Zhamanshin crater
Zhamanshin is a meteorite crater in Kazakhstan. It is 14 kilometres (8.7 mi) in diameter and the age is estimated to be 900,000 ± 100,000 years (Pleistocene). The crater is exposed at the surface.[1]
![]() Impact glass from the Zhamanshin impact site | |
Impact crater/structure | |
---|---|
Confidence | Confirmed |
Diameter | 14 km (8.7 mi) |
Age | 900,000 ± 100,000 years Mid Pleistocene |
Exposed | Yes |
Drilled | Yes |
Bolide type | Chondrite |
Location | |
Coordinates | 48°24′N 60°58′E |
Country | Kazakhstan |
State | Aktobe Region |
![]() ![]() Location of the crater in Kazakhstan |
Description
It 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.
gollark: Makes allocating them centrally very weird.
gollark: But there are only 256 addresses.
gollark: They take turns and presumably use a "transistor" to shut off unwanted things when not in use.
gollark: What?
gollark: https://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/3.4V_Zener_diode_V-A_characteristic.svg/800px-3.4V_Zener_diode_V-A_characteristic.svg.png
References
- "Zhamanshin". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2017-10-09.
- Essay "Impact Cratering on Earth", based on: R.A.F. Grieve, 1990, Impact cratering on the Earth, Scientific American, v. 262, 66-73.
- R.S. Dietz (1977), Elgygytgyn Crater, Siberia: Probable Source Of Australasian Tektite Field Meteoritics, June 1977, Vol 12, Issue 2, p. 145–157
- B.P. Glass (1979), Zhamanshin crater, a possible source of Australasian tektites? Geology, July 1979, v. 7, p. 351-353
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