conquestedit

Yucatan Crater Linked To Mass Extinctions Of Dinosaurs Date: December 25, 2000 Source: University Of Texas, Austin Summary: Scientists at The University of Texas at Austin have presented a report. Besides this, Yucatan is also a home to the Chicxulub Crater and according to geologist this crater dates back to around 65 million years from Earth's collision with a meteorite and the extinction of the dinosaurs The impact created a crater where the Yucatan meets the Gulf of Mexico that was quickly refilled by a rush of seawater carrying bits of charcoal and other evidence telling a story of instantaneous. Due to the extreme karst nature of the whole peninsula, the northern half is devoid of rivers. Where lakes and swamps are present, the water is marshy and generally unpotable. Due to its coastal location, the whole of the peninsula is underlain by an extensive contiguous density stratified coastal aquifer, where a fresh water lens formed from meteoric water floats on top of intruding saline water from the coastal margins. The thousands of sinkholes known as cenotes throughout the region provide access to the groundwater system. The cenotes have long been relied on by ancient and contemporary Maya people.[6][22] Explore an array of Chicxulub, MX vacation rentals, including houses, apartment and condo rentals & more bookable online. Choose from more than 500 properties, ideal house rentals for families, groups and couples. Rent a whole home for your next weekend or holiday

WHAT IS A CENOTE. The cenotes of Yucatan are deep natural well scattered around the Yucatan Peninsula.. According to the latest data available, there must be around 6.000 in total. The Cenotes constitute one of the most important natural and touristic resources of the entire region, besides being of historical importance In a new paper in the October 2011 issue of Geophysical Journal International, Meschede et al. have combined a detailed 3-D model of the earth's interior and crustal structure with numerical calculations of the propagation of seismic waves around the earth after an impact.*** They model the impact as a single-force point source from the impact of a stony meteorite 20 km in diameter impacting. addition, the crater is a useful pr obe of the Earth, so material in Chicxulub can be used to determine the composition and structure of the continental crust that is represented by the Maya block. In this study, we will describe the impact lithologies recovered by CSDP and address items 4 and 5 The Chixculub crater was formed by the impact of a 200 KM diameter meteor 65.5 million years ago. The impact extinguished three quarters of life forms on earth millions of years ago. The structure of the crater is related to the current geological features of the Yucatan Peninsula, groundwater flows, cenotes, seawater intrusion, and much more

Chicxulub-Krater - Wikipedi

  1. The Chicxulub crater (Mayan: [tʃʼikʃuluɓ]) is an impact crater buried unnerneath the Yucatán Peninsula in Mexico. Its centre is locatit near the toun o Chicxulub, efter which the crater is named.. Reference
  2. That sprawling crater made 65.5 million years ago may hold the answers to many mysteries surrounding the space-rock event. Now, scientists plan to drill 5,000 feet (1,500 meters).
  3. De krater was decennialang onopgemerkt gebleven, doordat hij door 1000 meter jongere gesteenten verborgen werd. Aan het oppervlak is vandaag de dag niet veel te zien, op de ring van ondergrondse poelen (cenotes) na, die langs de heel oude kraterrand te vinden zijn. De krater werd uiteindelijk gevonden doordat door geologisch onderzoek onder andere afwijkingen in het zwaartekrachtsveld aan het licht kwamen.
  4. Um Rückschlüsse über die freigesetzte Energie des Meteoriteneinschlags zu gewinnen und den Aufprallwinkel sowie die Größe des Impaktors bestimmen zu können, mussten die Dimensionen und die Struktur des Kraters möglichst genau bekannt sein. Dies erforderte eine Vielzahl geophysikalischer Methoden wie Geomagnetik, Gravimetrie und Seismik. Während die erste Rekonstruktion des Chicxulub-Kraters vor allem anhand der Unterlagen von PEMEX erfolgte, konnten in den 1990er Jahren weitere geophysikalische Daten auf Grundlage der Landseismik durch das Institut für Geophysik der UNAM (Mexiko) gesammelt werden. Anfang 2005 wurden weitere seismische Messungen[12] an Bord der R/V Maurice Ewing im Golf von Mexiko durchgeführt und deren Ergebnisse anschließend auf wissenschaftlichen Tagungen und in der Fachliteratur präsentiert.

How the Dino-Killing Chicxulub Asteroid Impact Was Found

Archaeological findingsedit

Több, napjainkban felfedezett, az északi szélesség 20° és 70°-a között fekvő becsapódási kráter keletkezésének ideje hibahatáron belül megegyezik a Chicxulub-kráterével. Ilyen kisebb kráterek a Silverpit-kráter az Északi-tenger alatt[38] és a bovtiskai kráter Ukrajnában.[39] Mindkettő jóval kisebb a Chicxulubnál, de feltehetően mindkettőt több tíz méteres, földbe csapódó tárgyak hozták létre.[40] Ez vezetett ahhoz a feltételezéshez, ami szerint ezeket a krátereket egyetlen, a Föld felé vezető pályáján darabokra hullott égitest darabjai hozták létre, melyek közel egyidőben csapódtak be.[41] Az India partjainál, az óceánban levő Siva-kráter valószínűleg szintén ekkoriban jött létre, de a becsapódási eredetét még nem bizonyították minden kétséget kizáróan.[42] Carnival does not offer any alternatives from the established shore excursion program. All shore excursions sold through Carnival are coordinated with reputable tour operators and include all of the most popular sites of interest. One of the many benefits of booking excursions through Carnival is a guarantee that the ship will remain in port. Yucatán has approximately 2,600 fresh water pools called cenotes, which the indigenous natives used for drinking water and sacrificial offerings. Today, the pools are popular tourist attractions Specs: Now greatly eroded, the Kara crater is a non-exposed impact structure in Russia. Some have claimed that the impact structure actually consists of two adjacent craters: the Kara and the Ust. The space rock hit the shallow water in the Peninsula. The model ran what happened in the 10 minutes after impact. At that point, no water had entered the crater, due to the size and scope of the.

"A few people have said the crater was the wrong age, but I think these new findings very strongly settle that question," Alvarez said. Yucatán, estado (state), southeastern Mexico. Occupying part of the northern Yucatán Peninsula, it is bounded to the north by the Gulf of Mexico, to the east and southeast by the state of Quintana Roo, and to the southwest and west by the state of Campeche. The state capital and chief commercia Discovering the Impact Site. These findings led to an extensive search for a large impact crater that is 65 million years old. Seven North American researchers finally located the impact site on the Yucatán Peninsula. The key to that success was a discovery in Haiti of an unusually thick sequence of impact ejecta A becsapódó test átmérője mintegy 10 kilométer lehetett. A becsapódás a becslések szerint 400 zettajoule (4×1023 joule) energiát szabadíthatott fel, ami 100 teratonna TNT felrobbanása keltette energiának felel meg. Összehasonlításképp: az ember által kifejlesztett legnagyobb hatóerejű atomfegyver, a Cár-bomba detonációja 50 megatonna erejű volt, a chicxulubi becsapódás energiája azonban ezt kétmilliószor haladta meg.[17] Még a legnagyobb ismert vulkánkitörés energiája is eltörpül emellett: a La Garita Kalderát létrehozó kitörés 10 zettajoule energiát szabadított fel.[18] Verdere studies van gearchiveerde boorkernen konden de kwestie opgelost hebben, maar de meeste daarvan waren in een pakhuisbrand in 1979 verloren gegaan. Penfield vloog hierna naar Yucatán om te zien of hij iets van de boringen te weten kon komen. Dit liep op niets uit.

