| 东川滥泥坪-白锡腊铜矿区稀矿山式铁铜矿矿石地球化学特征及其成因 |
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| 引用本文： | 刘卫明,刘继顺,刘文恒,杨立功,周余国,董新.东川滥泥坪-白锡腊铜矿区稀矿山式铁铜矿矿石地球化学特征及其成因[J].世界地质,2012,31(2):281-289. |
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| 作者姓名： | 刘卫明 刘继顺 刘文恒 杨立功 周余国 董新 |
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| 作者单位： | 1. 中南大学地球科学与信息物理学院，长沙410083; 2. 江西理工大学资源与环境工程学院，江西赣州341000; 3. 云南大学资源环境与地球科学学院，昆明650051; 4. 甘肃省有色地质勘查局，兰州730000 |
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| 基金项目： | 云南省省院省校合作项目 |
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| 摘 要： | 在比较滥泥坪-白锡腊铜矿区因民组地层的基础上，厘定了因民组稀矿山段在本区的存在，认为具有含矿性，并在有利地段布设了探矿工程。对揭露矿体的矿石地球化学特征分析比较表明，矿石 ( K2O + Na2O) 含量、K2O/Na2O 值与因民矿区类似，矿石稀土元素总量为( 55. 94 ～ 367. 72) × 10-6， ( La /Yb) N = 5. 09 ～ 67. 57，LREE 富集，铕异常( 1. 69 ～ 5. 18) ，与现代大洋底热液稀土元素具相同的特征，表明成矿流体为深部高温、还原性质。
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| 关 键 词： | 因民组 稀矿山式铁铜矿 找矿前景 滥泥坪 白锡腊 东川 |
Ore geochemical characteristics and genesis of Xikuangshan type Fe-Cu deposit in Lanniping-Baixila copper mine of Dongchuan |
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| LIU Wei-ming
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LIU Ji-shun
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LIU Wen-heng
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YANG Li-gong
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ZHOU Yu-guo
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DONG Xin.Ore geochemical characteristics and genesis of Xikuangshan type Fe-Cu deposit in Lanniping-Baixila copper mine of Dongchuan[J].World Geology,2012,31(2):281-289. |
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| Authors: | LIU Wei-ming LIU Ji-shun LIU Wen-heng YANG Li-gong ZHOU Yu-guo DONG Xin |
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| Institution: | 1. School of Geosciences and Info-Physics，Central South University，Changsha 410083，China; 2. Faculty of Resources and Environmental Engineering，Jiangxi University of Science and Technology， Ganzhou 341000，Jiangxi，China; 3. School of Resources Environment and Earth Science，Yunnan University，Kunming 650051，China; 4. Gansu Non-ferrous Metal Geological Exploration Bureau，Lanzhou 730000，China |
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| Abstract: | On the basis of the correlation of Yinmin Formation from Lanniping-Baixila copper mine area, the authors confirmed the existence of Xikuangshan type deposit in the studied area, and designed mineral exploration engineering in favorable sectors. Analysis and comparation of geochemical characteristics of the exposed orebody revealed that （K2O ＋ Na20） contents and K2O/Na2O ratio of ores are similar to in Yinmin mine area. REE contents are （55.94- 367.72）× 10^-6, （La/Yb）N = 5.09 -67.57 with strong enrichment of LREE and positive Eu anomaly. The REE characteristics are similar to hydrothermal solution of modern ocean floor, which shows that oreforming fluid was in deep high-temperature with deoxidation nature. |
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| Keywords: | Yinmin Formation Xikuangshan type Fe-Cu deposit prospecting potential Lanniping Baixila Dongchuan |
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