| 甘肃西成铅锌矿田中泥盆统碳酸盐沉积相的初步研究 |
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| 引用本文： | 武安斌,宋春晖.甘肃西成铅锌矿田中泥盆统碳酸盐沉积相的初步研究[J].甘肃地质学报,1993,2(1):25-34,T003. |
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| 作者姓名： | 武安斌 宋春晖 |
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| 作者单位： | 兰州大学地质系，兰州大学地质系 兰州 730000，兰州 730000 |
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| 摘 要： | 本文根据岩石类型、沉积构造、生物组合和指相矿物将西成矿田中泥盆统碳酸盐沉积划分为两个相带,7个相和11个亚相,即碳酸盐台地相带和碳酸盐台地边缘相带;台地潮坪相、局限台地相、半开阔台地相、开阔台地相、台缘前斜坡相、生物滩层礁相和礁相。可以看出,区内铅锌矿床的形成和分布明显受着碳酸盐沉积相带的控制。
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| 关 键 词： | 西成矿田 碳酸盐岩 沉积相 |
A PRELIMINARY STUDY ON THE CARBONATE SEDIMENTARY FACIES OF THE MIDDLE DEVONIAN IN XICHENG ORE-FIELD, GANSU |
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| Wu Anbin Song Chunhui.A PRELIMINARY STUDY ON THE CARBONATE SEDIMENTARY FACIES OF THE MIDDLE DEVONIAN IN XICHENG ORE-FIELD, GANSU[J].Acta Geologica Gansu,1993,2(1):25-34,T003. |
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| Authors: | Wu Anbin Song Chunhui |
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| Institution: | Wu Anbin Song Chunhui (Department of Geology,Lanzhou University, Lanzhou 730000) |
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| Abstract: | based on the lithological type ,sedimentary structures,biota and index mineral,the carbonate sedimentary facies of middle Devonian in Xicheng ore-field can be divided into two facies zones,seven facies and eleven subfacies:carbonate platform tidal flat facies, restricted platform facies, hemiopen platform facies, open platform facies, platform marginal shoal-slope facies, organic beach- stratigraphical reef facies and organic reef facies.
It may be seen that the formation and distribution of pb-Zn ore deposit were controled predominatly by the carbonate sedimentary facies zones. |
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| Keywords: | Xicheng ore-field Carbonate rock Sedimentary fades |
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