对云南施甸摆榔乡上泥盆统大寨门组和下石炭统香山组的重新厘定  

Redetermination of the Dazhaimen Formation( Upper Devonian) and Xiangshan Formation( Lower Carboniferous) in Bailang,Shidian,Yunnan,China

作　　者：赵光远[1] 刘显凡[1] 邓江红[1] 黄腾[1] 蔡峰[1] 杨雨凡[1] 郑杰[1] 

机构地区：[1]成都理工大学地球科学学院,成都610059

出　　处：《科学技术与工程》2016年第6期129-133,156,共6页Science Technology and Engineering

基　　金：中国地质调查局地调项目(12120113048700);成都理工大学矿物学岩石学矿床学国家重点(培育)学科建设项目(SZD0407)共同资助

摘　　要：小龙塘剖面位于云南省施甸县摆榔乡南东处,地层划分上属于藏滇地层大区东部的保山地层分区,施甸地层小区,奥陶-石炭世沉积普遍发育。剖面测制为一套开阔台地相(潮下带)碳酸盐岩沉积,岩层产状稳定,属单斜地层。与前人在该剖面上所划大寨门组、香山组从岩性上有所不同。根据建组剖面及区域对比,推测小龙塘地区晚泥盆-早石炭世沉积被姚关断裂及湾甸河断裂断蚀。据此,对小龙塘上泥盆统大寨门组和下石炭统香山组进行重新厘定,为1∶50 000湾甸坝幅区域地质矿产调查提供新的参考。Xiaolongtang section is located in the south east of Bailang, Shidian, Yunnan, stratigraphic division belongs to Shidian Stratigraphic Microprovince, Baoshan Stratigraphical Subprovince, Tibetan and Yunnan Stratigraphic Province. And the Ordovician-Carboniferous deposits were widely developed. The measured stratigraphic section shows that it was a carbonate deposition of open platform facies （ subtidal zone） . And the attitude of rock formations is stable, it is monoclinal stratum. Compared with the Dazhaimen Formation and Xiangshan Formation which were divided by predecessors that the lithology are different. Then according to the type sections and regional correlation, the Upper Devonian was conjectured and Lower Carboniferous deposits in Xiaolongtang region were broke down by Yaoguan fault and Wandianhe fault. Based on the study above, the Dazhaimen Formation （Upper Devonian） and Xiangshan Formation （Lower Carboniferous） in Xiaolongtang are redetermined, and this result will provide the latest reference for 1：50 000 Wandianba regional geological survey.

关 键 词：何元寨组 大寨门组 香山组 重新厘定 云南施甸 

分 类 号：P534.44[天文地球—古生物学与地层学]