The Chicxulub Crater Reveals Details About a Killer

The Yucatán Peninsula (/ˌjuːkəˈtɑːn/,[1] also UK: /ˌjʊk-/,[2] US: /-ˈtæn, ˌjuːkɑːˈtɑːn/;[1][3][4] Spanish: Península de Yucatán), in southeastern Mexico, separates the Caribbean Sea from the Gulf of Mexico, with the northern coastline on the Yucatán Channel. The peninsula lies east of the Isthmus of Tehuantepec, a northeastern geographic partition separating the region of Central America from the rest of North America. It is approximately 181,000 km2 (70,000 sq mi) in area, and is almost entirely composed of limestone.[5][6] The Chicxulub crater is the only well-preserved peak-ring crater on Earth and linked to the Cretaceous-Tertiary mass extinction, an event 65 million years ago that wiped out the dinosaurs as well. Meteor Crater is the spectacular result of a collision that rocked the American Southwest approximately 50,000 years ago with the energy of more than 20 million tons of TNT. Situated under the wide skies of the Arizona High Desert, Meteor Crater offers an interactive educational experience for the entire family in a beautiful, natural setting

A Pemex továbbra sem engedélyezte a vizsgálatok adatainak nyilvánosságra hozását, de megengedte, hogy Penfield és a cég egy munkatársa, Antonio Camargo 1981-ben ismertessék a felfedezést a Society of Exploration Geophysicists (Kutató Geofizikusok Társasága) konferenciáján.[10] Ebben az évben kevesen vettek részt a konferencián – ironikus módon a becsapódási események és a K-T határ sok szakértője éppen ekkor egy másik konferencián volt – és a jelentés sem váltott ki nagy visszhangot. Penfieldnek rengeteg geofizikai adat állt rendelkezésére, de kőzetmintái és a becsapódást bizonyító egyéb kézzelfogható bizonyítékai nem voltak.[7] The Chicxulub crater / ˈ tʃ iː k ʃ ʊ l uː b / (Mayan: [tʃʼikʃuluɓ]) is an impact crater buried underneath the Yucatán Peninsula in Mexico. Its center is located near the town of Chicxulub, after which the crater is named. It was formed when a large asteroid or comet about 11 to 81 kilometers (6.8 to 50.3 miles) in diameter, known as the Chicxulub impactor, struck the Earth

Chicxulubkrater - Wikipedi

Beneath the tropical Gulf of Mexico, near the Yucatan Peninsula, lurks the crater known as Chicxulub. This indent in the Earth is the tombstone of the rock most famous for killing off the dinosaurs The drilling effort began at the beginning of April and is sponsored by the International Ocean Discovery Program (IODP). To avoid choppy ocean waters, the scientists are using a special vessel called a lift boat that has jacked itself up off the sea floor on three pylons. Morgan, who just arrived on the drilling platform over the weekend, says the mission is the culmination of years of effort that began with her first proposal to IODP in 1998. “I had this dream we would drill this impact crater many years ago,” she says. “To see this immense structure and all the people here, it’s been really amazing.”

Chicxulub-kráter - Wikipédi

  1. Die Verfasser einer 2017 publizierten Studie weisen darauf hin, dass der Chicxulub-Asteroid in Gesteinsschichten mit hohen Konzentrationen an Kohlenwasserstoff und Schwefel einschlug. Durch die großflächige Erhitzung und Verdampfung der ozeanischen Sedimente in dieser Region verteilten sich umfangreiche Mengen an Ruß- und Sulfataerosolen in der Stratosphäre, wodurch sich die klimatischen Auswirkungen des folgenden Impaktwinters erheblich verstärkten. Hätte der Asteroid ein Gebiet mit geringeren Kohlenwasserstoff-Anteilen getroffen (etwa 87 Prozent der Erdoberfläche), wäre die biologische Krise wahrscheinlich glimpflicher verlaufen, mit einer deutlich höheren Überlebensrate der mesozoischen Fauna.[36]
  2. A krátert Glen Penfield geofizikus fedezte fel, miközben kőolaj után kutatott a Yucatánon, az 1970-es évek végén. A becsapódásról a kráterben talált sokkolt kvarc és a közelében található tektitek mellett a területen tapasztalható gravitációs anomália tanúskodik. Az izotópanalízis alapján a becsapódásra a kréta időszak végén, durván 65,5 millió évvel ezelőtt kerülhetett sor. Mivel ez nagyjából egybeesik az úgynevezett K-T határral, sok tudós szerint a becsapódás lehetett a dinoszauruszok kihalásaként ismert kréta-tercier esemény fő oka, ám vannak akik szerint a Föld élővilágának pusztulásában más tényezők is közrejátszottak,[4] illetve vannak akik azt feltételezik, hogy több, ebben az időszakban történt becsapódás egyike lehetett. Az újabb keletű bizonyítékok arra utalnak, hogy a becsapódó tárgy egy olyan nagyobb aszteroida darabja volt, amely 160 millió évvel ezelőtt töredezett szét, egy a bolygótól távol bekövetkezett ütközés során.[5]
  3. In de Krijt-Tertiairovergang verdwenen plotseling vrijwel alle grotere dieren, zoals de dinosauriërs. Volgens een theorie die zowel Jan Smit[1][2] als Luis en Walter Alvarez[3] in 1980 publiceerden, was de sterfte het gevolg van een grote planetoïdeinslag. Hoewel deze theorie aanvankelijk gedurfd was, vond men in de jaren daarna allerlei aanwijzingen dat er daadwerkelijk een inslag was geweest, en de krater van Chicxulub is daarvoor de beste kandidaat.
  4. Published Sept. 10, 2019Updated Oct. 1, 2019. Leer en español. The giant asteroid's impact into shallow waters in the Gulf of Mexico 66 million years ago was bad enough. But then an amalgam of.
  5. The Yucatan Peninsula is a significant area for ancient Mayan culture as there are many different Mayan archaeological sites in the region. The most famous of these include Chichen Itza and Uxmal. Today's Yucatan Peninsula is still home to native Maya people as well as people of Mayan descent
Cenote Swimming and Snorkeling | Tropix Traveler

Chicxulub-Krater Die größten Einschlagkrater der Welt

  1. A Yucatán-félsziget Közép-Amerikában, Mexikó délkeleti részén elhelyezkedő földnyelv, amely a Karib-tengert (a Hondurasi-öbölt) választja el a Mexikói-öböltől.Az ország 15 földrajzi nagytájának egyike. Legészakibb pontja a Catoche-fok (Cabo Catoche). Gyakran sújtják hurrikánok.. Itt volt a maja civilizáció központja. Olyan maja városromokat csodálhatunk itt meg.
  2. The Chicxulub Crater . Chicxulub Crater is an ancient impact crater buried underneath the Yucatan peninsula, with its center located approximately underneath the town of Chicxulub, Yucatán, Mexico. Later investigations suggested that this impact structure is dated from the late Cretaceous, about 65 million years ago
  3. The Yucatan Congress approved the reform to prohibit the use of images of dead people, as well as human remains Merida airport implements health protocol in response to risk of Coronavirus.
  4. Muchos de quienes se bañan en los populares cenotes que salpican la península de Yucatán desconocen que este fenómeno geológico es el resultado de un acontecimiento único en la Tierra que.

What Happened the Day a Giant, Dinosaur-Killing Asteroid

The team of scientists living on board the drilling platform is now investigating the fractures and veins of minerals that precipitated out of hot solutions in the wake of the impact. Some of the minerals they’ve found suggest that, initially at least, the fluid-filled cracks were way too hot for life. But they are hoping to find signs of ancient and modern DNA. As hellish as the impact was, the team suspects that the buried peak ring itself may have been an early place for life to return, because of the nutrients in the hot fluid-filled fractures. 37. Chicxulub, Yucatán, Mexico . The Chicxulub structure is not exposed on the surface; thus, only geophysical images give evidence of its presence and extent Our Photographer-in-residence, Max Alexander heads to the Yucatán Peninsula in Mexico to cover the drilling of the Chicxulub crater exclusively for Asteroid Day. Follow Max's journey right here on our blog. We will post his photos along with videos and daily updates. You can request more information and high resolution images by Emailing us

Redefining the Face Of Beauty : TOP 10 PLACES TO VISIT IN

Chicxulub crater, Mexico Britannic

The Yucatan Peninsula is famous for being the ground zero of the end of the time of the dinosaurs. The impact left behind a sizeable crater, but it also created the Ring of Cenotes, a life-rich. As of 1 May, the team has reached a depth of 700 meters. It is funded to drill through the first week of June, and hopes to go as deep as 1500 meters. As the researchers move deeper into the harder granites of the peak ring, they will core more slowly, obtaining a 3-meter core about every 2 hours. They will look for evidence that the peak ring rocks are flipped “out of order,” with deeper rocks lying on top of rocks that originally sat more shallowly and contain minerals with higher levels of shocking. This would confirm one of the main models for peak ring formation. The crater impact ended the reign of the dinosaurs and wiped out 76 percent of species on Earth 66 million years ago. But the researchers have determined that sea life returned less than a decade after the impact, and a thriving ecosystem was in place within 30,000 years

