安徽南部早石炭世岩关早期古地理分析  

Palaeogeographic analysis of the southern Anhui in the early Yanguan time of the early Carboniferous epoch

作　　者：李三[1] 夏军[2] LI San;XIA Jun(No.327 Unit,Bureau of Geology and Mineral Exploration of Anhui Province,Hefei,Anhui 230011,China;Geological Survey of Anhui Province(Institute of Geological Sciences of Anhui Province),Hefei,Anhui 230001,China)

机构地区：[1]安徽省地质矿产勘查局327地质队,安徽合肥230011 [2]安徽省地质调查院(安徽省地质科学研究所),安徽合肥230001

出　　处：《安徽地质》2025年第1期1-5,9,共6页Geology of Anhui

基　　金：中国地质调查局科技项目“安徽省地质系列图件编制与综合研究”(编号:1212011120123)资助。

摘　　要：安徽南部自岩关早期地层确立之后,古地理展布一直不清,本文明确了张八岭丘陵、江南山地的存在,并划分了湖泊三角洲、湖沼、浅湖、深湖等亚相,重塑了该时期古地理环境特征。沉积环境表明:擂鼓台组含煤岩系仅发育于湖沼亚相及湖泊三角洲亚相中,两亚相区是地方开采煤的有利场所;黏土矿主要富集于湖沼亚相及深湖亚相,且质量由北而南有变差的趋势。The paleogeography has always been in doubt since the stratum of the early Yanguan time was determined in southern Anhui,where this paper asserts the existence of the Zhangbaling hills and the Jiangnan mountains and makes divisions of lake delta,lake marsh,shallow lake and deep lake,which reconstruct the paleogeographic environment features of that time.The sedimentary environment shows that the coal measures of the Leigutai Formation only develop in the lake marsh subfacies and lake delta subfacies,which are favorable to coal mining in the local areas.Clay deposits are concentrated in lake marsh subfacies and deep lake subfacies,and the quality of clay declines from north to south.

关 键 词：古地理 岩关早期 安徽南部 

分 类 号：P531[天文地球—古生物学与地层学]