| 广西大厂超大型锡多金属矿床成矿条件及成矿模式 |
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| 引用本文： | 廖宗廷.广西大厂超大型锡多金属矿床成矿条件及成矿模式[J].地质找矿论丛,1994,9(2):1-9. |
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| 作者姓名： | 廖宗廷 |
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| 作者单位： | 同济大学海洋地质及地球物理系 |
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| 摘 要： |
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| 关 键 词： | 锡 多金属矿床 成矿条件 成矿模式 |
ON THE METALLOGENIC CONDITION AND MODEL OF DACHANG SUPER Sn POLYMETALLIC DEPOSIT IN GUANGXI |
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| Liao Zongting.ON THE METALLOGENIC CONDITION AND MODEL OF DACHANG SUPER Sn POLYMETALLIC DEPOSIT IN GUANGXI[J].Contributions to Geology and Mineral Resources Research,1994,9(2):1-9. |
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| Authors: | Liao Zongting |
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| Institution: | Department of Marine Geology Tongji University, Shanghai, 200092 |
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| Abstract: | Dachang Sn polymetallic ore deposit is a super sized mineral deposit that occurs in Devonian System in Danchi fracture depression. Its mineralization underwent multistage evolution. It was a product of the superposition of multimineralization under the beneficial tectonics, water-deepness, mineralizing material and physio-chemical conditions. The primary mineralizing materals were developed by sedimentation of continental margin in pre-Devonian Period, The mineralizing basin were formed by crust extension-created creeping tensionin at Varisan Period. The deep magmatism caused by the contemporaneous fractures supplied heat source to drive sea-water convection cycle in which metals in basement rocks were leached out and carried to sea-floor along fractures. They deposited in sea-floor to form bedded orebodies and source beds. Teotonics and magmatic activity that occured in Indosinian-Yanshanian time made the metalls be remobilized, transformed and enriched to form vein orebodies superimposing above bedded orebodies. |
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