Chicxulub Crater - Mexico - Atlas Obscur

The peninsula comprises the Mexican states of Yucatán, Campeche, and Quintana Roo, as well as large parts of Belize and Guatemala's Petén Department.[20] Located in the northern part of the Yucatan Peninsula, Merida, Mexico is the capital of the state of Yucatan. At 331 square miles, Merida is the largest city in Yucatan and boasts a population of approximately 970,000. Merida is considered the cultural capital of the Yucatan

Terrestrische Einschlagskrater: Zeugen kosmischer Katastrophen

Though the buried giant can't be seen, the impact crater has left subtle clues of its existence on the surface. When I talk to school children, I describe it like this, says Dr. Gary Kinsland, a geology professor at the University of Louisiana at Lafayette who has been doing research on Chicxulub since 1994 Dropping into earth's atmosphere burning hot and bright, brighter than a million suns, this meteor impacted the earth in the shallow waters of mexico causing what we call the Yucatan crater The Chicxulub crater is an impact crater buried underneath the Yucatán Peninsula in Mexico. Its center is located near the town of Chicxulub, after which the crater is named. It was formed by a large asteroid or comet about 11 to 81 kilometers in diameter, the Chicxulub impactor, striking the Earth the Cretaceous - Tertiary boundary. Gravity measurements over the Chicxulub crater. Regional Bouguer gravity anomaly map showing most of the Yucatán peninsula (North is up.). The outline of the peninsula is indicated by a thin dark line. Colour indicates the value of the gravity anomaly - warm colours (purple and red) represent gravity highs.

New findings published in the journal Geology last week revealed that cyanobacteria — blue-green algae responsible for harmful toxic blooms — moved into the crater a few years after the impact Von der folgenden biologischen Krise waren die ozeanischen und festländischen Biotope gleichermaßen betroffen. Im Verlauf eines nicht genau zu definierenden Zeitraums starben außer den Dinosauriern und der in den Ozeanen heimischen Megafauna auch die Ammoniten, fast alle kalkschalenbildenden Foraminiferen sowie die meisten Vogelarten aus.[32] Nach einer vermutlich mehrere Jahrzehnte dauernden Kältephase begann eine rasche, zu Hitzestress führende Erwärmung mit einer Dauer von ungefähr 50.000 Jahren, bedingt durch Milliarden Tonnen Kohlenstoffdioxid, die der Einschlag infolge der Verdampfung ozeanischer Böden innerhalb von Sekunden freigesetzt hatte, zu einem größeren Teil verursacht von den massiv erhöhten CO2-Ausgasungen des Dekkan-Trapps, möglicherweise initiiert von den tektonischen Erschütterungen des Asteroideneinschlags.[33] Diese Annahme steht im Einklang mit der relativ neuen Hypothese, dass aufgrund der Impaktenergie von 3×1023 Joule (nach einer anderen Berechnung 1×1024 Joule) und der dadurch ausgelösten tektonischen Schockwellen der lange „schwelende“ Dekkan-Trapp eine erhebliche Zunahme seiner Aktivität verzeichnete. Laut den entsprechenden Studien ist der geologisch kurzfristige, über Jahrtausende in das Paläogen reichende Ausstoß von 70 Prozent aller Dekkan-Trapp-Flutbasalte auf den Chicxulub-Einschlag zurückzuführen.[34][35] Yucatán (Yucateeks Maya: Uuyut'aan of Uluumil Cutz Yetel Ceh) is een van de 31 staten van Mexico, gelegen op het noordelijke deel van het gelijknamige schiereiland.Yucatán grenst aan Quintana Roo in het oosten, aan Campeche in het westen en aan de Golf van Mexico en de Straat Yucatan in het noorden. Yucatán heeft een oppervlakte van 38.402 km² en 1.658.210 inwoners () Chicxulub crater. Map showing the location of the Chicxulub impact crater (center) on the Yucatan Peninsula, Mexico. This impact may have caused the extinction of the dinosaurs and 70% of all Earth's species 65 million years ago

Space is part of Future US Inc, an international media group and leading digital publisher. Visit our corporate site. #N#65 million years ago, a massive asteroid crashed into Mexico's Yucatan Peninsula — a site now known as the Chicxulub Crater. This cataclysmic event that triggered a world-wide tsunami and disrupted global climates has been linked to the extinction of the dinosaurs and up to 75% of all other life. A newly published study of rock samples. The Chicxulub crater is a very big crater.Some scientists believe that the Chicxulub crater was made by the meteor that caused the extinction of the dinosaurs, and many other animals.It is near the Yucatán Peninsula in Mexico.. The Chicxulub crater is more than 180 km (110 mi) in diameter, making it the third largest confirmed impact crater.The bolide which formed the crater was at least 10.

Er waren in het Caraïbisch gebied echter geen kraters bekend. Hildebrand en Boynton maakten hun bevindingen bekend op een internationaal geologische conferentie waar ze veel belangstelling trokken. Carlos Byars, een journalist van de Houston Chronicle, nam contact op met Hildebrand en vertelde hem dat een geofysicus genaamd Glen Penfield in 1978 in de noordelijke punt van Yucatán iets had ontdekt dat wellicht de krater zou kunnen zijn. The Arrowsmith Bank is a submerged bank located off the northeastern end of the peninsula.[21] "I've been involved in a lot of research that's explored huge correlations between mass extinctions and massive volcanism, not impacts, so I've really come at the idea of a cosmic impact from the outside," Renne said.Short and tall tropical jungles are the predominant natural vegetation types of the Yucatán Peninsula. The boundaries between northern Guatemala (El Petén), Mexico (Campeche and Quintana Roo), and western Belize are still occupied by the largest continuous tracts of tropical rainforest in Central America. However, these forests are suffering extensive deforestation.[2] A becsapódás a Föld történetének legnagyobb feltételezett, több száz méteres magasságú óriáscunamijait hozta létre. A felizzott por, hamu és gőz hatalmas mennyiségben szökött a magasba, amikor a tárgy a másodperc törtrésze alatt eltemetődött a talajban.[19] A kilökődött anyag a tárgy darabjaival együtt visszahullva az atmoszférában felizzott, és a földfelszínre hullva felhevítette a talajt és globális tüzeket okozhatott; miközben az ütközés keltette lökéshullámok földrengésekhez és vulkánkitörésekhez vezettek.[20] A visszahullott por és füst évekre vagy akár egy évtizedre is beboríthatta a földfelszínt, mostoha körülményeket teremtve az élőlények számára. Az ütközés energiája által a kőzetekből felszabadított nagy mennyiségű szén-dioxid drámai üvegházhatást hozhatott létre.[21] A közvetlen következmény azonban az lehetett, hogy az atmoszférába került por miatt a napfény nem érhette el a földfelszínt, amely emiatt jelentősen lehűlt. A növényi fotoszintézis megszakadhatott, jelentős hatást gyakorolva az egész táplálékláncra.[22][23]

Strong storms called nortes can quickly descend on the Yucatán Peninsula any time of year. Although these storms pummel the area with heavy rains and high winds, they tend to be short-lived, clearing after about an hour. The average percentage of days with rain per month ranges from a monthly low of 7% in April to a high of 25% in October. Breezes can have a cooling effect, humidity is generally high, particularly in the remaining rainforest areas.[23] Chicxulub crater The Chicxulub crater is an impact crater buried underneath the Yucatán Peninsula in Mexico.Its center is located near the town of Chicxulub, after which the crater is named Space Radar Image of the Yucatan Impact Crater Site This is a radar image of the southwest portion of the buried Chicxulub impact crater in the Yucatan Peninsula, Mexico. The radar image was acquired on orbit 81 of space shuttle Endeavour on April 14, 1994 by the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) However, Renne and his colleagues have now discovered the Chicxulubimpact and the end-Cretaceous mass extinction event happened no more than 33,000 years apart. These new findings, appearing in the Feb. 8 issue of the journal Science, support the idea that the extraterrestrial collision dealt the age of dinosaurs its death blow.

