| 论金顶铅锌矿床的地质问题 |
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| 引用本文： | 高广立.论金顶铅锌矿床的地质问题[J].地球科学,1989,14(5):467-476. |
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| 作者姓名： | 高广立 |
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| 作者单位： | China University of Geosciences，Wuhan 430074 |
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| 摘 要： |
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| 关 键 词： | 铅锌矿床 硬石膏岩 蒸发岩 云龙组 |
REVIEW OF GEOLOGICAL ORIGIN ABOUT JINDING LEAD-ZINC ORE DEPOSIT |
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| Gao Guangli.REVIEW OF GEOLOGICAL ORIGIN ABOUT JINDING LEAD-ZINC ORE DEPOSIT[J].Earth Science-Journal of China University of Geosciences,1989,14(5):467-476. |
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| Authors: | Gao Guangli |
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| Abstract: | The study of Jinding lead-zinc deposit has gone further, but some understanding of geological origin about the deposit needs reviewing. The anhydrite deposit is marine evaporite in Triassic, not continental evaporite in Paleocene epoch; the limestone-rubble rock,one of the main ore-holding rock, does not result from the devolution, but from the gypsum-solution and structural process. Not all geologic ages of the strata, which previously were thought to belong to the Yunlong formation ( E1 ), belong to Paleocene epoch. The disorder of the strata in the mining area is caused by the structural process, and can not be explained in terms of sedimentarism; the thrust faulting in the deposit occurred after the evaporation-sedimentation in Paleocene epoch. In the thrust faulting, there are many sliding faces, which are often composed of anhydrocks that act as lubricating layers. |
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| Keywords: | brecciated anhydrock marine evaporite Yunlong formation gyp-sum-solution structure breccia thrust nappe |
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