西藏羌塘北部上二叠统热觉茶卡组类动物群的特征  

Late Permian fusulinds from the Raggyorcaka Formation, northern Qiangtang, Tibet,China

作　　者：陈寿铭[1] 程立人[2] 吴水忠[3] 朱永山 

机构地区：[1]中国地质科学院地质研究所,北京100037 [2]吉林大学地球科学学院,吉林长春130061 [3]东北大学秦皇岛分校,河北秦皇岛066004 [4]东方地球物理公司,河北涿州072751

出　　处：《地质通报》2009年第12期1725-1729,共5页Geological Bulletin of China

基　　金：中国地质调查局项目<青藏高原1:25万玛依岗日幅区域地质调查>(编号:200313000054)资助

摘　　要：西藏羌塘北部热觉茶卡组的类动物群共3属11种(不含未定种),包括:Palaeofusulina sinensis Sheng,P.fusiformis Sheng,P.nana Likharev,P.laxa Sheng,P.wangi Sheng,P.minima Sheng et Chang,P.simplex Sheng et Chang,Parananlingella ac-ervula(Sheng et Rui),Reichelina changhsingensis Sheng et Chang,R.pulchra K.M.-Maclay,R.gaqoiensis Wang,Sheng etZhang。根据类沿剖面的分布,建立了Palaeofusulina带,由下至上划分为2个亚带:Palaeofusulina minima亚带和Palaeo-fusulina sinensis亚带。该类化石带属种丰度高,所含的类动物群属华夏特提斯型分子,为晚二叠世的代表分子和典型分子,与中国华南长兴阶类化石带可进行对比。The Late Permian in the Northern Qiangtang area was named Raggyorcaka Formation, which contains abundant fusulinds such as Palaeofusulina sinensis Sheng, P. fusiformis Sheng, P. nana Likharev, P. laxa Sheng, P. wangi Sheng, P. minima Sheng et Chang, P. simplex Sheng et Chang, Parananlingella acervula （Sheug et Kui）, Reichelina changhsingensis Sheng et Chang, R. pulchra K.M.-Maclay and R. gaqoiensis Wang, Sheng et Zhang. One fusulind zone named Palaeofusulina zone has been established, comprising two sub-zones： Palaeofusulina minima sub-zone and Palaeofusulina sinensis sub-zone. This study area is abundant in different Fusulinds fossil varieties, which all belong to Cathaysian Tethys type in representative of Late Permian, thus it can be correlated with the Changxing Fusulinds fossil belt in South China.

关 键 词：西藏羌塘地区 热觉茶卡组 类动物群 

分 类 号：P534.46[天文地球—古生物学与地层学] Q915.811.1[天文地球—地质学]