藏北申扎地区晚二叠世早期的皱纹珊瑚  

Early Late Permian rugosa in the Zainza area,northern Tibet

作　　者：程立人[1] 武世忠[1] 张予杰[1] 

机构地区：[1]吉林大学地球科学学院,吉林长春130026

出　　处：《地质通报》2002年第1期24-28,共5页Geological Bulletin of China

基　　金：西藏1:25万申扎县幅区调项目资助

摘　　要：作者在进行申扎县幅1∶25万区域地质调查工作中,发现一套巨厚的白云岩和白云质灰岩组成的岩系,整合覆于早二叠世中晚期地层下拉组之上,并在此岩系底部采集到晚二叠世早期的皱纹珊瑚Waagenophyllumindicumvar.crassiseptatumWu和LiangshanophyllumstreptoseptatumWang,从而确定本区有晚二叠世地层的存在。During the1∶250000scale mapping of the Zainza Sheet,the authors found a very thick series of dolomite and dolomitic limestone,which rests conformably on the middle-late Early Permian Xiala For-mation.The early Late Permian rugosa Waagenophyllum indicum var.crassiseptatum Wu and Liang-shanophyllum streptoseptatum Wang were collected from the base of this series.Thus the authors confirm the existence of Late Permian strata in the area.

关 键 词：西藏 申扎地区 晚二叠世 皱纹珊瑚 白云岩 灰岩 

分 类 号：Q915.813.3[天文地球—古生物学与地层学]