| 广东红岩黄铁矿床的地质特征与成矿机制 |
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| 引用本文： | 蒋明霞. 广东红岩黄铁矿床的地质特征与成矿机制[J]. 地球科学, 1987, 0(4) |
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| 作者姓名： | 蒋明霞 |
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| 作者单位： | Wuhan College of Geology，Wuhan 430074 |
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| 摘 要： | 本矿床形成于成岩晚期,为弱改造层控型。黄铁矿具典型的球粒、胶状和生物交代结构。含矿岩系东岗岭组白云岩含TFe高、Al_2O_3低,并具缝合线和铁白云石等标志。主要控矿因素为古水下隆起、沉积相(礁滩组合)和成岩环境。成矿机制主要与有机物、礁滩沉积以及成岩过程中的白云岩化、退白云岩化和压溶作用有关。
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| 关 键 词： | 广东省 黄铁矿 成矿机制 礁滩沉积 白云岩化 退白云岩化 压溶作用 |
THE GEOLOGICAL CHARACTERISTICS AND MECHANISM OF ORE-FORMING OF HONGYAN PYRITIC DEPOSIT IN GUANGDONG PROVINCE |
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| Jiang Mingxia. THE GEOLOGICAL CHARACTERISTICS AND MECHANISM OF ORE-FORMING OF HONGYAN PYRITIC DEPOSIT IN GUANGDONG PROVINCE[J]. Earth Science-Journal of China University of Geosciences, 1987, 0(4) |
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| Authors: | Jiang Mingxia |
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| Abstract: | Pyrite has been mainly formed at the late diagenetic stage dated about 350 Ma in average. The effect of sedimentary facies and diagenetic environments on ore deposition is analyzed in this paper. Ore textures, such as organic, framboidal colloform and ring band represent the characteristics of the early and late diagenetic stages respectively. Isotope of sulphur, which is derived from oceanic water, and minor elements all reflect the ordinary sedimentary feature. Eventually, the mechanism of ore deposition is analyzed. |
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| Keywords: | Guangdong province pyrite mechanism of ore-forming reef complex dolomitization dedolomitization Press-dissolution |
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