%0 Journal Article
%T Zircon SHRIMP ages of Aolaoshan granite from the south margin of Qilianshan and its geological significance.<br>祁连南缘嗷唠山花岗岩SHRIMP锆石年龄及其地质意义
%A WU CaiLai
%A YANG JingSui
%A Trevor IRELAND
%A Joe WOODEN
%A LI HaiBing
%A WAN YuSheng
%A SHI RenDeng Institute of Geology
%A Chinese Academy of Geological Sciences
%A Beijing
%A China Stanford University
%A USA
%A <br>吴才来
%A TrevorIRELAND
%J 岩石学报
%D 2001
%I 
%X Zircon SHRIMP ages of Aolaoshan granite from the south margin of Qilian range from 445 Ma to 496 Ma, with an averaged age of 473 Ma, belonging to the early Ordovician. Geochemically, the granites are similar to I type granites. Tectonically, the granite was formed in island arc based on some discriminated diagrams. Combined with regional geology, authors suggest that the granite was one part of the ultra high pressure metamorphic belt of the south margin of Qilian and both have a close relationship.
%K Zircon
%K SHRIMP age
%K Granite
%K Ultra
%K high pressure metamorphic belt
%K South margin of Qilian<br>锆石
%K SHRIMP年龄
%K 花岗岩
%K 超高压变质带
%K 构造环境
%K 早奥陶世
%K 地球化学特征
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=6800550BFA7720F9&yid=14E7EF987E4155E6&vid=BCA2697F357F2001&iid=0B39A22176CE99FB&sid=1B64850025D0BBBE&eid=78F0EFE028BD3783&journal_id=1000-0569&journal_name=岩石学报&referenced_num=18&reference_num=23