Petrogenesis of Metamorphic Rocks - Tapa dura

Petrogenesis of Metamorphic Rocks

Couverture souple. Condición: Neuf. 348 pages, 24x16 cm Livre neuf et en parfait état, n'a jamais été lu. . Pour l'UE, envoi depuis la France, sans frais ou taxe douanière ou TVA. The concept of metamorphic facies and subfacies considers asso- ciations of mineral assemblages from diverse bulk compositions as characteristic of a certain pressure-temperature range. As new petrographic observations accumulated, it became increasingly difficult to accommodate this information within a manageable framework of metamorphic facies and subfacies. Instead, it turned out that mineral assemblages due to reactions in common rocks of a particular composi- tion provide suitable indicators of metamorphic conditions. Metamorphic zones, defined on the basis of mineral reactions, very effectively display the evolution of metamorphic rocks. Thus the im- portance of reactions in metamorphic rocks is emphasized. Experimen- tal calibration of mineral reactions makes it possible to distinguish reac- tions which are of petrogenetic significance from those which are not. This distinction provides guidance in petrographic investigations un- dertaken with the object of deducing the physical conditions of metamorphism. Nº de ref. del artículo: C0211

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