投稿时间：2011-07-04
修订日期：2011-09-16
中文摘要:在甘肃省金川矿区利用磁法、可控源音频大地电磁法及地震P波层析方法进行了深部探测,几种方法综合研究确定了到达2 500 m以上高阻高速体的岩浆源特征,指出了岩浆上涌到达浅部向两侧扩展的近水平的透镜状分支,作为可能的深部含矿超基性岩体与钻孔已见矿体位置相吻合,为金川铜镍矿床的成因模式提供了地球物理依据。建议在进一步研究中应重视探测产状平缓、近水平的高速、低阻体。
Abstract:Deep exploration was carried out in Jinchuan mine of Gansu Province by using magnetic method, controlled-source audio-magneto-telluric method, and P wave seismic tomography. The comprehensive researches based on the above methods revealed the high resistivity and high velocity characteristics of the magma source to the depth of over 2 500 m, suggesting that the lava came to the shallow part and spread on both sides to form shallow nearly-horizontal lenticular branches. The fact that the possible consistency between the deep ore-bearing ultrabasic rock and the mineral deposit revealed by the drilling hole provides geophysical evidence for the metallogenic model of the Jinchuan copper-nickel mine. Future exploration should focus on investigating relatively gentle, nearly-horizontal, high-velocity, and low resistivity bodies.
文章编号：
中图分类号：P631; P618.42; P618.63
文献标志码：
基金项目:该项目由深部探测技术与实验研究专项,大陆科学钻探选址与钻探实验项目(SinoProbe-05-07)和金川铜镍矿集团公司共同资助
引用文本：
姜枚,谭捍东,钱辉,张立树,李庆庆,彭淼,王伟.2012.金川铜镍矿床的地球物理深部结构与成因模式[J].矿床地质,31(2):207~215JIANG Mei,TAN HanDong,QIAN Hui,ZHANG LiShu,LI QingQing,PENG Miao,WANG Wei.2012.Geophysical deep structure and genetic model of Jinchuan copper-nickel deposit[J].Mineral Deposits31(2):207~215
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