新疆青河县托库特拜铁矿地质特征及找矿标志

Geological characteristics of iron ore and ore prospecting indicators of Tuokute Xinjiang County of Qinggil

托库特拜铁矿位于玛因鄂博断裂以南,喀拉通克晚古生代岛弧带内。构造单元内地层主要受区域变质作用的影响,变质程度最高可达低绿片岩相。区内侵入岩较为发育,岩石类型从基性至酸性均有出露,但以酸性岩为主。区内为晚石炭世壳源、混源花岗岩类和早二叠世混源花岗岩类。区内变质程度较低,变质作用大致可划分为区域动热变质作用、区域动力变质作用、动力变质作用、接触变质作用及气成水热交代变质作用5种类型。

Tuokute worship of iron ore is located south of MFZ, Kelatongke late Paleozoic island arc zone. The interior layer of the tectonic unit is mainly affected by regional metamorphism, with the highest metamorphic grade reaching low greenschist facies. The intrusive rocks in the area are relatively developed, and the rock types are from basic to acidic, but mainly in acid rock. The Late Carboniferous source and mixed source granite and Early Permian mixed granite are the late carboniferous. Metamorphism in the area is low, and metamorphism can be divided into 5 types： regional dynamic thermal metamorphism, regional dynamic metamorphism, dynamic metamorphism, contact metamorphism and gas forming hydrothermal metasomatism.