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Shock metamorphism in quartz at Sevetin and Susice (Bohemia)? A TEM investigation
Author(s) -
Cordier P.,
Vrána S.,
Doukhan J. C.
Publication year - 1994
Publication title -
meteoritics
Language(s) - English
Resource type - Journals
eISSN - 1945-5100
pISSN - 0026-1114
DOI - 10.1111/j.1945-5100.1994.tb00660.x
Subject(s) - metamorphism , shock metamorphism , quartz , geology , transmission electron microscopy , microstructure , shock (circulatory) , geochemistry , mineralogy , crystallography , materials science , impact crater , chemistry , paleontology , nanotechnology , physics , medicine , astronomy
— The possible impact origin of the Sevetin and Susice structures (Bohemia, Czech Republic) has been tested by searching for shock metamorphism in quartz. Transmission Electron Microscopy (TEM) investigation revealed microstructures originating only from tectonic deformation. No lattice defects characteristic of shock deformation have been detected, even considering possible annealing of microstructures. An impact origin for Sevetin and Susice is not supported by TEM study.