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1991-es cikkükben Hildebrand, Penfield és társaik leírták a becsapódási hely geológiáját és összetételét.[25] A becsapódás feletti kőzetek majdnem 1000 méter vastag márga és mészkő rétegek.[25] Ezek korát a paleocén idejére datálták.[26] A rétegek alatt több mint 500 méter vastagon andezit üveg és breccsa található. Ezek az andezittartalmú magmás kőzetek csak a hasonló, feltételezett becsapódási helyekre jellemzőek; szokványos módon a nagy mennyiségű földpát és augit is csak a becsapódástól megolvadt kőzetekben fordul elő,[27] a sokkolt kvarchoz hasonlóan.[26] A K-T határ a területen belül 600 és 1100 méter közötti mélységben helyezkedik el normális esetben, a térségtől 5 kilométerre pedig 500 méter mélyen.[28] A kráter éle mellett cenoték (víznyelők) csoportjai találhatók, ami arra utal, hogy a hely a harmadidőszakban, a becsapódás után víz alatti medence volt.[28] A medence talajvize feloldotta a mészkövet, létrehozva a barlangokat és a cenotékat a felszín alatt.[29] A cikk emellett megjegyzi, hogy a kráter megfelelő forrásnak tűnik a Haitin talált tektitek számára.[30] The main culprit behind the end of the dinosaurs is now widely accepted to be an extraterrestrial collision of epic proportions, one that left behind the gargantuan crater of Chicxulub at Mexico. Evidence for this theory grows more ironclad over time –  yet only 30 years ago it was often thought to be nonsense.

Dit onderzoek was overtuigend, en ontving een belangrijke stimulans toen een team van onderzoekers uit Californië, waaronder Kevin O. Pope, Adriana C. Ocampo, en Charles E. Duller, satellietanalyse van het gebied uitvoerde. Zij vonden een bijna perfecte ring van cenotes met in het centrum Chicxulub die overeenkwam met de ring die Penfield had gevonden. De cenotes waren waarschijnlijk door bezinksel van de kraterwand ontstaan. To show once and for all that the Chicxulub impact caused the KTB mass extinction. The 2001-2002 drilling of the Chicxulub crater core Yaxcopoil-1 by DOSECC (Drilling, Observations and Sampling of the Earth's Continental Crust) was supposed to resolve the age issue and show once and for all that Chicxulub is the KTB impact that caused the mass extinction (Dressler et al., 2003) The proper derivation of the word Yucatán is widely debated. 17th century Franciscan historian Diego López de Cogolludo offers two theories in particular.[7] In the first one, Francisco Hernández de Córdoba, having first arrived to the peninsula in 1517, inquired the name of a certain settlement and the response in Yucatec Mayan was "I don't understand", which sounded like yucatán to the Spaniards.[7][8] There are many possibilities of what the natives could have actually said, among which "mathan cauyi athán", "tectecán", "ma'anaatik ka t'ann" and "ci u t'ann".[7][8][9] This origin story was first told by Hernán Cortés in his letters to Charles V.[10][11][12] Later 16th century historians Motolinia and Francisco López de Gómara also repeat this version.[12] In some versions the expedition isn't the one captained by Córdoba but instead the one a year later captained by Juan de Grijalva.[13] The second major theory is that the name is in some way related to the yuca crop, as written by Bernal Díaz del Castillo.[7][12] Others theories claim that it is a derivative of Chontal Tabascan word yokat'an meaning speaker of the Yoko ochoco language, or an incorrect Nahuatl term yokatlan as supposedly "place of richness" (yohcāuh can't be paired with tlán).[12] The Chicxulub impact in Mexico has been linked to the mass extinction of species at the end of the Cretaceous period. From seismic data collected across the offshore portion of the impact crater.

Il cratere di Chicxulub è un antico cratere da impatto sepolto sotto la penisola dello Yucatán, con il suo centro localizzato approssimativamente vicino al paese di Chicxulub, nel Messico.Le ricerche suggeriscono che questa struttura d'impatto possa datarsi a circa 65,95 milioni di anni fa, durante il passaggio tra il periodo Cretaceo e quello detto Paleogene Hoewel de wetenschap nu steeds meer te weten is gekomen over de inslag, kan nog steeds niet definitief worden vastgesteld wat de oorzaak van de grote wereldwijde sterfte is geweest. De afgelopen jaren neigt men steeds meer naar een groot inferno-scenario. Toen het projectiel zich met een enorme vaart in de aardkorst boorde, schat men dat er dusdanig veel energie moet zijn vrijgekomen dat grote hoeveelheden rotsblokken omhoog moeten zijn geslingerd. Men schat tot een kilometer of 100 hoog, niet genoeg om de baan vast te houden. Die zeitliche Übereinstimmung der Iridium-Anomalie mit dem Aussterbeereignis an der K-P-Grenze war der Kernpunkt der Alvarez-Studie von 1980. Das Szenario erforderte einen Impaktkörper von etwa 10 bis 15 km Durchmesser, dessen schlagartig freigesetzte kinetische Energie eine weltweite Welle der Zerstörung auslöste, der etwa 70 bis 75 Prozent aller damaligen Arten zum Opfer fielen. Mit dem Chicxulub-Einschlag als „Global Killer“ schien die Ursache für das Verschwinden der Dinosaurier und vieler anderer Lebensformen gefunden worden zu sein. Crater drilling shows ocean level has risen. The Chicxulub Crater was created by an asteroid or comet at least 10 kilometers in diameter 66 million years ago. The center of the crater, which.

La historia del meteorito que causó una extinción masiva cuando los humanos aún no habitábamos el planeta es por todos conocida. Pocos saben, sin embargo, que este meteorito gigante (de 10 kilómetros de diámetro) se estrelló en la Península de Yucatán, México.. A una velocidad de 250 mil kilómetros por hora, el meteorito atravesó la atmósfera hace unos 66 millones de años "There were huge volcanic eruptions at the Deccan Flats to have taken place over a period of something like a half-million years about when the mass extinction did, so volcanism may have something to do with it as well," Alvarez said.Throughout the '80s and '90s, different lines of investigation accumulated evidence that an extraterrestrial impact really did kill off dinosaurs.

Scientists drill the Chicxulub crater site in April and May 2016. Photo: IODP. Months after drilling into the Chicxulub dinosaur crater site off Progreso, scientists have obtained remarkable new insights, with more to come. Scientists report they can see evidence of how life returned to the scene soon after the calamity 66 million years. Dinosaurs ruled the planet for a staggering 135 million years. Their age came to a dramatic end about 65 million years ago in the most recent and most familiar mass extinction — the end-Cretaceous or Cretaceous-Tertiary extinction event, often known as the K-T boundary. But the Chicxulub asteroid impact scenario was not immediately accepted when it was proposed.According to study lead researcher Wolfgang Stinnesbeck, "It really looks as if this woman had a very hard time and an extremely unhappy end of her life. Obviously, this is speculative, but given the traumas and the pathological deformations on her skull, it appears a likely scenario that she may have been expelled from her group and was killed in the cave, or was left in the cave to die there”.[17] All diesen Sedimenten ist gemeinsam, dass sie, ebenso wie die Kratergesteine und die global nachweisbare Kreide-Paläogen-Grenzschicht, als Kurzzeitphänomene zu den so genannten Eventablagerungen zählen, wie sie innerhalb von Monaten, Tagen, Stunden oder sogar Minuten nach einem Impakt entstehen. Diese zeitlichen Größenordnungen liegen jenseits des herkömmlichen stratigraphischen und radiometrischen Auflösungsvermögens, sind jedoch zunehmend Forschungsgegenstand einer noch jungen wissenschaftlichen Disziplin, der Eventstratigraphie.

