吉林省牙形刺生物地层研究的进展与问题  

PROGERESS AND PROPLEMS IN THE STUDY OF CONODONT BIOSTRATIGRAPHY IN JILIN PROVINCE

作　　者：王成源[1] 郎嘉彬[2] 周晓东[3] 殷长建[3] 李东津[3] 

机构地区：[1]中国科学院南京地质古生物研究所,江苏南京210008 [2]吉林大学古生物学与地层学研究中心,吉林长春130026 [3]吉林省区域地质矿产调查所,吉林长春130022

出　　处：《地层学杂志》2014年第3期299-304,共6页Journal of Stratigraphy

基　　金：国家青年基金项目"吉林中部地区石炭系牙形刺研究"(41102004);国家自然科学基金(41221001;41290260;41072008)资助

摘　　要：近年来,吉中地区牙形刺生物地层取得了一些进展,用牙形刺确定了二道沟组、寿山沟组、大河深组和范家屯组以及Monodiexodina动物群的时代,牙形刺生物地理区的研究也增添了新的资料。吉林省牙形刺生物地层还有很多工作要做:志留系、泥盆系的牙形刺还基本上是空白,应重点对依云地区石缝组、弯月组、石灰窑组和永吉县的王家街组展开工作。石炭纪牙形刺的研究应以磨盘山剖面为重点。建议大量取样,改进对浅变质岩的分析技术。The study of conodont biostratigraphy in central Jilin Province has made some progress in recent years.The depositional age of the Erdaogou,Shoushangou,Daheshen and Fanjiatun formations as well as Monodiexodinafauna has been determined by conodonts.New conodont data have been recovered from Jilin Province,but much more work remains,and there is virtually no information about Silurian and Devonian conodonts in Jilin Province.Future work should focus on the Shifeng,Wanyue,and Shihuiyao formations in the Yiyun area and on the Wangjiajie Formation in Yongji County.The Mopanshan section should be targeted for a detailed analysis of Carbonifeous conodont biostratigraphy.We recommend a more extensive collection of conodont samples,and greater efforts to improve fossil extraction techniques,especially for slightly metamorphosed rocks.

关 键 词：生物地层 牙形刺 志留纪 石炭纪 二叠纪 吉林 

分 类 号：P543.45[天文地球—构造地质学] P543.46[天文地球—地质学]