论文部分内容阅读
一、区域构造形迹 乌鲁木齐位于奇台山字型前弧西翼反射弧外侧末端与天山北西西向构造体系的复合部位。两者反接复合大致在乌鲁木齐市的西山和喀拉扎山一带。其主要构造形迹: 属于反射弧范围的有:轴向北东东的七道湾背斜Ⅰ,七道湾向斜Ⅱ,妖魔山倒转倾伏背斜Ⅲ,乌鲁木齐箱状倾伏向斜Ⅳ。前两个背向斜出露地层为侏罗系招泽一湖泊相含煤建造。后两个背向斜出露地层由上石炭统滨海相碎屑岩,二叠系泻湖相砂页岩夹白云岩,白云质灰岩及三叠系内陆湖盆相砾岩,砂岩,泥
First, the regional tectonic memorial Urumqi is located in the front part of the Qitai Shan fonts before the western arc reflex arc and the Tianshan Mountains north-west-west structural system of the composite parts. The reverse combination of the two roughly in the western mountains and the Kelazhan area of Urumqi. The main structural features: belong to the scope of the reflection arc are: the seven northeast of the east axis of the Seven Bays anticline Ⅰ, seven bays Bay anticline Ⅱ, the demons Mountain inverted anticline anticline Ⅲ, Urumqi box-shaped dip anticline Ⅳ. The first two back-out syncline formations are Jurassic-chaetic-lacustrine facies coal-bearing formations. The last two back-out dip strata are composed of Upper Carboniferous marine clastic rocks, Permian lacustrine facies sand shale intercalation dolomite, dolomitic limestone and Triassic inland lake basin conglomerate, sandstone and mud