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A giant impact crater beneath the Wilkes Land ice sheet was first proposed by Richard A. Schmidt in 1962 on the basis of the seismic and gravity discovery of the feature made by the U.S. Victoria Land Traverse in 1959–60 (VLT), and the data provided to Schmidt by John G. Weihaupt, geophysicist of the VLT (Geophysical Studies in Victoria Land, Antarctica, Report No. 1, Geophysical and Polar ...
The magnetic anomalies Bangui and Jackpine Creek, [145] the gravity anomalies Wilkes Land crater and Falkland Islands, [350] and others have been considered as being of impact origin. Bangui apparently has been discredited, [ 25 ] [ 351 ] but appears again in a 2014 table of unconfirmed structures in Africa by Reimold and Koeberl.
Wilkes Land is named after Lieutenant Charles Wilkes (later a rear admiral), the American explorer who commanded the 1838–42 United States Exploring Expedition. The naming is in recognition of Wilkes' discovery of the continental margin over a distance of 2,400 km (1,500 miles ) of coast, thus providing substantial proof that Antarctica is a ...
Experts believe about 10 to 50 meteorites-- the debris found after a meteor falls -- are dropped every day on Earth. Of course, the majority of these meteorites and their meteors aren't seen ...
The table below is arranged by the continent's percentage of the Earth's land area, and where Asian and Russian structures are grouped together per EID convention. The global distribution of known impact structures apparently shows a surprising asymmetry, [ 37 ] with the small but well-funded European continent having a large percentage of ...
A meteor that exploded in a spectacular fireball over Niagara Falls in 2022 was the smallest asteroid ever measured, a new study has found.. The asteroid, spotted by astronomers just hours before ...
A bolide: a very bright meteor of an apparent magnitude of −14 or brighter. Fireball over the Bering Sea viewed from space (18 December 2018) The following is a list of bolides and fireballs seen on Earth in recent times. These are small asteroids (known as meteoroids) that regularly impact the Earth.
This may explain the increased proportion of iron meteorites among finds (6.7%), over that among observed falls (4.4%). [3] There is also detailed statistics on falls such as based on meteorite classification. Only one known meteorite fall, the 2024 Charlottetown meteorite, was recorded with video including audio. The sound of the meteorite ...