| 论海平面变化与层控矿床成因 |
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| 引用本文： | 王剑.论海平面变化与层控矿床成因[J].地球科学,1997,22(3):285-292. |
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| 作者姓名： | 王剑 |
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| 作者单位： | 中国地质科学院成都地质矿产研究所 |
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| 摘 要： | 桂北及桂中大瑶山西侧泥盆纪层控型站矿床成因研究表明，矿床形成赋矿盆地的海平面变化密切相关，它们是“层、系、相、位”四位一体主因素地质场作用的结果，这一新的矿床成因新模式可以概括为：区域赋矿层位与层序边界面关系密切，研究区内共划分出７个 序边界面，其中ＳＢ１（Ｉ），ＳＢ３（Ⅲ）及ＳＢ７（Ｉ）是主要的区域性赋 层位；矿体一般产于Ｉ型层序边界面之上，或产于Ⅱ，Ⅲ层序边界面之下；容矿主岩与一定的沉积体系域
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| 关 键 词： | 海平面变化 层控矿床 矿床成因 岩相古地理 |
STRATABOUND DEPOSITS GENESIS RELATED TO SEA-LEVEL CHANGES |
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| Liu Baojun,Wang Jian.STRATABOUND DEPOSITS GENESIS RELATED TO SEA-LEVEL CHANGES[J].Earth Science-Journal of China University of Geosciences,1997,22(3):285-292. |
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| Authors: | Liu Baojun Wang Jian |
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| Abstract: | The stratabound lead zinc deposits in northern and central Guangxi, South China, are closely related to the sea-level changes of the ore impounding basins during geologic time. (1) The regional ore horizons are closely related to the sequence boundaries. (2) The host rocks tend to be associated with some sedimentary systems tracts, which correspond to a certain type of sequence boundary upward or downward. (3) The sedimentary exhalation type (sedex type) stratabound deposits are mainly hosted in the transgressive systems tract during the period of sea level rise. (4) The formation of the ore deposits are closely related to shallow water sedimentary facies. (5) The deposits occur regionally in the deformed marginal zones of sedimentary basins. |
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| Keywords: | stratabound deposits sequence sedimentary systems tracts sedimentary facies and paleogeography |
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