贵州瓮安复向斜含铝岩系层序特征及层位归属  

Sequence Characteristics and Horizon Attribution of Aluminum-bearing Rock Series in Weng'an Syncline,Guizhou

作　　者：蒙信礼 马晓旻 刘兴金 梁国礼 李艳桃 施少亿 MENG Xinli;MA Xiaomin;LIU Xingjin;LIANG Guoli;LI Yantao;SHI Shaoyi(The Geophysical and Geochemical Prospecting Team of Non-ferrous Metals and Nuclear Industry Geo-logical Exploration Bureau of Guizhou;The Nuclear Resource Geological Survey Institute of Non-ferrous Metals and Nuclear Industry Geological Exploration Bureau of Guizhou)

机构地区：[1]贵州省有色金属和核工业地质勘查局物化探总队 [2]贵州省有色金属和核工业地质勘查局核资源地质调查院

出　　处：《现代矿业》2022年第4期30-35,共6页Modern Mining

基　　金：贵州省地质勘查基金项目(编号:ZZKC2012-06);中国地质调查局地质调查项目(编号:1212011220419,12120113079400,121201103000150010)。

摘　　要：贵州瓮安复向斜新查明了一批赋存于栖霞组之下的铝土矿,层位归属尚存争议。通过对以往调查资料对比分析指出:前人在该区所获孢粉材料未统计孢粉谱、未建立孢粉图式,达不到进行地层对比的规范要求;已鉴定出的孢粉组分存在多种年轻分子,不足以证明含铝岩组属九架炉组。准确划定层位归属,对铝土矿成矿规律研究、成矿图件编制以及古地理环境、古植物群落、地质构造演化分析等有重要意义。A batch of bauxite deposits under Qixia Formation have been newly identified in Weng'an syncline,Guizhou,and the stratigraphic attribution remains controversial.Through the comparative analy⁃sis of the previous survey data,it is pointed out that the pollen materials obtained in this area by previous researchers have no statistical pollen spectrum and no pollen schema,which cannot meet the specification requirements for stratigraphic correlation.The identified sporopollen components have a variety of young molecules,which is not enough to prove that the aluminous rock group belongs to the nine furnace groups.The accurate delineation of horizons is of great significance to the study of bauxite metallogenic regularity,the compilation of metallogenic maps,and the analysis of paleogeographic environment,paleocommunity and geological structure evolution.

关 键 词：含铝岩系 层位 梁山组 瓮安复向斜 

分 类 号：P618.45[天文地球—矿床学]