Craters large and small Crater Size (km) Vredefort (Free State, South Africa) 300 Sudbury (Ontario, Canada) 130 Chicxulub (Yucatan, Mexico) 240 Popigai
(Siberia) 100 Manicouagan (Quebec, Canada) 100 Acraman (South Australia) 90 Chesapeake Bay (Virginia, USA) 85 Morokweng (Kalahari Desert) 70 Kara (Yugorsky Peninsula, Russia) 65 Beaverhead (Idaho, USA) 60 Table 13.
According to the report, the Popigai
crater above the Arctic Circle has lain untapped because the old Soviet Union put all its efforts into making synthetic gems.
The Siberian branch of Russian Academy of Sciences said over the weekend that the Popigai
crater contains "many trillions of carats" of so-called "impact diamonds." Nikolai Pokhilenko, head of the Geological and Mineralogical Institute in Novosibirsk, told the RIA Novosti news agency Monday that the diamonds found in Popigai
include other molecular forms of carbon.
(2000) documented minerals with planar microstructures in the ejecta of the Popigai
En cualquier caso, estos valores son mas altos que los correspondientes a otras extinciones coincidentes con grandes eventos de impacto, como los de Chesapeake y Popigai
del Eoceno superior.
From 1992 to 2000 Gallant ranged across Siberia, exploring seven different impact areas, including the craterless blast site of the 1908 Tunguska event and the 100-kilometer-wide Popigai
crater in northern Siberia.
His journeys spanned the past decade and covered sites as far North as the enormous Popigai
crater in Siberia's polar region.
Shock metamorphic minerals in the Popigai
impact structure, Siberia