伊犁亚板块构造格架与金属矿产区域特征

伊犁亚板块是自元古代发展起来的一个不同时期的裂谷带,被NE和NW向两组构造线左右,及海西期NWW、NNE和SN向构造叠加,构成伊犁亚板块格状、菱格状构造格架。区域主要金属矿产具有明显时空分布特点,受控于时代、岩性、构造和岩浆岩,并分出海相和陆相两个生成系列,对该区主要矿带作了划分,推荐了区域有望找矿靶区。

ILI SUBPLATE TECTONIC PATTERN AND REGIONAL METALLOGENIC FEATURE

Hi subplate was a rifting belt developed from different geological time on the basis of proterozoic basement , and was controlled by two lineament with NE and NW direction and was super imposed by N -S, NNE and NNW Hercynian structure, forming a criss-cross and rhombus type tectonic patterm of Hi sub-plate. The distributive feature in time and space of the major metallic ores was regionally controlled by e-poch, lithic . structure and magmatic rocks, and was divided into two mineralization series: marine - facies and continental-facies. The major minerogenic belt are classified and the prospective target area are delineated in this paper.