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THERMAL EVOLUTION OF THE SIBERIAN TRAPS LARGE IGNEOUS PROVINCE BASED ON RESULTS OF APATITE FISSION-TRACK ANALYSIS AND OTHER GEOCHRONOLOGICAL DATA FROM INTRUSIVE COMPLEXESдоклад на конференции
- Авторы: Bagdasaryan T.E., Veselovskiy R.V., Latyshev A.V., Thomson S.N., Zaitsev V.A., Marfin A.E.
- Международная Конференция : X International Siberian Early Career GeoScientists Conference (г. Новосибирск, Россия, 13-17 июня 2022)
- Даты проведения конференции: 13-17 июня 2022
- Дата доклада: 15 июня 2022
- Тип доклада: Устный
- Докладчик: Bagdasaryan T.E.
- Место проведения: г. Новосибирск, Russia
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Аннотация доклада:
We present results of apatite fission-track (AFT) and other geochronological data (apatite U-Pb (LA-MC-ICPMS) and Rb-Sr dating) from several intrusions located within the Siberian Traps Large Igneous Province. The obtained AFT ages are distributed between ca. 207 and ca. 173 Ma. We interpret the AFT ages as a consequence of sedimentary burial of the studied magmatic complexes to below the closure temperature of the AFT system, which took place after the formation of intrusions ca. 252-250 Ma. Later cooling as a result of exhumation of the studied rocks to near surface temperatures and decreasing of thermal flow then took place in the Late Triassic-Early Jurassic.
- Добавил в систему: Багдасарян Татьяна Эдвардовна
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