| 安徽庐枞盆地硫铁矿床地质特征及控矿因素 |
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| 引用本文： | 刘昌涛.安徽庐枞盆地硫铁矿床地质特征及控矿因素[J].化工矿产地质,1994(3). |
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| 作者姓名： | 刘昌涛 |
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| 作者单位： | 化学工业部化学矿产地质研究院 |
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| 摘 要： | 庐枞盆地为一陆相火山岩盆地，成硫与中—中基性富碱打质火山—次火山岩活动有关，受岩侵型火山隆起、断裂及接触带构造控制，矿体主要产于粗安玢岩顶部及侏罗系上统龙门院组和砖桥组火山岩中，次为前火山岩系碳酸盐岩和钙质碎屑岩中。硫铁矿常与铁、铜、硬石膏等矿产共生或伴生，形成综合型矿床。硅化等热液蚀变与矿化关系密切，为找矿的重要标志。
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| 关 键 词： | 庐枞盆地，硫铁矿，火山岩 |
GEOLOGICAL CHARACTERS AND ORE-CONTROLLING FACTORS OF THE PYRITE DEPOSITS IN LUZONG BASIN,ANHUI |
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| Abstract: | Abstract Luzong basin,a continental volcanic basin,owes its pyritizations to the activities of intermediate to lessly basic, potassium-rich, volcanic to subvolcanic rocks with controls on the mineralizations of volcanic doming, faulting and figurating of the concoct beltS. Ore bodies rest mostly on the top of trachytic andesitic porphyrite fscies, in the volcanic rocks of late Jurassic Longmenyuan and Zhuanqiao formations and,less likely,in pre-volcanic carbonate and limeclastic successions. Pyrite minerals are very often found to coexsist with or to be accompanied by iron,copper,anhydrite and so on, leading to a composite occurence of mineralization. Close relationship between such hydrothermal alterations as silication and pyritization may be regarded as important clues to prospecting for this kind of deposit. |
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