| 牟乳石英脉型金矿成矿构造地球化学实验研究 |
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| 引用本文： | 高太忠,魏广庆,吴学益,杨元根.牟乳石英脉型金矿成矿构造地球化学实验研究[J].地质找矿论丛,1998,13(1):13-23. |
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| 作者姓名： | 高太忠 魏广庆 吴学益 杨元根 |
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| 作者单位： | [1]河北科技大学 [2]冶金部第三勘查局 |
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| 摘 要： | 牟乳金矿带位于华北克拉通东缘的胶北花岗岩－绿岩地体东部活化区。区内元古宙荆山群绿岩建造是金的矿源层。北北东向断裂为主要控矿控矿构造。金矿床主要为含金硫化物石英脉型。金的成矿作用与一定的构造－热－动力事件相联系。根据成矿特征和物理化学条件，作者进行了成矿构造地球化学实验。实验表明：分散在黄铁矿中的Ａｕ等成矿元素在高温高压（剪）应力作用下，产生迁移。金的迁移可以固态纳米金形式及在化学迁移作用下进行。在
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| 关 键 词： | 金矿床 石英脉型 成矿构造 地球化学 实验研究 |
| 收稿时间： | 1997/10/24 0:00:00 |
| 修稿时间： | 1997/11/18 0:00:00 |
AN EXPERIMENTAL STUDY ON METALLOGENETICTECTONO-GEOCHEMISTRY OF THE QUARTZ VEIN TYPE GOLD DEPOSITS IN MUPING-RUSHAN GOLD METALLOGENIC BELT |
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| Gao Taizhong,Wei Guangqing,Wu Xueyi and Yang Yuangen.AN EXPERIMENTAL STUDY ON METALLOGENETICTECTONO-GEOCHEMISTRY OF THE QUARTZ VEIN TYPE GOLD DEPOSITS IN MUPING-RUSHAN GOLD METALLOGENIC BELT[J].Contributions to Geology and Mineral Resources Research,1998,13(1):13-23. |
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| Authors: | Gao Taizhong Wei Guangqing Wu Xueyi and Yang Yuangen |
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| Institution: | Northeastern University at Qinhuongdao, 066004;The Third Geological Exploration Bureau, MMI, 030002, Taiyuan;Institute of Geochemictry, Academia Sinica, 550002, Guiyang;Northeastern University at Qinhuongdao, 066004;The Third Geological Exploration Bureau, MMI, 030002, Taiyuan;Institute of Geochemictry, Academia Sinica, 550002, Guiyang;Northeastern University at Qinhuongdao, 066004;The Third Geological Exploration Bureau, MMI, 030002, Taiyuan;Institute of Geochemictry, Academia Sinica, 550002, Guiyang;Northeastern University at Qinhuongdao, 066004;The Third Geological Exploration Bureau, MMI, 030002, Taiyuan;Institute of Geochemictry, Academia Sinica, 550002, Guiyang |
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| Abstract: | Muping-Rushan gold metallogenic belt is located in the activated region of Jiaodong granite-greenstone terrain of eastern margin of North China Craton. Lower Proterozoic Jingshan Groupgreenstone formation is the source bed of the gold mineralization in this region. Spatial distribu- tion of gold deposits is controlled by the NNE faults. Gold ore is geneticall associated with somespecial events of structure-heat-dynamics. Tectonogeochemical experiments were conductedbased on physicochemical conditions of nuneralization. The resuIts indicate that gold and other el-ements, scattered in pyrities were activated and migrated under compressive and/or shear stressat high temperature. The gold may migrate in solid form of micron-size gold or in form of chemi-cal migration. Gold in resldual fluld precipitated and concentrated around a core of micron-sizegold in the microcrack forn1ed by tensile force. The experiments provides direct evluence for theexplanation of the forn1ation of gold between crystals and intracrystal crack and they were alsoaccount for the variation gold grade coefficient in most gold deposits. |
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| Keywords: | Quartz vein type Au deposit tectonogeochemical experiments Muping-Rushan gold ore belt Shandong |
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