浅析东天山大水锰矿地质特征及矿床成因

Geological characteristics and genesis of the big water manganese deposit in the eastern Tianshan Mountains

塔里木板块偏北方向的缘头部位则是该矿的大致构造所在,该区属于北山古生代裂谷系红柳河晚古生代裂谷带。区内主要出露有下震旦统、下寒武统、志留系及二叠系。自震旦纪以来,区内经历了多次构造活动。该去的断裂构造主要呈现东西向进行展布,造成如此构造特征的原因,与区内呈挤压特征的南北向构造应力场存在非常大的联系。该区的主要断裂构造为红柳河断裂,其展布方向主要呈现北东东向,性质呈现逆断层特征,形成次级构造单元的分界线。区内发育有明显的褶皱特征,有的为复向斜,有的复背斜。目前在该区已经发现了一大批锰矿床,显示该区巨大的找矿潜力。文中对该矿地质特征进行分析和探讨,总结矿床成成因,旨在为该区找矿提供参考。

The northern edge of the Tarim plate is the general structure of the ore, which belongs to the late Paleozoic rift zone of the red willow river in the Paleozoic rift system of the north mountain. There are lower Sinian, lower Cambrian, Silurian and Permian in the area. Since Sinian period, there have been many tectonic activities in the area. The fault structures are mainly distributed in the east-west direction, and the cause of such structural features is very closely related to the tectonic stress field of the north-south direction in the region. The main fault structure in this area is the red Liuhe River fault, and its distribution direction is mainly North East and East, the character presents the reverse fault feature and forms the dividing line of the secondary structural unit. There are obvious folds in the area, some of them are syncline and some anticlinal ones. At present, a large number of manganese deposits have been discovered in the area, showing the great prospecting potential in this area. The geological characteristics of the deposit are analyzed and discussed, and the genesis of the deposit is summarized, so as to provide references for prospecting in this area.