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The date of the impact coincides precisely with the Cretaceous–Paleogene boundary (K–Pg boundary), slightly more than 66 million years ago. [ 7 ] The crater is estimated to be over 150 km (93 mi) in diameter [ 10 ] and 20 km (12 mi) in depth, well into the continental crust of the region of about 10–30 km (6.2–18.6 mi) depth.
The paper announcing the discovery of the feature was published in Science Advances in 2022, [1] with an impact origin being confirmed in 2024. The crater is around 9.2 km (5.7 mi) in diameter, and formed around , close to the Cretaceous–Paleogene boundary when a small asteroid struck the ocean floor. [2]
The Danian is the oldest age or lowest stage of the Paleocene Epoch or Series, of the Paleogene Period or System, and of the Cenozoic Era or Erathem. The beginning of the Danian (and the end of the preceding Maastrichtian) is at the Cretaceous–Paleogene extinction event. The age ended , being followed by the Selandian. [5]
The Cretaceous–Paleogene (K–Pg) extinction event, [a] also known as the K–T extinction, [b] was the mass extinction of three-quarters of the plant and animal species on Earth [2] [3] approximately 66 million years ago. The event caused the extinction of all non-avian dinosaurs.
The Shiva crater is the claim by paleontologist Sankar Chatterjee [2] 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.
The Idaho Batholith is a granitic and granodioritic batholith of Cretaceous-Paleogene age that covers approximately 25,000 square kilometres (9,700 sq mi) of central Idaho and adjacent Montana. The batholith has two lobes that are separate from each other geographically and geologically. The Bitterroot lobe is the smaller lobe and the larger ...
Impact craters formed during the Cretaceous Period in the Mesozoic Era See also the preceding Category:Jurassic impact craters and the succeeding Category:Paleogene impact craters Pages in category "Cretaceous impact craters"
The Manson impact structure is an impact structure near the site of Manson, Iowa where an asteroid or comet nucleus struck the Earth during the Cretaceous Period, approximately 74 Ma. [1] It was one of the largest known impact events to have happened in North America. [ 2 ]