Dinosaur asteroid hit 'worst possible place' - BBC New

The Yucatan is a plateau composed mostly of limestone and is an area of very low relief with elevations varying by less than a few hundred meters (about 500 feet.) In this computer-enhanced image the topography has been greatly exaggerated to highlight a semicircular trough, the darker green arcing line at the upper left corner of the peninsula UPDATE: Today, scientists published their first results from a drilling expedition into Chicxulub crater, the buried remnants of an asteroid impact off the Yucatán Peninsula in Mexico that killed off the dinosaurs 66 million years ago. Their discovery of shocked, granite rocks from deep in the crust placed “out of order” on top of sedimentary rocks validates the dynamic collapse theory of formation for Chicxulub’s peak ring, the scientists says. Chicxulub is the only well-preserved crater on Earth with a peak ring, but they abound elsewhere in the inner solar system. Last month, scientists using instruments on a NASA lunar mission showed that the peak rings within the Orientale impact basin were likely to have formed in a similar way as at Chicxulub.  Chicxulubský kráter [čikšulubský] je obrovský, částečně pod zemí dochovaný impaktní kráter, který vznikl po dopadu (impaktu) velkého asteroidu Chicxulub.Tento meteorit o průměru kolem 10 kilometrů dopadl asi před 66 miliony let do oblasti dnešního poloostrova Yucatán v Mexickém zálivu.Samotný kráter je široký zhruba 180 - 200 kilometrů, z větší části je dnes. Future research can drill right into the heart of the crater "to study the process of what happens when you have an extremely large impact on Earth," Gulick said. "Maybe we can learn more about how this particular impact helped result in the extinction of 75 percent of all species on Earth." Chicxulub Puerto es una localidad del estado de Yucatán, en el litoral del golfo de México, comisaría del municipio de Progreso.Población costera pequeña de aproximadamente 5000 habitantes (a la fecha) que tienen como actividades principales la pesca, el comercio y el turismo

A Chicxulub-kráter (ejtsd: tʃikʃuˈlub) egy óriási, ősi becsapódási kráter, melynek nyomai a mexikói Yucatán-félszigeten, illetve annak közelében, a tengeraljzaton maradtak fenn. 170 kilométeres átmérőjével az ismert becsapódási kráterek közül a közepes méretűek közé tartozik. Középpontja a mexikói Chicxulub városka közelében van, melyről a nevét kapta (a. Chicxulub Crater (Google Maps). Site of the huge impact that is widely believed to have triggered the mass extinction which ended the age of the dinosaurs. Most of the crater has been covered by sediments, but a section of the southern rim is just visible - see Wikipedia link for more information 2008 februárjában az austini Texasi Egyetemhez tartozó Jackson School of Geosciences Sean Gulick által vezetett kutatócsoportja a kráterről készült szeizmikus képeket használta fel annak eldöntésére, hogy a becsapódó tárgy mélyebb vízbe zuhant-e, mint ahogy azt korábban gondolták. Kijelentették, hogy ez megnövelhette a légkörbe jutó szulfát aeroszolok mennyiségét. A sajtóban megjelent hír szerint ez „kétféle módon is halálosabbá tehette a becsapódást: az éghajlat megváltoztatásával (a légkör felső részébe jutó szulfát aeroszolok lehűlést okozhattak) és a savas esők révén (a vízpára elősegíti, hogy a légkör alsó részébe jutó szulfát aeroszolok savas esőt okozzanak)”.[24] Acraman Crater. Located in Australia, the significant impact the meteor creating Acraman Crater left was forming Lake Acraman, which is a dry-salt lake that appears white from space

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cenotes & the chicxulub crater One of the most striking features of the Yucatan's geology is that there are lots of cenotes -- easily seen when you fly over the land. A cenote is a natural hole in limestone bedrock -- a sinkhole -- with water at the bottom of it The peak ring formed in a matter of minutes. Just after the impact, deep granite bedrock, flowing like a liquid, rebounded into a central tower as tall as 10 kilometers before collapsing into the circular ridge. Next, the peak ring was covered by a layer of jumbled-up rocks, called a breccia, that contains chunks of blasted-up rock and impact melt. Then, in the hours that followed, ocean tsunamis dumped huge amounts of sandy sediment in the giant hole in Earth. Further deposition would come slowly, as life returned to the seas, and layers of limestone were built up in the ensuing millions of years.The Yucatán Peninsula is the site of the Chicxulub crater impact, which was created 66 million years ago by an asteroid of about 10 to 15 kilometres (6 to 9 miles) in diameter at the end of the Cretaceous Period.[14] Nadat Hildebrand in contact met Penfield kwam, konden de twee echter van twee afzonderlijke monsters uit de putten die door PEMEX in 1951 waren geboord de plaats bepalen. Analyse van de monsters toonden duidelijk sporen van inslagmetamorfose. Studies door andere geologen van het puin dat in Haïti in Beloc werd gevonden toonden ook duidelijk aan dat het het product van een inslag moest zijn. Few Mexican destinations can dazzle you with ancient Maya ruins, azure Caribbean and Gulf of Mexico waters and colonial cities all in one fell swoop. Actually, there's only one - the Yucatán Peninsula. The peninsula comprises parts of Belize and Guatemala, as well as three separate Mexican states: Yucatán, Quintana Roo and Campeche

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This shaded relief image of Mexico's Yucatan Peninsula show a subtle, but unmistakable, indication of the Chicxulub impact crater. Most scientists now agree that this impact was the cause of the Cretatious-Tertiary Extinction, the event 65 million years ago that marked the sudden extinction of the dinosaurs as well as the majority of life then on Earth The Chicxulub crater was formed 66 million years ago when a 10-kilometre-wide asteroid or comet ploughed into the ocean near what is now Mexico's Yucatan Peninsula

The notion that a cosmic impact from an asteroid or comet triggered this mass extinction began with the discovery of a layer of clay enriched with iridium. This metal is rare on Earth's surface but relatively common in space rocks. Given this "iridium anomaly," the father-son duo of Luis and Walter Alvarez, along with Frank Asaro and Helen Michel, proposed in 1980 that an extraterrestrial collision finished the age of dinosaurs. The elder Alvarez was a Nobel Prize-winning physicist; Asaro and Michel are nuclear chemists. The Chicxulub crater is a crater buried underneath the Yucatán Peninsula in Mexico. Though the crater is the largest confirmed impact crater on Earth it has since been completely buried. The animation on the right overlays the current land mass of theYucatán Peninsula over a gravity map of the impact crater Like much of the Caribbean, the peninsula lies within the Atlantic Hurricane Belt, and with its almost uniformly flat terrain it is vulnerable to these large storms coming from the east. The 2005 Atlantic Hurricane Season was a particularly bad season for Mexico's tourism industry, with two forceful category 5 storms hitting, Hurricane Emily and Hurricane Wilma. The 2006 Atlantic Hurricane Season was a typical year which left the Yucatán untouched, but in the 2007 Atlantic Hurricane season Yucatán was hit by Hurricane Dean (also a category 5 storm), nevertheless Dean left little damage on the peninsula despite heavy localized flooding. 1996-ban kaliforniai kutatók, köztük Kevin Pope, Adriana Ocampo és Charles Duller a Yucatán műholdas képeit tanulmányozva víznyelő (cenote) gyűrűire bukkantak a Chicxulub közepén, ott, ahol Penfield a földalatti ívet találta. Ezeket a becsapódási kráter falának beroskadása hozhatta létre. A későbbi bizonyítékok azt sugallták, hogy a kráter valós átmérője a 300 kilométert is elérhette, és a Penfield által talált gyűrű csak egy belső fala volt.[16]

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Video: Einschlagkrater - Wikipedi

The Yucatán Peninsula is a region of southeastern Mexico, consisting of the Mexican states of Yucatán, Campeche, and Quintana Roo.. The Yucatán was the home of the Maya civilization before it was conquered by the Spanish Conquistadors in the 16th century. Much of the population is part or all of Maya descent, and in many places the Mayan language is still spoken, usually in addition to. A giant meteor that struck the Yucatán Peninsula 66 million years ago is the leading explanation for the demise of the dinosaurs. Illustration by Mark Garlick, Science Photo Library/Alamy. Only.

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El cráter fue un hallazgo accidental a mediados de 1980. Fue descubierto por un grupo de arqueólogos estadounidenses que estudiaban a la civilización Maya a través de imágenes satelitales. Desde entonces científicos de América, Europa y Asia trabajan para descubrir los secretos que guarda esta depresión.. Estos estudios revelan que el impacto de este meteoro de 12 km de ancho fue de. Science’s extensive COVID-19 coverage is free to all readers. To support our nonprofit science journalism, please make a tax-deductible gift today.In any case, "we now have a completely different view of how the Earth works in terms of gradual changes versus catastrophic changes," Alvarez said. "I think in 1980, the general view was that all changes in Earth's past were gradual, and that if you were thinking about catastrophic ones, you were not being catastrophic. I still think that most changes in Earth's history were gradual, but when good strong evidence comes for a catastrophic event, we'll now accept it."

