Microstructural evidence of impact-induced crystalplastic deformation and postshock annealing of quartz
2006Universitätsverlag Göttingen
Article in Anthology
Verlagsversion
Deutsch
Trepmann, Claudia A.; Spray, John G., 2006: Microstructural evidence of impact-induced crystalplastic deformation and postshock annealing of quartz. In: Philipp, S.; Leiss, B; Vollbrecht, A.; Tanner, D.; Gudmundsson, A. (eds.): 11. Symposium "Tektonik, Struktur- und Kristallingeologie"; 2006, Univ.-Verl. Göttingen, S. 229 - 232., , DOI: 10.23689/fidgeo-1830.
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During impact, rocks at the surface
and accessible depths encounter extreme
conditions. The hydrostatic component of the shock wave-associatedstress, the so-called shock pressure, canreach several tens of GPa in the central part of the structure. The shock crust and its comprehensive experimental
calibration. Two distinct types of
quartz microstructure in charnockitic
target rocks and quartz veins of the
Charlevoix impact structure are compared
and contrasted in order to distinguish
shock-induced microstructures
that indicate a high hydrostatic stress
component of the shock wave-associated
stress from those that indicate a high
deviatoric component, as well as associated
microstructures that were generated
during post-shock relaxation...