大功率激发极化法在拉拉铜矿落凼北部找矿中的应用
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摘要
四川省拉拉铜矿落凼矿床是我国典型的大型露天铜多金属矿床。工区位于四川省拉拉铜矿落凼矿床北部。虽然前人在拉拉铜矿进行过激发极化法勘探工作,但是一直效果不佳。为了研究该方法在拉拉铜矿的有效性,在充分研究工作区的地质、地球物理特征基础上,采用大功率激发极化法中间梯度装置与激发极化法测深相组合的勘探方法模式进行勘探研究。通过分析激发极化法异常的平面分布特征与激发极化法测深异常特征,发现这些激电异常与已知地质成果基本吻合,证实了大功率激发极化法勘探在拉拉铜矿区是有效的。通过分析激发极化法异常特征,认为拉拉铜矿具有高极化-中低阻率的激发极化异常特征。此研究为激发极化法在拉拉铜矿地区的开展提供了有力的依据。
The Luodang deposit of the Lala copper mining area is a typical and large open-pit copper polymetallic deposit in Sichuan Province.The working area is located in the north part of the Luodang deposit of the Lala copper mining area.Although the predecessors had used the induced polarization method to carry out the exploration work in the Lala copper mining area,but the exploring effect was always not very well.In order to study the availability ofinduced polarization method in the Lalamining area,the combination exploration method about themiddle-gradient of high-power induced polarization and theinduced polarization sounding has been used in the test work of this deposit,according to the analysis and study of the geological and geophysical characteristic in the area.Through analyzing the plane and sounding abnormal distribution characteristics of induced polarization method,it's found that these IP abnormal is match to the result of geological in general,proving that the exploration of high-power induced polarization method is ef-fective in the LaLa copper mining area.After analyzing and studying the abnormal characteristics of induced polarization method,it's thought that the Lala copper mining area has the characteristics of high polarizability and middle-low resistivity.At last,this paper provides a powerful gist for carrying out the induced polarization method in Lala copper mining area.
The Luodang deposit of the Lala copper mining area is a typical and large open-pit copper polymetallic deposit in Sichuan Province.The working area is located in the north part of the Luodang deposit of the Lala copper mining area.Although the predecessors had used the induced polarization method to carry out the exploration work in the Lala copper mining area,but the exploring effect was always not very well.In order to study the availability ofinduced polarization method in the Lalamining area,the combination exploration method about themiddle-gradient of high-power induced polarization and theinduced polarization sounding has been used in the test work of this deposit,according to the analysis and study of the geological and geophysical characteristic in the area.Through analyzing the plane and sounding abnormal distribution characteristics of induced polarization method,it's found that these IP abnormal is match to the result of geological in general,proving that the exploration of high-power induced polarization method is ef-fective in the LaLa copper mining area.After analyzing and studying the abnormal characteristics of induced polarization method,it's thought that the Lala copper mining area has the characteristics of high polarizability and middle-low resistivity.At last,this paper provides a powerful gist for carrying out the induced polarization method in Lala copper mining area.
引文
孙燕,李承德.四川拉拉铜矿床成矿机制研究[J].成都地质学院学报,1990;17(4):1-9.SUN Yan,LI Chengde.Meneralization mechanism research at lala copper deposit in Sichuan Province[J].Journal of Chengdu College of Geology,1990;17(4):1-9.
肖渊甫,孙燕,赵志强,等.四川省拉拉铜矿床有用伴生组分赋存状态研究[J].中国地质,2010;37(2):463-469.XIAO Yuanfu,SUN Yan,ZHAO Zhiqiang,et al.Models of occurrence of useful associated components in the Lala copper deposit,Sichuan province[J].Geology in China,2010;37(2):463-469.
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杨应选,仇定茂,阙梅英,等.康滇地区前震旦系[M].重庆:重庆出版社,1988:128-141.YANG Yingxuan,CHOU Dingmao,QUE Meiying,et al.Precambrian Stratabound Copper Deposits in Xichang-Central Yunnan Region[M].Chongqing:Chongqing Publishing Group,1988:153-183.
肖渊甫,孙燕.拉拉铜矿床含矿岩系岩石学特征及其变质原岩[J].成都地质学院学报,1992,19(2):11-48.XIAO Yuanfu,SUN Yan.The Petrologic characteristics and metamorphic preexisting rocks of the ore-bearing rocks formation in Lala copper deposits[J].Journal of Chengdu College of Geology,1992,19(2):41-48.
孙燕,舒晓兰,肖渊甫.四川省拉拉铜矿床同位素地球化学特征及成矿意义[J].地球化学,2006,35(5):553-559.SUN Yan,SHU Xiaolan,XIAO Yuanfu.Isotopic geochemistry and metrallogenetic significance in the Lala copper deposit,Sichuan Province,China[J].Geochemica,2006,35(5):553-559.
朱志敏.拉拉铁氧化物铜金矿:成矿时代和金属来源[D].成都理工大学,2011:5-8.ZHU Zhimin.Lala Iron Oxide Copper Gold Deposit:Metallogenic Epoch and Metal Sources[D].Chengdu University of Technology,2011:5-8.
