| 高辉.金川铜镍矿床成矿模式、控矿因素分析与找矿[J].地质与勘探,2009,45(3):218-228 |
| 金川铜镍矿床成矿模式、控矿因素分析与找矿 |
| An Analysis on Metallogenetic Model and Ore鄄control Factors of Jinchuan Cu鄄Ni (PGE) Magmatic Sulfide Deposit and Its Exploration Implications |
| 投稿时间：2009-02-01 修订日期：2009-04-01 |
| DOI： |
| 中文关键词: 金川铜镍矿 成矿模式 同源岩浆控制 后期构造控制 找矿 |
| 英文关键词: Jinchuan Cu鄄Ni (PGE) magmatic sulfide deposit,metallogenetic model, syn鄄magmatic controls,later structural control,exploration |
| 基金项目:国家科技支撑计划课题(编号:2006BAB01A07,2006BAB01B05)资助。 |
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| 中文摘要: |
| [摘要]金川岩浆Cu鄄Ni鄄PGE 硫化矿床与世界上其它几个大型硫化铜镍矿相比,具有矿化比例极
高,岩体的岩相分带和矿体产状与原地熔离机制不协调等地质和成因特点。论文通过对金川铜镍矿地
质构造及矿化特征、成矿模式系统分析,指出金川铜镍硫化物矿床形成和定位的主要控制因素表现为:
同源岩浆控制和后期构造控制。侵入体成矿后期的构造变形对矿化的控制主要表现在对侵入体形态产
状的改变,并影响到矿区深部、外围及区域矿化及分布特征,因而对矿区深部、外围及区域找矿具有指示
意义。据此提出了矿区深部、外围及区域找矿新思路,并在矿床外围及区域与龙首山隆起平行的金川超
镁铁岩带确定了两个勘探靶区—金川东延靶区和金川远东靶区。 |
| 英文摘要: |
| Abstract:Compared with several other large Cu鄄Ni (PGE) magmatic sulfide deposits around the world, Jinchuan Cu鄄Ni (PGE) magmatic sulfide
deposit has some special geological characteristics and metallogenetic features: there is extreme larger proportion of sulfide mineralization in ultramafic
rocks, and lithofacies zones of the host magma differrentiation and geometry of the orebody are inconsistent with in situ magma segregation mechanism. In
this paper, geological and mineralization characteristics and metallogenetic model of Jinchuan Cu鄄Ni (PGE) magmatic sulfide deposit are systematic stud鄄
ied and summarized, and the research results show that syn鄄magmatic controls and later structural controls are two key factors to control ore鄄forming and
position of mineralization. Later stage structural deformation on the distribution of mineralization is prominently considered to have affected the geometry of
the intrusion and related mineralization in deep orebodies, near鄄mine and district scales. It has important implications for near鄄mine exploration and re鄄
gional prospecting in Jinchuan area. Based on the study and new research conclusion, two significant conceptual targets have been identified: Jinchuan
Eastern Extension (8km belt) and Jinchuan Far East (30km belt) in near鄄mine and Jinchuan ultramafic intrusions belt which is a structure鄄controlled
zone parallel to the main Longshoushan uplift trend. |
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