Shock-metamorphic transformations of rock-forming minerals of layered amphibolite of the southern Urals

Autor: G. E. Valyano, V. I. Fel’dman, V. V. Milyavsky, T. I. Borodina, A. A. Belyakov, I. V. Belyatinskaya
Rok vydání: 2010
Předmět:
Zdroj: Moscow University Geology Bulletin. 65:289-300
ISSN: 1934-8436
0145-8752
DOI: 10.3103/s0145875210050042
Popis: In this work the patterns of shock-metamorphic transformations of rock-forming minerals (amphibole, plagioclase, and clinopyroxene) in layered crystalline schists (Southern Ural) appeared as a result of planar shockwave loading of rocks. Comparison of the data obtained with those of diaplect transformations of the above-listed minerals in the field and as a result of experiments with convergent spherical shockwaves for this rock revealed essential differences between transformations. The formation of polymineral shock-thermal apoamphibole and apoclinopyroxene aggregates that were typical for the conditions of spherical shockwave compression was not observed during stage shockwave compression, even at 52 GPa.
Databáze: OpenAIRE
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