云南省石炭纪-二叠纪岩石地层的划分与对比  

STRATIGRAPHIC DIVISION AND CORRELATION OF THE CARBONIFEROUS AND-PERMIAN IN YUNNAN PROVINCE

作　　者：王学武 瞿亮 严城民[2] 王长兵 张子军 朱琳 WANG Xue-wu;QU Liang;YAN Cheng-min;WANG Chang-bing;ZHANG Zi-jun;and ZHU Lin(No.209 Geological Party,Geological Bureau of Yunnan Nuclear Industry,Kuming 650032;Regional Geological Survey Party,Yunnan Bureau of Geology and Mineral Resources,Kunming 653100)

机构地区：[1]云南省核工业二0九地质大队,云南昆明650032 [2]云南省地矿局区域地质矿产调查大队,云南玉溪653100

出　　处：《地层学杂志》2018年第4期461-467,共7页Journal of Stratigraphy

基　　金：中央地质勘查基金项目“云南省维西县海尼地区铀矿普查”(2013531002).

摘　　要：云南省岩石地层多使用《云南省岩石地层》的划分方案。该划分方案的石炭系与二叠系,与《中国区域年代地层表》、《中国地层表》的划分方案有明显差别。为此,在充分搜集、研究云南省岩石地层划分方案及其相关资料的基础上,结合多年进行不同比例尺区域地质调查、矿产勘查的认识,重新厘定了云南省石炭纪与二叠纪岩石地层的划分对比方案。在重新厘定的划分对比方案中:(1)上二叠统的底界不变,与南皮河组(P3n)、沙木组(P3sm)、羊八寨组(P3y)、奔子栏组(P3b)的底界相当;(2)三分方案的中二叠统底界相当于二分方案的下二叠统底界,与大东厂组(P2dd)、丙麻组(P2bm)、大名山组(P2d)、拉巴组(P2l)、吉东龙组(P2j)、大新山组(P2dx)、喀大崩组(P2k)、冰峰组(P2b)、阳新组(P2y)、梁山组(P2l)、岩头组(P2yt)的底界相当;(3)下二叠统与上石炭统的分界位于石炭系三分方案的上石炭统中下部,与空树河组(P1k)、丁家寨组(P1d)、他披组(P1t)的底界相当;(4)上石炭统与下石炭统的分界位于石炭系三分方案的下石炭统上部,与铺门前组(C1p)、平掌组(C1pz)、申洛拱组(C1s)、大羊场组(C1d)的顶界相当。在《云南省岩石地层》(云南省地质矿产局, 1996)出版之后,充分吸收近年来1∶25万、1∶5万区域地质调查的新资料新成果,石炭纪与二叠纪岩石地层增加了嘎拉博岩组(Cg)、丹珠岩组(Cdz)、义产独岩组(Cy)、张家田组(C1z)、木星土组(P1mx)、洛吉组(Plj)。The lithostratigraphic division in Yunnan Province is mostly based on ＂Llithostratigraphy of Yunnan Province＂ edited by Yunnan Provincial Geological Prospecting Bureau. The lithostratigraphic division of Car- boniferous and-Permian in Yunnan Province has some differences from the China Regional Chronostmtigraphic Table and the China Stratigraphic Table. This study aims lithostratigraphy Yunnan Province, based on many years at a reclassification of the Carboniferous-Permian of regional geological survey and mineral exploration. This study reaches the following conclusions and recommendations. First, the lower boundary of the Upper Permian is the same as that of the Nanpihe Group（P3n）, Shamu Group（P3sm）, Yangbazhai Group（P3y）, and Benzilan Group（P3b）. Second, the lower boundary of the Middle Permian in the reipartite scheme is the same as the lower boundary of Lower Permian boundary in the bipartite scheme, and this boumdary is placed at the base of the Dadongchang Group（P2dd）, Bingma Group（P2bm）, Damingshan Group（P2d）, Laba Group（P2/）, Ji- donglong Group（Pzj）, Daxinshan Group（P2dx）, Kadabeng Group（P2k）, Bingfeng Group（P2b）, Yangxin Group（P2y）, Liangshan Group（Pz/）and Yantou Group （P^t）. Third, the boundary between Lower Permian and Upper Carboniferous is located in the lower-middle part of the Upper Carboniferous in the tripartite scheme, and this boundary is the same as the basal boundary of the Kongshuhe Group（Plk）, Dingjiazhai（Pld） and Tapi Group（Pit）. Fourth, the lower-upper Carboniferous boundary is in the upper Lower Carboniferous in the tripartite scheme, and is equivalent to upper boundary of the Pumenqian Group（Clp）, Pingzhang Group（Clpz）, Shenluogong Group（ClS）, Dayangchang Group （Cld）. Following the Lithostratigraphy of Yunnan Province and based on new data from recent of 1 ： 250 000 and 1 ＂ 50 000 geological mapping projests, the lithostratigraphy of Carboniferous and Permian in Yunnan Province has been revi

关 键 词：石炭系-二叠系 岩石地层 年代地层 划分与对比 云南省 

分 类 号：P534.45[天文地球—古生物学与地层学] P534.46[天文地球—地质学]