13, P.O. Box 245, Snezhinsk, Chelyabinsk oblast, 456770, Russia email: e.a.kozlov@vniitf.ru b Geological...State University, Leninskie gory, Moscow, 119899 Russia email: saz@geol.msu.ru Received December 19, 2011;...host the following astrob lemes: The Popigai astrobleme in the Anabar Shield is 100 km in diameter and...including finds of such high pressure minerals as diamond, coesite, and stishovite (Masaitis et al., 1975;...Vishnevskii et al., 1975, 2002). The Janisjarvi astrobleme in Karelia is one of the oldest impact structures |