| 兰坪-思茅盆地的构造-古水文地质条件及其成矿作用 |
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| 引用本文： | 孙由政,孙世雄.兰坪-思茅盆地的构造-古水文地质条件及其成矿作用[J].成都理工大学学报(自然科学版),1990(3). |
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| 作者姓名： | 孙由政 孙世雄 |
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| 作者单位： | 云南地质矿产局职工大学
(孙由政)，成都地质学院水文工程系(孙世雄) |
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| 摘 要： | 兰坪-思茅盆地为弧后裂谷盆地,其形成与演化历史可分为裂谷期、地堑期、堑沟期和回返期,盆地分为7个构造-古水文地质期。着重研究了盆地古新世时古水动力场和古水文地球化学场,指出沉积水初始迁移阶段的成矿作用主要是在沉积承压水系统区与渗入木承压水系统之间的过渡层状压力带。特大型兰坪金顶铅锌矿就位于此带上。
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| 关 键 词： | 盆地 构造-古水文地质条件 裂谷 古水动力场 古水文地球化学场 成矿作用 |
THE STRUCTURE-PALEOHYDROGEOLOGY AND MINEROGENESIS OF LANPING-SIMAO BASIN |
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| Sun Youzheng,Sun Shixiong.THE STRUCTURE-PALEOHYDROGEOLOGY AND MINEROGENESIS OF LANPING-SIMAO BASIN[J].Journal of Chengdu University of Technology: Sci & Technol Ed,1990(3). |
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| Authors: | Sun Youzheng Sun Shixiong |
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| Institution: | Sun Youzheng;Sun Shixiong |
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| Abstract: | Lanping-Simao Basin is a back-are rift basin. It can be divided into rift stage,graben stage and return stage from its history or formation and evolution. It is divided intoseven structure-palcohydrogcology periods. The ancient hydrodynamic field andpaleohydrogeochemical field in Palaeocene are studied. It is pointed out that minerogenesisoccurring during the initial transportation stage of sedimentary water took place at the tran-sition stratified zone between system or sedimentary confined water and system ofseepage pressure water. Extremely big Jinding Lead-Zine Deposit in Lanping also lies inthis zone. |
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| Keywords: | basin struetural-palcohydrogeological condition rift ancient hydrodynamic field palcohydrogeochemical field minerogenesis |
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