The nature of Fe-Cr-Ni inclusions in shock-metamorphosed minerals in the bases of astroblemes

The content of Fe, Cr, and Ni in three astroblemes is analyzed with emphasis on inclusions in shock-metamorphosed minerals in the base of the Terny astrobleme. It is found that the composition of metallic film inclusions (evidently a condensate of impact-melt products) does not directly reflect the ratio of components in the crater-forming meteorite. Rather, this composition depends directly on the kinetic conditions of deposition and the character of the target material.