浙江长兴地区长兴组放射虫化石及其指相意义  

RADIOLARIAN FOSSILS FROM THE CHANGXING FORMATION AT CHANGXING , ZHEJIANG PROVINCE AND THEIR FACIEOLOGICAL SIGNoncANCES

作　　者：杨美芳[1] 李继亮[1] 李红生[1] 陈海泓[1] 何海清 

机构地区：[1]中国科学院地质研究所

出　　处：《地质科学》1997年第2期229-232,共4页Chinese Journal of Geology(Scientia Geologica Sinica)

基　　金：国家自然科学基金

摘　　要：浙江长兴地区长兴组放射虫化石及其指相意义杨美芳，李继亮，李红生，陈海泓，何海清（中国科学院地质研究所北京１０００２９）关键词深水相，放射虫，长兴组，浙江省１引言浙江省长兴地区的长兴组煤山剖面一直作为中国乃至世界研究二叠系一三叠系界线的经典剖面之一。在...Theradiolarian fauna dealt with in the paper was collected from the upper part of the Changdng fomation of Zhejiang Provinoe. This faunacoznprisa 9 spedes beloagbg to 9 genem of Spunnellaria and AlbdUe.ada of radiolarian, TNs pap. ..y .x. . U.ng eo.o.t of . Oan.g n&oladan formadon and it is concluded that the upper partoftheChangxing formation is of pelagic fades. This conclusion comes from the following points: 1.TheupperpartoftheChangxingformation was developed in a kind of sea-basin sedimentation by the tudy in the tudy on the characteristics of the radiolan. fauna of this fomadon. 2The water depth in later Changxing period should be at least deeper than .200m in order to satisfy the sasfhy the paanktonic living habit of this radiolanan fauna of the formation, which is certified by the study on the distribution of modem radiolarian in oceans. 3 . The radiolarian fauna of Changxing formation is thought to live in a pelagic or hemipelagic enviromnent by compasring them witiolan of Palaeozoic in a worldwide scope

关 键 词：深水相 放射虫 长兴组 浙江 古动物化石 二叠系 

分 类 号：Q915.646[天文地球—古生物学与地层学]