Cráter de Chicxulub - Wikipedia, la enciclopedia libr

2006-ban Ken MacLeod a Missouri-Columbia Egyetem geológiaprofesszora az egyszeres becsapódási elmélet bizonyítására elemezte az óceánaljzatról származó üledékeket. A vizsgálatsort a Chicxulub-krátertől 4500 kilométerre kezdte meg, hogy ellenőrizze az üledék összetételének esetleges változásait a becsapódási helyen, a krátertől olyan távolságban, ahová a becsapódás hatásai még elérhettek. Az elemzés kimutatta, hogy az üledékben a becsapódási törmelék csak egyetlen réteget alkotott.[44] Gerta Keller és a többszörös becsapódási elmélet más támogatói szerint az eredmények „túlértékeltek”, és nem értenek egyet MacLeod következtetésével.[45] The Ring of Cenotes of Chicxulub Crater, Yucatan, seems to be unique by its characteristics, not comparable with any other site in the world. Its uniqueness, regarding its origin as the evidence of the crater impact, on the Late Cretaceous, of the Mezosoic Era, event that has been related with the extinction of dinosaurs in the world, is an.

Aldus, speculeert men, moeten er tot enkele uren na de inslag wereldwijd meteorietenregens zijn geweest. Veel sterfte heeft wellicht direct in deze regens plaatsgevonden, in ieder geval zouden deze regens wereldwijd bosbranden veroorzaken. An der Oberfläche ist von diesem drittgrößten Impaktkrater der Erde wenig zu bemerken, da der Norden von Yucatán sehr flach ist. Allerdings haben Untersuchungen gezeigt, dass leichte Bodenerhebungen nahezu halbkreisförmige Strukturen bilden und die Stärke der tropischen Bodenbildung ebenfalls den früheren Krater nachzeichnet.[6] Außerdem existiert bei einem Radius von etwa 83 km (Durchmesser von 166 km) eine konzentrische, perlschnurartige Aufreihung der für dieses Karstgebiet typischen Cenoten.[7] Die Daten der Shuttle Radar Topography Mission zeigen ebenfalls eine deutliche halbkreisförmige Topographie im Bereich der Impaktstruktur.[8][9] Die Entdeckungsgeschichte des Chicxulub-Kraters begann in den 1940er Jahren, als Geophysiker der staatlichen mexikanischen Erdölgesellschaft PEMEX während einer flugzeuggestützten Sondierung im Gebiet von Mérida eine ungewöhnliche gravitative und magnetische Anomalie feststellten. In der Hoffnung, auf eine Erdöllagerstätte zu stoßen, führte man in den 1950er Jahren mehrere Bohrungen durch, die zwar kein Erdöl, aber für die Yucatán-Plattform untypische, Andesit-ähnliche Gesteine zu Tage förderten. Da die meisten Geologen mit dem Phänomen von Einschlagkratern zu jener Zeit nicht vertraut waren, wurde in der ersten international zugänglichen Bestandsaufnahme von López Ramos (1975) die Untergrundstruktur als Vulkan gedeutet, der in die Sedimentgesteine der Kreide eingedrungen sei. Die Geophysiker Penfield und Camargo äußerten 1981 auf einem geophysikalischen Kongress erstmals die Vermutung, es könnte sich hierbei um einen Meteoritenkrater handeln. Ihre Idee fand jedoch vorerst wenig Resonanz.

Drilling Into the Chicxulub Crater, Ground Zero of the

“We’re feeling pretty good,” said co–chief scientist Sean Gulick in an interview from the deck of a drilling platform 30 kilometers offshore in the Gulf of Mexico. “I’m not getting much sleep out here, so we’re a little delirious.”Then, in 1991, researchers found evidence that the giant crater near the town of Chicxulub (pronounced CHEEK-she-loob) in Mexico came into being about the time of the mass extinction. The explosion that created the crater, which is more than 110 miles (180 kilometers) wide, likely involved a hit from an object about 6 miles (10 km) across. The crash would have released as much energy as 100 trillion tons of TNT, or beyond a billion times the power of the atom bombs that destroyed Hiroshima and Nagasaki.1990-ben Hildebrand a Houston Chronicle újságírójától, Carlos Byarstől értesült Penfield korábbi felfedezéséről.[15] Az év áprilisában kapcsolatba lépett vele, és hamarosan rátaláltak két New Orleansban őrzött Pemex-kőzetmintára. Hildebrand csapata megvizsgálta a mintákat, és arra a következtetésre jutott, hogy azok metamorf kőzetek. Chicxulub Municipality Tourism: Tripadvisor has 315 reviews of Chicxulub Municipality Hotels, Attractions, and Restaurants making it your best Chicxulub Municipality resource Yucatán er en halvøy i Mellomamerika som skiller Det karibiske hav fra Mexicogolfen.Halvøyas nordlige del tilhører de mexicanske statene Campeche, Quintana Roo og Yucatán.Den sørlige delen tilhører landene Belize og Guatemala.Halvøyas befolkning består av mayaindianere, spansktalende mestiser og engelsktalende kreoler i Belize

Meteoriteneinschläge: Bombardement aus dem All | WissenChicxulub - Krater auf der Halbinsel Yucatan: Dimensionen

De Chicxulubkrater is het 180 kilometer brede restant van een Planetoïdeinslag die ongeveer 65 miljoen jaar geleden heeft plaatsgevonden. De krater werd in 1991 ontdekt. De inslag ervan heeft misschien (mede) geleid tot het einde van het tijdperk der dinosauriërs.. De krater was decennialang onopgemerkt gebleven, doordat hij door 1000 meter jongere gesteenten verborgen werd Yucatan is west of the overrated Quintana Roo, and its capital, Merida, is a city whose name you've been hearing more and more. Mayan Ruins, Haciendas, and Crater Pools: The 4-Day Weekend in. Der Chicxulub-Krater (nach dem Ort Chicxulub Pueblo, von Mayathan Ch’ik Xulub [.mw-parser-output .IPA a{text-decoration:none}tʃikʃuˈlub], ch’ik „Floh, Zecke“, xulub’ „Teufel, Dämon, Horn“)[1] ist ein laut neuester Datierung 66 Millionen Jahre alter Einschlagkrater mit ca. 180 km Durchmesser im Norden der Halbinsel Yucatán in Nordamerika (Mexiko). Da er unter mächtigen Sedimentgesteinen begraben und nicht erodiert ist, zählt er zu den besterhaltenen großen Einschlagkratern der Erde. Im Zusammenhang mit der Kreide-Paläogen-Grenze wird er mit dem Aussterben der Dinosaurier und eines großen Teils der mesozoischen Tier- und Pflanzenwelt während des Übergangs zum Känozoikum in Verbindung gebracht.

