%0 Journal Article
%T Zircon SHRIMP Dating and Geochemical Characteristics of Granites in the Eastern Part of the Bayan Har Mountains<br>巴颜喀拉山东段花岗岩锆石SHRIMP定年及其地球化学特征
%A SHA Shu-qing
%A WANG Zong-xiu
%A GUO Tong-zhen
%A XIAO Wei-feng
%A YANG Xin-de
%A <br>沙淑清
%A 王宗秀
%A 郭通珍
%A 肖伟峰
%A 杨欣德
%J 地球学报
%D 2007
%I 
%X In the eastern part of the Bayan Har Mountains, granites with the SHRIMP U-Pb age of 218197 Ma directly intruded folded Triassic strata and are unconformably covered by Jurassic Nianbao Formation. These granites, composed of granodiorite, adamellite and syenogranite, have porphyritoid or porphyritic texture and abundant aluminum and potassium. In addition, they are characterized by lots of biotites, some aluminum-rich minerals such as garnets and tourmalines, and some gray fine dioritic inclusions. With A/CNK 1.001.22, they should belong to CPG-type granite in Barbarin's classification. They were formed at the late stage of Bayan Har intracontinental orogenic activity.
%K eastern part of Bayan Har Mountains
%K granites
%K intracontinental orogenics
%K Zircon SHRIMP age<br>巴颜喀拉山东段
%K 花岗岩
%K 陆内碰撞造山
%K 锆石SHRIMP年龄
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=1DF69A47DE80569EC8F859DF61571180&aid=82E53A58B96F5AAB2726482A2763CE61&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=38B194292C032A66&sid=4D7D059FFBF006B9&eid=1A363081E1FF7014&journal_id=1006-3021&journal_name=地球学报&referenced_num=5&reference_num=16