Bigach crater

Bigach crater
Impact crater/structure
Bigach impact crater (image centre)
Diameter	8.0 kilometers (5.0 mi)
Age	5,000,000 years
Location
Coordinates	48°36′00″N 82°0′00″E / 48.60000°N 82.00000°E / 48.60000; 82.00000Coordinates: 48°36′00″N 82°0′00″E / 48.60000°N 82.00000°E / 48.60000; 82.00000
Country	Kazakhstan
Bigach crater Location of Bigach impact crater in Kazakhstan

Bigach is an impact crater in Kazakhstan.^[1]

It is 8 km in diameter and the age is estimated to be 5 ± 3 million years (Pliocene or Miocene). The crater is exposed at the surface.

References

Impact cratering on Earth • Impact crater

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Topics	Alvarez hypothesis Breccia Coesite Complex crater Cretaceous–Paleogene boundary Cryptoexplosion Ejecta blanket Impact crater Impact structure Impactite Late Heavy Bombardment Lechatelierite Meteorite Moldavite Ordovician meteor event Planar deformation features Shatter cone Shock metamorphism Shocked quartz Stishovite Suevite Tektite

Research	Baldwin, Ralph Belknap Barringer, Daniel Barringer Medal Chao, Edward C T Dietz, Robert S Hartmann, William K Melosh, H Jay Ryder, Graham Schultz, Peter H Shoemaker, Eugene Earth Impact Database Impact Field Studies Group Lunar and Planetary Institute Traces of Catastrophe

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