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Traces of Catastrophe – Comprehensive technical reference on the science of impact craters; Giant-impact hypothesis – Hypothesis of the formation of the Moon; Deniliquin multiple-ring feature – Buried feature in southeast Australia, suggested to be an impact structure (520 km-diameter crater would be the largest one on Earth)
The Vredefort impact structure is the largest verified impact structure on Earth. [1] The crater, which has since been eroded away, has been estimated at 170–300 kilometres (110–190 mi) across when it was formed. [2] [3] The remaining structure, comprising the deformed underlying bedrock, is located in present-day Free State province of ...
A team of California researchers surveying satellite images found a cenote ring centered on the town of Chicxulub Pueblo that matched the one Penfield saw earlier; the cenotes were thought to be caused by subsidence of bolide-weakened lithostratigraphy around the impact crater wall. [18]
The Kamil Crater is a 44.8 m (147 ft) wide and 15.8 m (52 ft) deep (original depth, a part covered by sand at present) meteorite impact crater in the East Uweinat Desert in southwestern New Valley Governorate, Egypt, [1] [2] Only 0.6 km (0.4 mi) north of the border with the Sudan and 600 m (2,000 ft) above sea level.
The Chesapeake Bay impact crater is a buried impact crater, located beneath the mouth of Chesapeake Bay, United States. It was formed by a bolide that struck the eastern shore of North America about 35.5 ± 0.3 million years ago, in the late Eocene epoch. It is one of the best-preserved "wet-target" impact craters in the world. [3]
Location of the crater in Sweden The Siljan Ring ( Swedish : Siljansringen ) is a prehistoric impact structure in Dalarna , central Sweden. [ 1 ] It is one of the 15 largest known impact structures on Earth and the largest in Europe , with a diameter of about 52 kilometres (32 mi).
The news about the discovery of the world’s largest asteroid impact crater is huge, if true—323-miles-in-diameter huge.. Researchers at University New South Wales (UNSW) believe they’ve ...
Natural changes called bioturbation, including burrows, frost cracks, etc., can reverse the structural timeline of an earthen mound such as Serpent Mound, however, and bioturbation can shift carbon left by a later culture on the surface to areas deep within the structure, making the earthwork appear younger. This factor may be significant to ...