| 词条 | Zhamanshin crater |
| 释义 |
| name = Zhamanshin crater | other_name = | photo = Импактное стекло Жаманшинит.jpg | photo_size = | photo_alt = | photo_caption = Impact glass from the Zhamanshin impact site | map = Kazakhstan | map_alt = | map_caption = Location of the crater in Kazakhstan | map_size = | location = | label = | label_position = | coordinates = {{coord|48|24|N|60|58|E|type:landmark_scale:100000|display=inline,title}} | coordinates_ref = | confidence = Confirmed | diameter = {{convert|14|km|mi|abbr=on}} | depth = | rise = | imp_size = | age = 900,000 ± 100,000 years Mid Pleistocene | exposed = Yes | drilled = Yes | bolide = Chondrite | translation = | language = | pronunciation = | topo = | access = | country = {{KAZ}} | state = Aktobe Region | province = | district = | municipality = }}Zhamanshin is a meteorite crater in Kazakhstan. It is {{convert|14|km|mi}} in diameter and the age is estimated to be 900,000 ± 100,000 years (Pleistocene). The crater is exposed at the surface.[1] DescriptionIt is believed that the Zhamanshin crater is the site of the most recent meteorite impact event of the magnitude that could have produced a disruption comparable to that of nuclear winter, but it was not sufficiently large to have caused a mass extinction.[2] Preliminary papers in the late 1970s suggested either Elgygytgyn,[3] or Zhamanshin,[4] as the source of the Australasian strewnfield. References1. ^{{cite Earth Impact DB |name=Zhamanshin |accessdate=2017-10-09}} {{Impact cratering on Earth}}{{Kazakhstan-geo-stub}}2. ^[https://www.unb.ca/passc/ImpactDatabase/essay.html Essay "Impact Cratering on Earth"], based on: R.A.F. Grieve, 1990, Impact cratering on the Earth, Scientific American, v. 262, 66-73. 3. ^R.S. Dietz (1977), Elgygytgyn Crater, Siberia: Probable Source Of Australasian Tektite Field Meteoritics, June 1977, Vol 12, Issue 2, p. 145–157 4. ^B.P. Glass (1979), Zhamanshin crater, a possible source of Australasian tektites? Geology, July 1979, v. 7, p. 351-353 4 : Impact craters of Kazakhstan|Pleistocene impact craters|Pleistocene Asia|Aktobe Region |
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