%0 Journal Article
%T Dating of two types of granite from north Qilian,China<br>北祁连东部两类Ⅰ型花岗岩定年及其地质意义
%A WU CaiLai
%A YANG JingSui
%A YANG HungYi
%A Joseph L WDEN
%A SHI RenDeng
%A CHEN SongYoung
%A ZHENG QiuGuang Institute of Geology
%A Chinese Academy of Geological Sciences
%A Beijing
%A china Chungkung University
%A Taiwan
%A China Stanford University
%A CA USA
%A <br>吴才来
%A 杨经绥
%A 杨宏仪
%A 史仁灯
%A 陈松永
%A 郑秋光
%A Joseph
%A L.WOODEN
%J 岩石学报
%D 2004
%I 
%X 北祁连东部早古生代地层中产出两种特征不同的I型花岗岩类,其一以井子川岩体为代表,暗色矿物以角闪石为主,稀土总量为90×10~(-6)～106×10~(-6),轻重稀土比值小于8,锆石的SHRIMP年龄为464±15Ma,岩体形成的构造环境类似于岛弧;其二是以黄羊河岩体为代表,暗色矿物以黑云母为主,稀土总量为214×10~(-6)～250×10~(-6),轻重稀土比值大于8,锆石的LA-ICP-MS年龄为383±6 Ma,岩体形成于碰撞后环境。
%K East of north Qiliang
%K Two type of granite
%K Zircon dating<br>北祁连东部
%K 两种类型花岗岩
%K 锆石定年
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=4C663D60F1E11093&yid=D0E58B75BFD8E51C&vid=A04140E723CB732E&iid=38B194292C032A66&sid=F10601728A1E9BEA&eid=4BEA9A781F286FC6&journal_id=1000-0569&journal_name=岩石学报&referenced_num=13&reference_num=27