| 云南富宁弄楼岩体岩相特征及成矿阶段划分 |
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| 引用本文： | 黄庆,李波,周文龙,刘明.云南富宁弄楼岩体岩相特征及成矿阶段划分[J].矿产综合利用,2013(4). |
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| 作者姓名： | 黄庆 李波 周文龙 刘明 |
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| 作者单位： | 昆明理工大学国土资源工程学院地球科学系;昆明理工大学国土资源工程学院地球科学系;昆明理工大学国土资源工程学院地球科学系;昆明理工大学国土资源工程学院地球科学系 |
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| 摘 要： | 富宁弄楼岩体由边缘向中心依次为致密的辉绿岩相一中细粒橄榄辉长苏长岩相一细粒辉长苏长岩相一中细粒岗纹辉长岩相一中粗粒岗纹闪长岩相。基性一超基性岩浆岩是区内铜镍矿床的母岩,具有良好的分异现象。弄楼铜镍矿床中硅酸盐矿物主要为橄榄石、辉石,少量斜长石和角闪石,极少量的云母、方解石,金属硫化物为磁黄铁矿、镍黄铁矿、黄铜矿、磁铁矿,还含有少量的钛铁矿和方铅矿。结合矿石矿物组合及结构构造、矿体产出特征等研究,矿床形成主要经历了岩浆成矿期-构造-变质热液成矿期,而岩浆成矿期又分为早期岩浆熔离-结晶分异阶段-岩浆晚期成矿阶段-矿浆贯入成矿阶段-岩浆期后热液成矿阶段。矿床为岩浆熔离-结晶分异,后期热液叠加形成的矿床。
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| 关 键 词： | 岩相 矿物 成矿期 成矿阶段 |
Longlou rock petrographic characteristics and division of metallogenic epoch and stage of mineralization of Funing in Yunnan |
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| Huang Qing,Li Bo,Zhou Wenlong and Liu Ming.Longlou rock petrographic characteristics and division of metallogenic epoch and stage of mineralization of Funing in Yunnan[J].Multipurpose Utilization of Mineral Resources,2013(4). |
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| Authors: | Huang Qing Li Bo Zhou Wenlong and Liu Ming |
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| Affiliation: | Department of Earth Sciences, Faculty of Land and Resources Engineering, Kunming University of Science and Technology;Department of Earth Sciences, Faculty of Land and Resources Engineering, Kunming University of Science and Technology;Department of Earth Sciences, Faculty of Land and Resources Engineering, Kunming University of Science and Technology;Department of Earth Sciences, Faculty of Land and Resources Engineering, Kunming University of Science and Technology |
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| Abstract: | Longlou rock of Funing Yunnan from the edge to center is dense diabase phase - the fine grained olive gabbronorite phase-the fine grained thin grain gabbro phase- the coarse grain diorite phase.Basic-ultrabasic magmatic rock is the copper and nickel ore deposits in the parent rock,which has good phenomenon of differentiation . Silicate minerals of Longlou copper nickel deposit mainly concludes peridot augite, a small amount of plagioclase and amphibole, and very small amounts of mica calcite. Metal sulfide concludes magnetic pyrite pentlandite chalcopyrite magnetite, still contain a small amount of ilmenite and galena. Combined with ore mineral composition and structure characteristics of ore output, deposit formed mainly experienced magma metallogenic period - structure - metamorphic hydrothermal ore-forming period, and magma metallogenic period is divided into early magmatic differentiation stage - crystal magma late metallogenic phase - pulp penetration metallogenic stage - magmatic hydrothermal mineralization stage . Deposit for magmatic differentiation from - crystallization, late hydrothermal superimposed formation of ore deposits. |
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