内蒙古阿木山组  

Amushan Formation in Inner Mongolia

作　　者：张玉清[1] 张婷[2] 

机构地区：[1]内蒙古自治区地质调查院,内蒙古呼和浩特010020 [2]中国农业大学信息与电气工程学院,北京100083

出　　处：《中国地质》2016年第3期1000-1015,共16页Geology in China

基　　金：中国地质调查局项目"内蒙古区域地质调查与片区总结"(12120113013200)资助~~

摘　　要：阿木山组自建组以来就被广泛应用,20世纪曾是内蒙地槽区上石炭统的代名词,随着地质研究程度的不断提高,大地构造单元的划分、地层区划等也在发生变化。通过区域资料的综合研究,现认为阿木山组是华北板块北部晚古生代大陆边缘的沉积产物,出露区只限于索伦—西拉木伦河断裂以南,形成时代为晚石炭世至早二叠世(C_2-P_1),灰岩层内富含蜓、珊瑚等化石。其与三面井组是同一地层区不同地层分区的产物。The Amushan Formation has been widely used since its founding. It was once synonymous with the Upper Carboniferous of Inner Mongolia geosyncline zone in the last century. With the improvement of geological research, the subdivision of tectonic units, stratigraphic regionalization and other changes have also occurred. Based on a comprehensive study of regional data, the authors hold that the Amushan Formation is the deposition production of the northern Late Paleozoic continental margin of North China plate, and the outcropped areas are restricted to south of Solon- Siramulen River fault. It was formed during the upper Carboniferous- Lower Permian period(C_2-P_1), and its limestone layer is rich in fusulinids, corals and other fossils. The Amushan Formation and the Sanmianjing Formation are products of different stratigraphic subdivisions in the same stratigraphic region.

关 键 词：阿木山组 晚石炭世-早二叠世 华北板块 内蒙古 

分 类 号：P534.45[天文地球—古生物学与地层学]