南秦岭大巴山地区的下震旦统及前震旦系  

The lower Sinian and pre-Sinian of the Daba Mountain area in the South Qinling region

作　　者：唐将 林源 

机构地区：[1]重庆市地勘总公司川东南地质大队,重庆400033

出　　处：《中国地质》2002年第2期143-146,共4页Geology in China

摘　　要：对南秦岭大巴山地区紧邻城口—房县深断裂北侧的一套碎屑岩及沉积火山碎屑岩的地层剖面特征进行了描述,探讨了地层划分及时代归属,依据岩性特征及地层接触关系,从上至下划分为下震旦统木座组、代安河组及前震旦系龙潭河组。In the paper the authors describe the features of a suite of clastic rocks and sedimentary-pyroclas-tic rocks and discuss the stratigraphic division and age assignment of the stratigraphic units on the north side of the Chengfang deep fault in the Daba Mountain area in the South Qinling.According to the litho-logical characteristics and contact relationships with the overlying and underlying strata,this suite is divided in descending order into the lower Sinian Muzhuo Formation and Dai'anhe Formation and the pre-Sinian Longtanhe Formation.

关 键 词：下震旦统 前震旦统 地层划分 大巴山地区 岩性 木座组 代安河组 

分 类 号：P534.1[天文地球—古生物学与地层学]