IMPACT TUFFISITES OF THE POPIGAI ASTROBLEME
S.A. Vishnevsky, J. Raitala*, N.A. Gibsher, T. Г–hman*, and N.A. Pal'chik
Institute of Geology and Mineralogy, Siberian Branch of the RAS,
3 prosp. Akad. Koptyuga, Novosibirsk, 630090, Russia
* University of Oulu, POB 3000, FI-90014, Oulu, Finland
Keywords: Popigai astrobleme, impact tuffisites
Pages: 711-730
Abstract
Impact tuffisites of the Popigai astrobleme are described. This class of rocks has first been discovered in terrestrial astroblemes. Their dikes in the target gneisses are made up of a mixture of glass (10-90 vol.%), gneiss fragments, and cryptograin matrix. Most of the glass particles are porous; they are
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