狼山群的层序划分与霍各乞矿区复式倒转向斜的厘定

狼山群遭受了强烈的伸展、挤压、剪切多种变形体制和不同构造层次的变形，其变形构造序列可分为四期。在详实的构造解析以及区域对比基础上，狼山群的地层层序明确为三分，即从下到上分为三个岩组，它们与渣尔泰群的书记沟组、增隆昌组、阿古鲁沟组可以对比。结合构造填图确定狼山北坡霍各乞地区主体构造实为复式倒转向斜。

REESTABLISHING STRATIGRAPHIC SEQUENCE OF LANGSHAN GROUP AND THE DETERMINATION OF HUOGEQI OVERTURNED COMPOSITE SYNCLINE, INNER MONGOLIA

Langshan group,west Inner Mongolia, was successively subjected to strongly extentional,compressional and shear deformation at different structural levels, According to detailed structural analysis and regional correlation,Langshan group could be stratigraphicaly divided into three formations which is correspond to Shujigou, Zenglongchang and Agulogou of Zhaertai group respectively.And furthermore.the principal structural framework OF Huogeqi mining area,north slope of Langshan mountains, is determined as an overturned composite syncline.