| 海南长塘岭矿区大坡岩体岩石学、地球化学特征及其含矿性初探 |
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| 引用本文： | 付山岭,胡斌,龚玉爽,柳智.海南长塘岭矿区大坡岩体岩石学、地球化学特征及其含矿性初探[J].矿物岩石地球化学通报,2012,31(4):369-376. |
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| 作者姓名： | 付山岭 胡斌 龚玉爽 柳智 |
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| 作者单位： | 中南大学地球科学与信息物理学院,有色金属成矿预测教育部重点实验室,长沙410083 |
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| 摘 要： | 海南大坡岩体位于五指山褶皱带内,主要受昌江—琼海构造带、琼西构造带与潭爷断陷构造带控制.岩石地球化学及岩石学研究表明,大坡岩体形成于海西-印支晚期,岩性单一,主要为中细粒似斑状黑云母二长花岗岩.岩体显示为Ⅰ型花岗岩与S型花岗岩的混合,主体以地壳物质部分熔融为主,形成过程有少量地幔物质加入.元素对的比值及稀土元素配分特征说明岩体钨锡等多金属含矿性可能较差.
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| 关 键 词： | 大坡岩体 岩石学 地球化学 含矿性 海南 |
Petrology,Geochemistry,Ore-bearing Potential of the Dapo Lithosome in the Changtangling Mine Region,Basha County,Hainan |
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| FU Shan-ling
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HU Bin
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GONG Yu-shuang
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LIU Zhi.Petrology,Geochemistry,Ore-bearing Potential of the Dapo Lithosome in the Changtangling Mine Region,Basha County,Hainan[J].Bulletin of Mineralogy Petrology and Geochemistry,2012,31(4):369-376. |
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| Authors: | FU Shan-ling HU Bin GONG Yu-shuang LIU Zhi |
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| Institution: | Key Laboratory of Metallogenic Prediction of Nonferrous Metals,Ministry of Education School of Geosciences And Info-Physics,Central South University,Changsha,410083 China |
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| Abstract: | The Dapo lithosome locates in the Fingers fold belt which is constrained jointly by Changjiang-Qionghai tectonic belt,Qiongxi tectonic belt.Geochemical and petrographic characteristics of the rock show that the Dapo rock formed during late Hercynian-Indosinian and is dominated by single lithology of the medium-fine grain porphyritic biotite monzogranites.In genesis,the Dapo lithosome shows mixed characteristics of I-and S-type granitoids,implying that the Dapo lithosome was formed by partial melting of the lower crust and by involving of a small amount of mantle material during the melting.Ratios of different elements and REE distribution characteristics,such as high ratio,REE distribution patterns of right type,Eu moderate loss and so on,show that the ore-bearing potential of W-Mo and other elements in the Dapo lithosome is probably poor. |
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| Keywords: | dapo lithosome petrology geochemistry ore-bearing potential Hainan |
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