%0 Journal Article
%T The Geological Characteristics of Sea floor Exhalation Sedimentary Chert in Lower Cambrian Black Shales in Dayong Cili Area, Hunan Province<br>湖南大庸慈利一带下寒武统黑色页岩中海底喷流沉积硅岩的地质特征
%A Li Youyu
%A <br>李有禹
%J 岩石学报
%D 1997
%I 
%X 湘西北大庸慈利一带下寒武统黑色页岩中的硅岩，分布上受深断裂控制，具多孔状构造，微量元素Ｓｅ、Ａｓ、Ｂａ含量较高，Ａｌ／（Ａｌ＋Ｆｅ＋Ｍｎ）比值为０．１５～０．３２，稀土元素ΣＲＥＥ含量大于围岩的数倍，Ｃｅ亏损，δ１８Ｏ（对ＳＭＯＷ）值为１７．６２‰～２２．９１‰。这些特征表明，该硅岩是一种典型的喷流岩，并构成湘西北镍钼多金属矿床的容矿岩系
%K Lower Cambrian
%K Black shale
%K Stratified chert
%K Exhalative gensis
%K Dayong
%K Cili araa
%K Hunan Province<br>下寒武统
%K 黑色页岩
%K 层状硅岩
%K 喷流成因
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=7A6D820AA39AE1ECE984195AEBA509C1&yid=5370399DC954B911&vid=FC0714F8D2EB605D&iid=CA4FD0336C81A37A&sid=CDEBD1ACE0A4C1C1&eid=6FBD78E3BAB60869&journal_id=1000-0569&journal_name=岩石学报&referenced_num=11&reference_num=4