吉林双阳地区磨盘山组岩石组合特征  

Characteristics of rock association of Mopanshan Formation in Shuangyang area,Jilin Province

作　　者：李冬梅 张俊影[2] 陆浩[3] LI Dong-mei;ZHANG Jun-ying;LU Hao(Bureau of Natural Resources of Shuangyang District,Changchun City,Shuangyang 130600,Jilin,China;Regional Geological and Mineral Resources Survey of Jilin Province,Changchun130022,Jilin,China;Institute of Geologic and Mineral Resources Exploration and Design ofJilin Province,Changchun 130061,Jilin,China)

机构地区：[1]长春市双阳区自然资源局,吉林双阳130600 [2]吉林省区域地质矿产调查所,吉林长春130022 [3]吉林省地矿勘察设计研究院,吉林长春130061

出　　处：《吉林地质》2020年第3期45-49,共5页Jilin Geology

基　　金：吉林1∶5万大三家子(K51E004023)、烧锅街(K51E004024)、吉昌(K51E005024)幅区域地质调查(项目编号:DD20190042-05),所属二级项目辽东-吉中地区区域地质调查.

摘　　要：磨盘山组在吉林省分布较广,各地区在岩石组合、生物组合,厚度等方面均有一定的差异性。本文就该组在双阳地区岩石组合特征进行了描述和分析,总结其主要为灰白色结晶灰岩局布夹大理岩、中厚层状含生物碎屑灰岩、中厚层状含燧石结核、燧石条带灰岩,厚约1 300 m左右,产[蜓]、海百合茎等化石。确定了其为海浸范围最大的碳酸盐台地的沉积环境,揭示了与区域上其它地区岩性组合的不同,时代为早石炭世-早二叠世。Mopanshan Formation is widely distributed in Jilin Province.There are certain differences in rock assemblage,biological assemblage,thickness,etc.In this paper,the authors described and analysed the rock association characteristics of this formation in Shuangyang area,and summarized that it was mainly composed of grey-white crystalline limestone with marble,medium-thick layered bioclastics limestone,medium-thick layered limestone with flint nodules and flint strip.It was about 1300 m thick and produces cockroaches,crinoid stems and other fossils.The sedimentary environment of the carbonate platform with the largest extent of sea immersion is determined,and the lithologic association is different from that of other areas in the region.The age is from early Carboniferous to Early Permian.

关 键 词：磨盘山组 岩石组合 沉积环境 双阳地区 

分 类 号：P536[天文地球—古生物学与地层学]