Английская Википедия:Beaverhead impact structure

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Short description Шаблон:Infobox terrestrial impact site

Файл:Beaverhead shatter cone.jpg
A shatter cone produced by the Beaverhead impact

The Beaverhead impact structure is the second largest impact structure within the U.S. It lies within the states of Idaho and Montana. Estimated at Шаблон:Convert in diameter, it is the ninth largest impact crater on Earth.

With an estimated age of 600 million years (Neoproterozoic), the impact's original shatter cones along the impact structure's perimeter provide some of the structure's only remaining visible evidence.

It is named for the Beaverhead region of southwestern Montana in which it was first discovered.

See also

Шаблон:Stack

References

Шаблон:Reflist

Further reading

Шаблон:Idaho Шаблон:Impact cratering on Earth


Шаблон:LemhiCountyID-geo-stub Шаблон:BeaverheadCountyMT-geo-stub Шаблон:US-geology-stub