Chicxulubkratern (uttalas tjick-schu-'lubb) är en uråldrig nedslagskrater, ett så kallat astroblem, som ligger begravd under Yucatánhalvön i Mexiko.Dess mittpunkt ligger ungefär under orten Chicxulub.Forskningar har åldersbestämt nedslagskratern till slutet av kritaperioden, ungefär 65 miljoner år sedan. Meteoritens diameter före nedslaget upattas till 10 km, och vid nedslaget. Geologists are to spend two months drilling 4,921 feet beneath the ocean floor of the Gulf of Mexico off the coast of the Yucatan Peninsula to obtain rock samples from the enormous asteroid crater

Chicxulub Crater in Chicxulub Puerto, Mexico (Google Maps

Vroeg in de jaren 80 bezocht Alan R. Hildebrand, een jonge student van de universiteit van Arizona het bergdorpje Beloc in Haïti. Hij onderzocht daar de Krijt-Tertiairovergang, die daar bestaat uit een dikke laag van grote gesteentefragmenten, die alle van dezelfde plek afkomstig waren en waarschijnlijk door een tsunami waren afgezet. Dergelijke gesteentelagen komen op veel plaatsen ter wereld voor, ze zijn in het Caraïbisch bekken echter vaker te vinden. Tot slot moeten er huizenhoge tsunami's en wereldwijde aardbevingen zijn geweest. Op de planeet Mercurius is te zien wat de gevolgen zijn van een soortgelijke inslag. Aan één kant van de planeet is een krater te zien, precies aan de andere kant van de planeet zijn enorme vervormingen van het planeetoppervlak te zien, groter dan de krater. Dit is namelijk de plaats waar alle seismische golven bij elkaar komen en elkaar versterken. In India zijn sporen gevonden van aardvervormingen die hier aan doen denken. Deze aardvervormingen werden ironisch genoeg tot voor kort door tegenstanders van de inslagtheorie gebruikt als bewijs dat er meer aan de hand was dan een meteoriet. Although scientists have drilled into the buried crater before on land, this is the first offshore effort, and also the first to go after the crater’s “peak ring”—a circular ridge inside the crater rim that’s characteristic of the solar system’s largest impact craters. Astronomers see peak rings on the moon, Mars, and Mercury, but they have never been able to sample one on Earth until now. The team has already been charting the return of life after the worldwide die-off in cores from higher up in the hole. By examining peak ring rocks closely, they hope to test models of crater formation and determine whether the crater itself was one of the first habitats for microbial life after the impact.

The peak ring is at the center of the crater, offshore of the Yucatan Peninsula. Image: NASA/BBC The core samples revealed rock that has been heavily fractured and altered by immense pressures Chicxulub Directions {{::location.tagLine.value.text}} Sponsored Topics. Legal. Help. Get directions, maps, and traffic for Chicxulub, Yucatán. Check flight prices and hotel availability for your visit. <style type=text/css> @font-face. This reasoned skepticism "is exactly what should happen in science," Alvarez told SPACE.com. "Radical new ideas must be challenged and tested, and that really happened extensively with this idea."A Chicxulub-kráter (ejtsd: tʃikʃuˈlub) egy óriási, ősi becsapódási kráter, melynek nyomai a mexikói Yucatán-félszigeten, illetve annak közelében, a tengeraljzaton maradtak fenn.[1] 170 kilométeres átmérőjével az ismert becsapódási kráterek közül a közepes méretűek közé tartozik. Középpontja a mexikói Chicxulub városka közelében van, melyről a nevét kapta (a maja szó jelentése „az ördög (démon) farka”, „az ördög szarva”, „az ördög bolhája” vagy „az elkapott (szarvas) szarva (agancsa)”).[2][3] A képződményt létrehozó kisbolygó legalább 10 kilométer átmérőjű volt. A legújabb 2010-es eredmények bizonyították, hogy a meteorit lényegesen nagyobb lehetett mint gondolták. Átlagosan 10–11 km-re saccolták, de az újabb mérések és mintavételezések arról tanúskodnak, hogy a test egy kb 14 km átmérőjű aszteorida lehetett A crater is a bowl-shaped depression produced by the impact of a meteorite, volcanic activity, or an explosion. View Article Diagram of the Triest

Tudott róla azonban, hogy 1951-ben a Pemex kutatófúrásokat végzett a térségben és az egyik furatban 1,3 kilométer mélyen vastag andezitréteget találtak. Ez a réteg keletkezhetett egy nagy becsapódás gerjesztette hőtől és nyomástól, de a kutatás idejében lávahalomnak gondolták. Ez a feltételezés azonban nem állt összhangban a környék geológiai sajátosságaival. Mikor Penfield megpróbált szerezni a mintákból, közölték vele, hogy elvesztették, vagy megsemmisítették azokat. Nem sikerült eljutnia a fúrás helyére sem, így felhagyott a kereséssel, publikálta eredményeit és visszatért a Pemex számára végzett munkájához. Chicxulub crater. Sharp incline on the right portion of the 3D inset indicates the rising eastern rim of the crater. Elevations of point features, modern populated places, were used to derive topography. Figure 3. Cenotes of the Yucatán Peninsula. Types of cenotes found in the region and ring zone. The vertical Yucatán is a state in the north western part of the Yucatán Peninsula, with its coastline facing the Gulf of Mexico.To the east is the state of Quintana Roo, home of Cancun and Cozumel; Campeche is to the south.. Yucatán is home to the Chicxulub Crater; geologists say that this crater dates back approx 65 million years from the Earth's collision with a meteorite, and it is implicated with. The Chicxulub crater (pronunciation: / ˈ tʃ iː k ʃ ᵿ l uː b /; Mayan: [tʃʼikʃuluɓ]) is an impact crater buried underneath the Yucatán Peninsula in Mexico. Its center is located near the town of Chicxulub, after which the crater is named. It was formed by a large asteroid or comet about 10 to 15 kilometres (6 to 9 miles) in diameter, the Chicxulub impactor, striking the Earth

The immense Chicxulub crater is a remnant of one of the most consequential days in the history of life on Earth. The asteroid strike triggered the Cretaceous-Paleogene, or K-Pg, mass extinction De Chicxulubkrater is het 180 kilometer brede restant van een Planetoïdeinslag die ongeveer 65 miljoen jaar geleden heeft plaatsgevonden. De krater werd in 1991 ontdekt. De inslag ervan heeft misschien (mede) geleid tot het einde van het tijdperk der dinosauriërs.

Een inslag van deze omvang slingert verder enorme hoeveelheden stof de atmosfeer in. Genoeg om wereldwijd te voorkomen dat zonlicht de aarde bereikt. Een scenario waar men rekening mee houdt, is dat het enkele maanden te donker is geweest om te zien en tot een jaar te donker voor fotosynthese. Bovtiskai kráter •  Chicxulub-kráter •  Siva-kráter •  Silverpit-kráter Während die Mehrheit der Geowissenschaftler diese Ansicht im Wesentlichen teilte, kritisierten andere zu Beginn der 2000er-Jahre, dass der Einschlag nicht die Rolle gespielt haben könne, die man ihm zwei Jahrzehnte lang zuschrieb. Entdeckungen von Impaktgläsern in älteren kreidezeitlichen Ablagerungen wurden als Indiz gedeutet, dass der Chicxulub-Krater bereits 300.000 Jahre vor der eigentlichen Kreide-Paläogen-Grenzschicht entstanden war und womöglich zu einer ganzen Serie von Meteoriteneinschlägen gehörte.[18] Das Massenaussterben wäre demnach nicht auf einen Meteoriten, sondern hauptsächlich auf die umfangreichen Flutbasalte des Dekkan-Trapps im westlichen Indien zurückzuführen. Die vulkanischen Aktivitäten dieser so genannten Magmatischen Großprovinz mit erheblichen Ausgasungen von Kohlenstoff- und Schwefeldioxid im höheren Gigatonnenbereich über einen Zeitraum von mehreren Hunderttausend Jahren hätten ausgereicht, die irdische Biosphäre nachhaltig zu destabilieren.

The Chicxulub crater is a 145 km wide depression in subsurface of the northwestern Yucatan Peninsula of Mexico. It is thought to be the result of an asteroid impact approximately 65.5 Ma., dating at around the same time as the Cretaceous-Paleogene (K/T) extinction event.This mass extinction resulted in the loss of roughly 75% or plant and animal life on Earth, including non-avian dinosaurs The Chicxulub crater is an impact crater buried underneath the Yucatán Peninsula in Mexico.Its center is located near the town of Chicxulub, it was formed by a large asteroid or comet about 11 to 81 kilometers in diameter, the Chicxulub impactor, striking the Earth. The date of the impact coincides with the Cretaceous-Paleogene boundary less than 66 million years ago, a accepted theory is.

