安徽伏川蛇绿岩带发现微古植物化石及时代意义  

Discover microflora in the Fuchuan opholite belt and its age significance,Anhui

作　　者：颜铁增 许兴苗 朱朝晖 汪建国 

机构地区：[1]浙江省地质调查院,浙江杭州311203

出　　处：《资源调查与环境》2007年第1期28-32,共5页Resources Survey & Environment

基　　金：中国地质调查局国土资源大调查"1/25万金华市幅(H50C003004)区域地质调查"(项目编号200113000032)资助

摘　　要：本文论述了安徽歙县伏川蛇绿岩带发现的微古植物化石（计有15属19种）和它的时代意义。经统计优势属有：Leiominuscula，Leiofusa，Asperatopsophosphaera，Germinosphaera，Melanocyillum等5属，通过对比和论证，提出了这些化石形成时代为中元古代蓟县纪。结合同位素年龄资料和地质特征的分析研究，推测了伏川蛇绿岩套形成的地质时代在913～963Ma之间。This paper discussied microflora in the ophiolite belt （containing 15genera and 19 species） and its age significance at the Fuchuan village, Shexian County, Anhui province. It is calculated that dominant genera of these microflora have five genera：Leiominuscula, Leiofusa, Asperatopsophosphaera, Germinosphaera,Melanocyillum. Through correlation data and information, the authors suggerst that the age of these microflora is Mesoproterozoic Jixianian. Based on the analysis and study of the geological character and isotope age of opliolitic suite, the authors proposed the opliolitic suite occurred in 913 -963 Ma..

关 键 词：蛇绿岩带 微古植物化石 蓟县纪 安徽伏川 

分 类 号：P534.3[天文地球—古生物学与地层学]