西昆仑北羌塘陆块早-中二叠世地层化石的发现及意义  

Discovery of Early-Mid Permian fossils in the northern Qiangtang block, West Kunlun, and its significance

作　　者：崔建堂 刘振涛 王炬川 边小卫 朱海平 罗乾周 王满仓 王金安 孔文年 陈高潮 

机构地区：[1]陕西省地质调查院,陕西咸阳712000 [2]新疆地矿局地质矿产研究所,新疆乌鲁木齐830000

出　　处：《中国地质》2008年第1期111-116,共6页Geology in China

基　　金：中国地质调查局地质大调查项目(200313000003)资助

摘　　要：在1∶25万岔路口幅区调红山湖一带地质填图和实测地层剖面中,于西昆仑北羌塘陆块岔路口地区原划上石炭统恰提尔群中采到了大量珊瑚、蜓类化石,经鉴定其形成时代为早二叠世晚期—中二叠世早期。该生物化石的取得,为该套地层时代划分提供了依据,填补了西昆仑北羌塘陆块岔路口地区缺失早—中二叠世地层的空白,为进一步详细研究西昆仑北羌塘陆块地层层序格架及地质演化,提供了新的基础资料。Large numbers of coral and fusulinid fossils were collected from the strata originally assigned to the Upper Carboniferous Qiati＇er Group in the Chalukou area of the northern Qiangtang block, West Kunlun, during geological mapping and cross-section measurements of the Hongshanhu area of the 1：250,000 Chalukou Sheet. Their ages were determined to be late Early Permian-early Middle Permian. These fossils provide a basis for the determination of the age of this sequence of strata, fill in a gap of the Early-Mid Permian strata in the Chalukou area of the northern Qiangtang intensive study of the stratigraphic sequence block, West Kunlun, and offer new baseline information for the framework in the northern Qiangtang block, West Kunlun.

关 键 词：西昆仑北羌塘陆块 生物化石 早-中二叠世地层 

分 类 号：Q915[天文地球—古生物学与地层学]