| 青海滩间山金矿床地质特征 |
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| 引用本文： | 于凤池,魏刚锋,孙继东,王永祥,梅安静.青海滩间山金矿床地质特征[J].青海国土经略,1997(1). |
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| 作者姓名： | 于凤池 魏刚锋 孙继东 王永祥 梅安静 |
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| 作者单位： | 西安地质学院
(于凤池，魏刚锋，孙继东)，青海地勘局
(王永祥)，青海地勘局(梅安静) |
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| 基金项目： | 地矿部定向科研项目(直科定-92～35)成果的一部分 |
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| 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。
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| 关 键 词： | 韧性剪切带 碳质糜棱片岩 滩间山金矿 |
GEOLOGICAL CHARACTERISTICS OF TANJIANSHAN GOLD DEPOSIT,QINGHAI |
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| 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. |
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| Keywords: | ductile shear zone carbonaceous mylonite schist Tanjianshan gold deposit |
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