The Nature and Models of Metamorphism
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Beschreibung
This book presents the genetic connections of metamorphism and geodynamics. It discusses the tectonic and magmatic processes as the reason of metamorphism, and the geological types of metamorphism, which define the features of Р-Т parameters and Р-Т-t paths. Three categories of metamorphism are distinguished depending on the heat flow rate: 1) at a geothermal gradient near to an average terrestrial ("normal") value; 2) at a heightened thermal gradient as the result of additional heat supply in the earth's crust by magmatic intrusions and diapirism of magma; 3) at a reduced thermal gradient during the collision of lithosphere plates and blocks of the earth's crust. The quantitative methods of description of metamorphism have been widely used in this book. The mathematical models of metamorphism have been studied in connection with magmatic intrusions, rifting process and magmatic diapirism. Mineral changes in the rocks controlled by variations of Р-Т of parameters, mass transfer and chemical reactions have also been characterized. The book proposes a quasi-stationary model of diffusion metasomatism with respect to the formation of zonal structures of minerals. The method of mineral thermobarometry for the conditions of unsteady equilibrium has been worked out; the quantitative analysis of mass transfer during metamorphic reactions in the rock matrix has been carried out, and the mobility of chemical elements at metamorphism has been estimated as well.
The book is intended for specialists in the fields of petrology, mineralogy and geochemistry, and for students at the senior and graduate level.
This book presents the genetic connections of metamorphism and geodynamics. It discusses the tectonic and magmatic processes as the reason of metamorphism, and the geological types of metamorphism, which define the features of Р-Т parameters and Р-Т-t paths. Three categories of metamorphism are distinguished depending on the heat flow rate: 1) at a geothermal gradient near to an average terrestrial ("normal") value; 2) at a heightened thermal gradient as the result of additional heat supply in the earth's crust by magmatic intrusions and diapirism of magma; 3) at a reduced thermal gradient during the collision of lithosphere plates and blocks of the earth's crust. The quantitative methods of description of metamorphism have been widely used in this book. The mathematical models of metamorphism have been studied in connection with magmatic intrusions, rifting process and magmatic diapirism. Mineral changes in the rocks controlled by variations of Р-Т of parameters, mass transfer and chemical reactions have also been characterized. The book proposes a quasi-stationary model of diffusion metasomatism with respect to the formation of zonal structures of minerals. The method of mineral thermobarometry for the conditions of unsteady equilibrium has been worked out; the quantitative analysis of mass transfer during metamorphic reactions in the rock matrix has been carried out, and the mobility of chemical elements at metamorphism has been estimated as well.
The book is intended for specialists in the fields of petrology, mineralogy and geochemistry, and for students at the senior and graduate level.
Summarizes latest studies in the fields of metamorphism, geothermobarometry and kinetics of mineral reactions Contains examples of the evolution of metamorphic complexes in Siberia and Central Asia Expands the idea of metamorphism as an indicator of geodynamics
Autor*in
Vladimir V. Reverdatto
Themen in »The Nature and Models of Metamorphism«
p-T paths diapirism Thermobarometry Geodynamics Korzhinsky-Fisher-Joesten model Kinetics of metamorphic reactions Mathematical models of metamorphism interpretation of metamorphic processes Observation of metamorphic processes metamorphic mineralogy metamorphic petrology metamorphic geochemistry Geothermobarometry structural geology quantitative geology
Stimmen zu »The Nature and Models of Metamorphism«
“This work, a translation of a Russian text published in 2017, presents a thorough and useful overview of metamorphic processes and materials, as well as their use in deciphering earth history. … this is a comprehensive text that can fulfill the purposes of both educating the geologically trained reader and serving as a reference to the application of techniques. An index would have been a welcome addition. Summing Up: Recommended. Advanced undergraduates through faculty and professionals.” (I. D. Sasowsky, Choice, Vol. 56 (12), August, 2019)
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