%0 Journal Article
%T Geochronology and geochemistry of granites in the Tengliang area, western Yunnan: Tectonic implication<br>滇西腾冲—梁河地区花岗岩的年代学、地球化学及其构造意义
%A YANG QiJun
%A XU YiGang
%A HUANG XiaoLong
%A LUO ZhenYu
%A SHI YuRuo
%A <br>杨启军
%A 徐义刚
%A 黄小龙
%A 罗震宇
%A 石玉若
%J 岩石学报
%D 2009
%I 
%X The granitoids outcropped extensively in the form of batholiths, stocks, and dikes in the Tengchong-Lianghe area, east of Eastern Himalaya Syntaxis. The plutons (so called Tengliang granites) are composed of Guyong Group and Binglanjiang Group. The Tengliang granites are distributed along a number of NNE-extending faults. They show some shearing features related to syn-tectonic intrusion and dyke-developing emplacement. SHRIMP zircon U-Pb dating reveals two episodes of magmatism of Late Cretaceous (76~67Ma; Guyong Group) and Early Paleocene (53Ma; Bingliangjiang Group). The Tengliang granites are composed of biotite monzonogranite, biotite perthite granite, pegmatite, with no typical peraluminous minerals. Characterized by high-potassium, peraluminous to strongly peraluminous, they were generated from lower to middle crust by partial melting of metapelite. The partial melting was induced by crustal thickening related to the subduction of Neo-Tethyan plate and subsequent collision between India and Asia continents. It is suggested that the Tengliang granites are the eastward extending part of Gandese batholith, but have different genesis.
%K Tengliang granites
%K U-Pb dating
%K Neo-Tethys
%K Continent-continent collision<br>腾梁花岗岩
%K U-Pb定年
%K 喜马拉雅特提斯
%K 陆陆碰撞
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=A988457F657CB30A92E1A5F728265590&yid=DE12191FBD62783C&vid=C5154311167311FE&iid=94C357A881DFC066&sid=8AF49F1519D8BF1E&eid=E26AA41AE15D3061&journal_id=1000-0569&journal_name=岩石学报&referenced_num=6&reference_num=40