Web15 de mai. de 2024 · Chicxulub Crater - The impact that changed life on Earth. Image source, NASA. Image caption, The outer rim (white arc) of the crater lies under the Yucatan Peninsula itself, but the inner peak ... http://large.stanford.edu/courses/2015/ph240/xu2/
The Chicxulub Impact: Impact Energy and Climate Change
The crater is estimated to be 180 kilometers (110 miles) in diameter and 20 kilometers (12 miles) in depth. It is the second largest confirmed impact structure on Earth, and the only one whose peak ring is intact and directly accessible for scientific research. Ver mais The Chicxulub crater (IPA: [tʃikʃuˈlub] (listen)) is an impact crater buried underneath the Yucatán Peninsula in Mexico. Its center is offshore near the community of Chicxulub, after which it is named. It was formed slightly over 66 Ver mais A 2013 study published in Science estimated the age of the impact as 66,043,000 ± 11,000 years ago (± 43,000 years ago considering systematic error), based on multiple lines of evidence, including argon–argon dating of tektites from Haiti and Ver mais The form and structure (morphology) of the Chicxulub crater is known mainly from geophysical data. It has a well-defined concentric multi-ring structure. The outermost ring was identified using seismic reflection data. It is up to 130 kilometers (81 mi) … Ver mais In September 2007, a report published in Nature proposed an origin for the asteroid that created the Chicxulub crater. The authors, William F. Bottke, David Vokrouhlický, and Ver mais In the late 1970s, geologist Walter Alvarez and his father, Nobel Prize-winning scientist Luis Walter Alvarez, put forth their theory that the Cretaceous–Paleogene extinction was caused by an impact event. The main evidence of such an impact was contained in a thin … Ver mais Geophysical data Two seismic reflection datasets have been acquired over the offshore parts of the crater since its … Ver mais Pre-impact geology Before the impact, the geology of the Yucatán area, sometimes referred to as the "target rocks", consisted of a sequence of mainly Cretaceous limestones, overlying red beds of uncertain age above an unconformity … Ver mais Web29 de mar. de 2024 · Chicxulub asteroid impact: Stunning fossils record dinosaurs' demise. Published. 29 March 2024. Share. close panel. Share page. ... the fingerprint of an asteroid or comet," said Prof Alvarez. dev tools cookie clicker name
Dino-Killing Asteroid Hit Just the Right Spot to Trigger Extinction
Web11 de set. de 2024 · Asteroid that wiped out the dinosaurs was as powerful as 10 billion atomic bombs, new research finds "Not all the dinosaurs died that day, but many … Web11 de set. de 2024 · On impact, the research found, the Chicxulub asteroid — which was more than 6 miles wide — sparked wildfires that stretched for hundreds of miles, triggered a mile-high tsunami, and released ... Web7 de abr. de 2024 · Many water-dwelling organisms died as well. Acid rains – created by the mixing of vaporized sulfur and water – acidified lakes and streams. According to Sharpton, the acid rains also acidified the top layers of the oceans, especially near the impact site. This killed off the plankton-like microscopic foraminifera, which lived in the top ... church in pasig city