METAMORPHIC EVOLUTION OF HIGH-ALUMINA METAPELITES NEAR THE PANIMBA OVERTHRUST (YENISEI RANGE): MINERAL ASSOCIATIONS, PT-CONDITIONS, AND TECTONIC MODEL
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dc.contributor.author | Likhanov I.I. | |
dc.contributor.author | Polyanskii O.P. | |
dc.contributor.author | Reverdatto V.V. | |
dc.contributor.author | Kozlov P.S. | |
dc.contributor.author | Vershinin A.E. | |
dc.contributor.author | Krebs M. | |
dc.contributor.author | Memmi I. | |
dc.date.accessioned | 2021-03-23T04:31:48Z | |
dc.date.available | 2021-03-23T04:31:48Z | |
dc.date.issued | 2001 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=14998014 | |
dc.identifier.citation | Russian Geology and Geophysics, 2001, 42, 8, 1205-1220 | |
dc.identifier.issn | 1068-7971 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/27060 | |
dc.description.abstract | An attempt is made to study pressure-heterogeneous high-alumina metapelites of andalusite-sillimanite and kyanite-sillimanite fades series for clearing up the PT-evolution of metamorphism related to thrusting tectonics. As a result of detailed research with the use of geothennobarometry and THERMOCALC-based analysis of mineral equilibria, PT-conditions were estimated and PT-paths of evolution were plotted for moderate and elevated pressures. The obtained data on the change of PT-conditions of metamorphism suggest that the kyanite substitution for andalusite and other mineral transformations were caused by an increase in pressure under low geothermal gradient, described by a model for tectonic thickening of the crust in the zone of the Panimba overthrust. The absence of a marked increase in temperature on thrusting is explained by specific behavior of stationary geotherms for different kinds of rocks that have different thermophysical and heat-producing properties. | |
dc.subject | High-alumina metapelites | |
dc.subject | thermobarometry | |
dc.subject | P-T paths | |
dc.subject | tectonic model | |
dc.subject | Yenisei Range | |
dc.title | METAMORPHIC EVOLUTION OF HIGH-ALUMINA METAPELITES NEAR THE PANIMBA OVERTHRUST (YENISEI RANGE): MINERAL ASSOCIATIONS, PT-CONDITIONS, AND TECTONIC MODEL | |
dc.type | Статья |
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