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运用定量计算和计算机模拟与传统地质学相结合的方法 ,研究胶东矿集区中剪切构造变形和围岩蚀变与物质迁移及金矿富集的相互关系 .结果表明 ,在剪切 -蚀变作用过程中 ,各种物质组分发生了不同程度的迁移 ,存在较大的流体 /岩石比值 ,体积应变为增加型 .成矿作用发生的最主要原因是剪切挤压 -拉张构造作用引起的成矿元素活化→运移→富集 .成矿早期 ,形成以包体金为主的贫矿石 ;成矿晚期 ,形成含裂隙金和多金属细脉的富矿石 .
The relationship between shear deformation and wall rock alteration, material migration and gold enrichment in Jiaodong ore district is studied by means of quantitative calculation and computer simulation combined with traditional geology.The results show that in the shear-erosion During the change process, various material components migrated to different extents, with larger fluid / rock ratio and increased volumetric strain.The main reason for metallogenesis was shear-compression-tension structure The ore-forming elements are activated → migrated → enriched.At the early stage of metallogeny, the poor ore, which is mainly composed of enclave gold, is formed. In the late stage of metallogenesis, the ore-rich ore with fractured gold and polymetallic fine veins is formed.