The Shiva crater is the claim by paleontologist Sankar Chatterjee and colleagues that the Bombay High and Surat Depression on the Indian continental shelf west of Mumbai, India represent a 500-kilometre (310 mi) impact crater, that formed around the Cretaceous-Paleogene boundary. Chatterjee and colleagues have claimed that this could have contributed to the K-Pg extinction event. Other sc… WebIn 1943, the crew of a United States Army Air Force plane noticed a crater in northern Quebec, Canada. The crater’s remoteness prevented a geologic expedition until the 1950s, but once they were able to collect data from the site, geologists concluded that the structure was a meteorite crater produced from an impact roughly 1.4 million years ago.

The Curious Case of Lonar Lake: Why Has India’s Largest Crater …

WebLonar Crater is a young meteorite impact crater emplaced in Deccan basalt. Data from 5 drillholes, a gravity network, and field mapping are used to reconstruct its original dimensions, delineate the nature of the pre-impact target rocks, and interpret the emplacement mode of the ejecta. Our estimates of the pre-erosion dimensions are: … Web13 okt. 2024 · 1. Vredefort Crater - South Africa 27°0′S 27°30′E. This crater is not only the largest but also the oldest impact crater on Earth. 2.02 billion years ago, a meteorite or asteroid that was 6. ... barbara bernier obituary

‘Rare, unique’: Diyodar meteorite in 2024 was India’s first aubrite in ...

WebLonar Lake is located amid the enormous Deccan Traps, a massive basaltic rock in India, and is the only known alien impact crater. The lake was once thought to be volcanic in origin, but it is now recognized as an impact crater. Lonar Lake was formed by the collision of a meteor or an asteroid. Web26 jan. 2010 · Abstract— The Lonar crater, India, is the only well-preserved simple crater on Earth in continental flood basalts; it is excavated in the Deccan trap basalts of Cretaceous-Tertiary age. A representative set of target basalts, including the basalt flows excavated by the crater, and a variety of impact breccias and impact glasses, were … Web1 okt. 2024 · Initially, this structure was postulated to have formed by different processes: 1) kimberlite pipe (Auden, 1970), 2) diapirism (Crawford, 1972), 3) volcanic crater (Crawford, 1972), 4) a combination of volcanism and tectonism (Sharma, 1973), 5) tectonism (Ramasamy, 1984), and 6) a near-surface explosion of a meteorite (Rakshit, 1973). barbara berger ksd