Dinossauros não teriam sido extintos se asteroide tivesse

Geochronologist Paul Renne, director of the Berkeley Geochronology Center in California, recalled that he was "very skeptical. I was an undergraduate at Berkeley at the time, where you had the Alvarez father-and-son team, so there was probably a major incentive to accept this idea as really cool, but I thought it was really far out and nonsense, to be honest."© 2020 American Association for the Advancement of Science. All rights Reserved. AAAS is a partner of HINARI, AGORA, OARE, CHORUS, CLOCKSS, CrossRef and COUNTER.Der Krater wurde mittels der Vermessung von magnetischen und gravitativen Anomalien im Jahr 1991 nachgewiesen und eindeutig als Impaktkrater identifiziert.[2] Er bildet ein nahezu kreisförmiges, etwa 180 km durchmessendes Becken mit Zentralberg und innerer Ringstruktur. Die festgestellten Gravitationsanomalien führten zu der Annahme, dass der Krater mindestens drei Ringe und vermutlich noch einen zusätzlichen äußeren Ring mit ca. 300 km Durchmesser besitzt.[3] Die Kratertiefe beträgt 10 km (unmittelbar nach dem Einschlag 30 bis 35 km).[4][5] Da das Größenverhältnis von einem Impaktor zum erzeugten Einschlagkrater meistens zwischen 1:10 und 1:20 liegt, dürfte der Durchmesser des damaligen Asteroiden oder Kometen etwa 10 bis 15 km betragen haben.

According to the Alvarez hypothesis, the mass extinction of the dinosaurs at the transition from the Cretaceous to the Paleogene Period, the Cretaceous–Paleogene boundary (K–Pg boundary), 65 million years ago was caused by an asteroid impact somewhere in the greater Caribbean Basin. The deeply buried Chicxulub crater is centered off the north coast of the peninsula near the town of Chicxulub. The now-famous "Ring of Cenotes" (visible in NASA imagery) outlines one of the shock-waves from this impact event in the rock of ~66 million years of age, which lies more than 1 km below the modern ground surface near the centre, with the rock above the impact strata all being younger in age. The presence of the crater has been determined first on the surface from the Ring of Cenotes, but also by geophysical methods, and direct drilling with recovery of the drill cores. In einem Kooperationsprojekt unter Leitung des Internationalen Kontinentalen Tiefbohrprogramms am GeoForschungsZentrum Potsdam wurde 2002 das so genannte Chicxulub Scientific Drilling Project bei Yaxcopoil, südlich von Mérida, durchgeführt.[13] Die Kernbohrung Yaxcopoil-1 erreichte eine Tiefe von 1511 Metern und förderte einen nahezu vollständigen Bohrkern von känozoischen Sedimentgesteinen (0–795 m), verschiedene Lagen von Impaktiten innerhalb des Kraters (794–896 m) sowie eine Sequenz von Gesteinsschichten aus der Oberkreide, die vermutlich von einem in den Krater gerutschten Megablock des Untergrundes stammt (896–1511 m). Mehrere Forschergruppen untersuchten danach die gut erhaltenen Impaktite unter mehreren Aspekten. Erste Ergebnisse wurden 2004 in einem Sonderband der Fachzeitschrift Meteoritics & Planetary Science veröffentlicht.[14] Auf der Grundlage der bisher erzielten geophysikalischen Resultate wurden weitere Tiefbohrungen im Chicxulub-Krater für 2016 geplant.[15] Erste Resultate dieser erneuten Bohrung, welche bis 1335 Meter unter den Meeresboden reichte, wurden im Januar 2018 vorgestellt.[16] Vredefort Crater. June 27, 2018JPEG. Today's story is the answer to the August 2018 puzzler. About two billion years ago, an asteroid measuring at least 10 kilometers across hurtled toward Earth. The impact occurred southwest of what is now Johannesburg, South Africa, and temporarily made a 40-kilometer-deep and 100-kilometer-wide dent in the.

Chicxulub is the only pristine crater on Earth with an unequivocal peak ring—there are a few more, like Vredefort in South Africa and Sudbury in Canada, but they are quite heavily eroded. Der Chicxulub-Krater (nach dem Ort Chicxulub Pueblo, von Mayathan Ch'ik Xulub [tʃikʃuˈlub], ch'ik Floh, Zecke, xulub' Teufel, Dämon, Horn) ist ein laut neuester Datierung 66 Millionen Jahre alter Einschlagkrater mit ca. 180 km Durchmesser im Norden der Halbinsel Yucatán in Nordamerika ().Da er unter mächtigen Sedimentgesteinen begraben und nicht erodiert ist, zählt er. «3D seismic reflection mapping of the Silverpit multi-ringed crater, North Sea». Geological Society of America Bulletin 117 (3): 354-368. doi:10.1130/B25591.1. Archivado desde el original el 9 de diciembre de 2011. Than, Ker (28 de noviembre de 2006). «Study: Single Meteorite Impact Killed Dinosaurs». livescience.co The graphic just to the above left shows the location of the Chicxulub crater on the Yucatan Peninsula relative to it's location to what is known as Albion Island in Belize. Albion Island, although called an island is not an island in the classical sense such as say Jamaica or Catalina, both of which are surrounded by large bodies of water

Astronomy 104: Lecture 19 Printable VersionBarringer Crater - Wikimedia Commons

The Chicxulub crater off the coast of Mexico's Yucatán Peninsula has preserved the details of what led to the extinction of most life on Earth millions of years ago, and it is the only crater. Last week, researchers brought up a 3-meter core section from a depth of 670 meters that contained bits of granite along with minerals originally deposited in hot, fluid-filled cracks—the first sign that the team had entered the peak ring. “We predicted the peak ring would be a big hydrothermal system,” says Gulick, a geophysicist at the University of Texas, Austin. He says it may be several more days of drilling before granite dominates the core samples and the team can declare itself entirely within the peak ring. However, Joanna Morgan, the other chief scientist at Imperial College London, thinks the presence of any granite at all signifies that the team is now working within the peak ring layer. “How far down into the peak ring is the peak ring?” Gulick asks. “It’s almost a semantic argument.”It took a long battle to win many scientists over, researchers say. One of those researchers is University of California at Berkeley geologist Walter Alvarez, who recalls the resistance to his team's claim that such a major change could happen abruptly instead of gradually.

Meteor Crater is 1.2 kilometers (0.75 miles) in diameter and 175 meters (575 feet) deep. The Chicxulub Crater, on Mexico's Yucatan Peninsula, was most likely created by a comet or asteroid that hit Earth about 65 million years ago. The crater is 180 kilometers (112 miles) wide and 900 meters (3,000 feet) deep Der Chicxulub-Krater in Mexiko, Halbinsel Yucatan, entstand vor 65 Millionen Jahren durch einen Meteoriten-Zerfall. Chicxulub ist im Vergleich zu anderen großen Kratern unseres Planeten recht jung. Wissenschaftlern zufolge könnte diese Katastrophe die Ursache für das teilweise oder vollständige. Diese „Vordatierung“ stieß von Anfang an auf Kritik[19] und gilt angesichts der aktuellen Forschungsergebnisse als unwahrscheinlich. Der Einsatz modernster Datierungsmethoden mit sehr geringen Toleranzbereichen führte zu dem Resultat, dass Impaktereignis und Kreide-Paläogen-Grenze zeitlich präzise übereinstimmen.[20][21] Auch der dem Einschlag folgende Impaktwinter gilt inzwischen als faktisch gesichert.[22] In der Wissenschaft bestand bis vor kurzem größtenteils Einigkeit darüber, dass am Ende der Kreide die Biodiversität und die Stabilität der Ökosysteme im Schwinden begriffen waren. Inzwischen spricht eine zunehmende Anzahl von Indizien dafür, dass die ökologische Situation im späten Maastrichtium gefestigter war als lange Zeit angenommen und dass wenig auf ein „schleichendes“ Dekkan-Trapp-Aussterben vor der K-P-Grenze hindeutet.[23][24] Neuere Untersuchungen vertreten deshalb die Schlussfolgerung, dass alleine der Chicxulub-Einschlag das Ende der mesozoischen Faunenwelt eingeleitet hat.[25][26][25][27] Welcome to the Chicxulub google satellite map! This place is situated in Ixil, Yucatan, Mexico, its geographical coordinates are 21° 8' 0 North, 89° 31' 0 West and its original name (with diacritics) is Chicxulub Krater, 1970'lerin sonlarında Yucatán'da petrol ararmakta olan jeofizikçiler Antonio Camargo ve Glen Penfield tarafından keşfedildi. Penfield, başlangıçta bu eşsiz jeolojik özelliğin aslında bir krater olduğuna dair kanıt elde edemeyince arayışından vazgeçti. Alan Hildebrand ile temasları sayesinde, bir göktaşı krateri.

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