Инд. авторы:	De Grave J., Glorie S., Buslov M.M., Izmer A., Fournier-Carrie A., Batalev V.Y., Vanhaecke F., Elburg M., Van den haute P.
Заглавие:	The thermo-tectonic history of the Song-Kul plateau, Kyrgyz Tien Shan: Constraints by apatite and titanite thermochronometry and zircon U/Pb dating
Библ. ссылка:	De Grave J., Glorie S., Buslov M.M., Izmer A., Fournier-Carrie A., Batalev V.Y., Vanhaecke F., Elburg M., Van den haute P. The thermo-tectonic history of the Song-Kul plateau, Kyrgyz Tien Shan: Constraints by apatite and titanite thermochronometry and zircon U/Pb dating // Gondwana Research. - 2011. - Vol.20. - Iss. 4. - P.745-763. - ISSN 1342-937X. - EISSN 1878-0571.
Внешние системы:	DOI: 10.1016/j.gr.2011.03.011; SCOPUS: 2-s2.0-80052883751;
Реферат:	eng: The Song-Kul Basin sits on a plateau at the Northern and Middle Kyrgyz Tien Shan junction. It is a lacustrine basin, occupied by Lake Song-Kul and predominantly developed on igneous basement. This basement was targeted for a multi-method chronological study to identify the different magmatic episodes responsible for basement formation and to constrain the timing of the development of its present-day morphology. Zircon U/Pb dating by LA-ICP-MS revealed four different magmatic episodes: a Late Cambrian (~. 500. Ma) island arc system, a Late Ordovician (~. 450. Ma) subduction related intrusion, an Early Permian (~. 290. Ma) collisional stage, and a Middle to Late Permian (~. 260. Ma) post-collisional magmatic pulse. Middle to Late Triassic (~. 200-230. Ma) titanite fission-track ages and Late Triassic - Early Jurassic (~. 180-210. Ma) apatite fission-track ages and thermal history modeling indicate the Song-Kul basement was already emplaced in the shallow crust at that time. An exhumed fossil apatite fission-track partial annealing zone is recognized in the bordering Song-Kul mountain ranges. The area experienced only minor post-Early Mesozoic denudation. The igneous basement was slowly brought to apatite (U-Th)/He retention temperatures in the Late Cretaceous-Palaeogene. Miocene to present reactivation of the Tien Shan does not manifestly affect this part of the orogen. © 2011 International Association for Gondwana Research.
Ключевые слова:	Zircon U/Pb dating; Tien Shan; Thermochronology; Tectonics; Song-Kul;
Издано:	2011
Физ. характеристика:	с.745-763