东天山康古尔塔格金矿田控矿构造特征

利用构造面理统计、岩组分析和岩石磁化率各向异性参数测量,研究了东天山康古尔金矿田控矿构造的特征。结果表明,金矿田发育一组构造面理,具有典型的对称型岩组图;磁组构特征的变化明显反映出矿田韧性变形具北强南弱的特点;矿田韧性断裂具有压扁应变的特征,磁面理产状与韧性断裂产状相一致。因此,康古尔金矿田韧性断裂应是起源于共轴变形的韧性挤压带。

Characteristics of ore-controlling structures in the Kanggur gold field, East Tianshan, Xinjiang, China

The characteristics of ore-controlling structures in the Kanggur gold field, East Tianshan, Xinjiang, are studied through the statistics of tectonic foliations, magnetic fabric analysis and measurements of anisotropic parameters. The study indicates that in the gold field there occurs one set of foliations with a plot of typical symmetric fabrics. The change of magnetic fabrics reflects that the ductile deformation in the field is strong in the north and weak in the south, the ductile faults have the features of flattening strain and the attitude of the magnetic foliation is consistent with that of the ductile faults. Therefore the ductile faults in the Kanggur gold field originated from co-axial deformation (compression).