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Nyainqentanglha Shan: A window into the tectonic, thermal, and geochemical evolution of the Lhasa block, southern Tibet

D'Andrea Kapp, J; Harrison, Timothy; Kapp, Paul; Grove, Marty; Lovera, Oscar; Lin, D

Description

In the Nyainqentanglha (NQTL) massif, southern Tibet, a late Cenozoic, SE dipping, normal fault exhumed an oblique section of crust in its footwall. U-Th-Pb dating of zircon and monazite from footwall exposures reveals a collage of felsic intrusions including Cretaceous-early Tertiary and Miocene granitoids. Ages of the latter span >10 m.y., suggesting semicontinuous or episodic Miocene magmatism. Geochemical and isotopic analyses show a Gangdese arc affinity, indicating significant mantle heat...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
URI: http://hdl.handle.net/1885/80138
Source: Journal of Geophysical Research
DOI: 10.1029/2004JB003330

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