%0 Journal Article
%T Cenozoic bimodal volcanic rocks of the West Qinling: Implication for the genesis and nature of the rifting of north-south tectonic belt<br>西秦岭新生代双峰式火山作用及南北构造带成因初探
%A YU XueHui
%A MO XuanXue
%A ZHAO ZhiDan
%A HE WenYan
%A LI Yong
%A <br>喻学惠
%A 莫宣学
%A 赵志丹
%A 和文言
%A 李勇
%J 岩石学报
%D 2011
%I 
%X Presenting the analysis data of whole rock chemistry, REE and trace element and Sr, Nd, Pb isotopes of the rhyolite, and 27 isotopic dating of the Cenozoic bimodal volcanic rocks from West Qinling. The studies showed that the Cenozoic bimodal volcanic rocks like to East Africa rift, consisted of kamafugite, carbonatite, shoshonite, rhyolite and/or trachyte. The age of the bimodal volcanic rocks is from 23Ma to 7.1Ma determined by isotopic dating of K/Ar and 39Ar/40Ar. The 87Sr/86Sr=0.704031~0.70525, 206Pb/2...
%K Cenozoic
%K Bimodal volcanic rocks
%K North-south tectonic belt
%K Continental rift
%K West Qinling<br>新生代
%K 双峰式火山岩
%K 南北构造带
%K 大陆裂谷
%K 西秦岭
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=8C6F2BFE80788BD19609BEF94BB7FF27&yid=9377ED8094509821&vid=DB817633AA4F79B9&iid=DF92D298D3FF1E6E&sid=8C0169D6BEAD5F6C&eid=00E6F103E9AAA8E8&journal_id=1000-0569&journal_name=岩石学报&referenced_num=0&reference_num=21