Puchezh-Katunki crater

Puchezh-Katunki crater
Landsat image of Puchezh-Katunki crater
Impact crater/structure
Confidence Confirmed
Diameter 40 km (25 mi) (rim-to-rim)
80 km (50 mi) (including ring terrace)
Age 167 ± 3 Ma
Middle Jurassic
Exposed No
Drilled Yes
Location
Coordinates 56°58′N 43°43′E / 56.967°N 43.717°E / 56.967; 43.717Coordinates: 56°58′N 43°43′E / 56.967°N 43.717°E / 56.967; 43.717
Country  Russia
Province Nizhny Novgorod Oblast
Location of the crater in Russia

Puchezh-Katunki is a meteor crater located in the Nizhny Novgorod Oblast of the Volga Federal District, Russia. It is 80 km (50 mi) in diameter and is estimated to be 167 ± 3 million years old, placing it in the Middle Jurassic. The crater is not exposed to the surface, but appears as variation in the vegetation. The Earth Impact Database lists a rim-to-rim diameter of 40 kilometres (25 mi).[1]

Description

Shock stationed clay mineral (Speel) Puchezh-Katunsky meteorite crater in the Moscow museum of astronautics.

The central dome, ring depression, and ring terrace of the 80 km (50 mi) wide impact structure are nearly completely buried under Neogene and Quaternary sediments, with the only exposed impactites found on the banks of the Volga River. [2]

One of the six largest known Phanerozoic impact craters, the Puchezh-Katunki crater is the only one not considered as a factor in a biotic extinction event. There is no known significant extinction in the Middle Jurassic, but there are clues suggesting the impact may have occurred coeval with the end-Triassic or Early Jurassic extinction.[2]

See also

References

  1. ↑ "Puchezh-Katunki". Earth Impact Database. University of New Brunswick. Retrieved 2017-10-09.
  2. 1 2 Pálfy, József (2004). "Did the Puchezh-Katunki Impact Trigger an Extinction?". Hungarian Natural History Museum.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.