【摘要】 滩间山金矿床位于柴达木地块北缘,产于中元古界万洞沟群碳质糜棱片岩和华力西晚期侵入岩中。矿床是在热水沉积、区域变质和热变质预富集的基础上,与进变型绿片岩相韧性剪切带的退化演化同步,经历了脆韧性、韧脆性和脆性剪切变形成矿阶段的演化并遭受华力西晚期侵入岩浆活动的叠加和改造而形成的,属多因复成矿床。更多还原

【Abstract】 Tanjianshan gold deposit is situated in the northern margin of Qaidam Massifand occurs in the Middle Proterozoic Wandonggou group carbonaceous mylonite schist andLate Variscan intrusive rocks. After the primary mineral enrichment by hydrothermal sedi-mentation, regional metamorphism and thermal metamorphism, synchronized with retrogres-sive evolution of ductile shear zone in greenschist facies, the deposit had undergone mineral-ization stages of brittle-ductile, ductile-brittle and brittle shear deformation, and then super-imposed and transformed by Late Variscan magmatism. So, it belongs to poly-genetic com-posite gold deposit.更多还原