张文宽,文世涛,杨本锦.四川拉拉式铜矿床成矿远景及找矿预测[J].四川地质学报,2009,29(4):415-417.ZHANG Wenkuan,WEN Shitao,YANG Benjin.Metallogenic prospective and Prospecting prediction of Sichuan lala copper deposit[J].Acta Geological Sichuan,2009,29(4):415-417.
陈根文,夏斌.四川拉拉铜矿床成因研究[J].矿物岩石地球化学通报,2001,20(1):42-44.CHEN Genwen,XIA Bin.The causes research of Sichuan lala copper deposit[J].Bulletin of Mineralogy,Petrolgy and Geochemistry,2001,20(1):42-44.
周家云,陈家彪,沈冰,等.四川拉拉铜矿构造成矿动力学机制[J].大地构造与成矿学,2008,32(1):98-104.ZHOU,Jiayun,CHEN Jiabiao,SHEN bing,et al.Tectono-metallogenic mechanism for the Lala copper deposit,Sichuan[J].Geotectonica Et Metallogenia,2008;32(1):98-104.
李帝铨,王光杰,底青云,等.大功率激发极化法在额尔古纳成矿带中段找矿中的应用[J].地球物理学进展,2007,22(5):1621-1626.LI Diquan,WANG Guangjie,DI Qingyun,et al.The application of high-power induced polarization in the middle section of eerguna metallogenic belt[J].Progress in Geophysics,2007,22(5):1621-1626.
高淑芳,崔军.地质找矿过程中如何提高物探工作质量[J].地球物理学进展,2005,20(1):97-103.GAO Shufang,CUI Jun.How to improve the quality of geophysical exploration[J].Progress in Geophysics,2005,20(1):97-103.
傅良魁.激发极化法探矿理论的几个问题[J].地球物理学报,1979,22(2):156-168.FU Liangkui.Some theoretical problems in the application of magnetic induced polarization method in geophysical prospecting[J].Chinese Journal of Geophysics,1979,22(2):156-168.
袁学诚.金属矿地球物理勘探的三十年[J].地球物理学报,1979,37(s1):408-423.YUAN Xuecheng.Geophysical exploration of metallic ore deposits in china for the last 30years[J].Chinese Journal of Geophysics,1979,37(s1):408-423.
关键.大功率激电在吉林某铜矿新一轮找矿中的应用[J].物探与化探,2002,26(5):551-555.GUAN Jian.The application of high power IP method to the new round of ore prospeting work in a copper ore sictrict,Jilin province[J].Geophsical and Geochemical Exploration,2002,26(5):551-555.
刘爱平,楚福禄,郭秀秀,等.激发极化法在冀北某铜钼矿勘查中的应用[J].物探与化探,2008,32(4):363-365.LIU Aiping,CHU Fulu,GUO Xiuxiu,et al.The application of the IP method to the exploration of a copper-molybdenum ore deposit in northern Hebei[J].Geophsical and Geochemical Exploration,2008,32(4):363-365.
刘瑞德,黄力军,杨进,等.综合电法在有色金属矿产勘查中的应用实例[J].物探与化探,2006,30(4):322-326.LIU Ruide,HUANG Lijun,YANG Jin,et al.The application instance of synthesis electrical methods to the exploration of metallic ore deposits[J].Geophsical and Geochemical Exploration,2006,30(4):322-326.
汤井田.激发极化法资料的推断解释方法[M].长沙:中南大学出版社,2002.TANG Jingtian.The inference and interpretation method of induced polarization method data[M].Changsha:Central South Universty Press.2002.
肖渊甫,孙燕,赵志强,等.四川省拉拉铜矿床有用伴生组分赋存状态研究[J].中国地质,2010;37(2):463-469.XIAO Yuanfu,SUN Yan,ZHAO Zhiqiang,et al.Models of occurrence of useful associated components in the Lala copper deposit,Sichuan province[J].Geology in China,2010;37(2):463-469.
冉崇英,刘卫华.康滇地轴铜铁矿床地球化学与矿床层楼结构机理[M].北京:科学出版社,1993:19-39.RAN Chongying,LIU Weihua.Geochemistry of Copper Deposits and Their Mechanism of Storeyed Texture in Kangdian Axis[M].Beijing:Science Press,1993:19-39.
李复汉,覃嘉铭,申玉莲.康滇地区前震旦系[M].重庆:重庆出版社,1988:128-141.LI Fuhan,QIN Jiaming,SHEN Yulian.The Presinan in the Kang Dian Region[M].Chongqing:Chongqing Publishing Group,1988:128-141.
杨应选,仇定茂,阙梅英,等.康滇地区前震旦系[M].重庆:重庆出版社,1988:128-141.YANG Yingxuan,CHOU Dingmao,QUE Meiying,et al.Precambrian Stratabound Copper Deposits in Xichang-Central Yunnan Region[M].Chongqing:Chongqing Publishing Group,1988:153-183.
肖渊甫,孙燕.拉拉铜矿床含矿岩系岩石学特征及其变质原岩[J].成都地质学院学报,1992,19(2):11-48.XIAO Yuanfu,SUN Yan.The Petrologic characteristics and metamorphic preexisting rocks of the ore-bearing rocks formation in Lala copper deposits[J].Journal of Chengdu College of Geology,1992,19(2):41-48.
孙燕,舒晓兰,肖渊甫.四川省拉拉铜矿床同位素地球化学特征及成矿意义[J].地球化学,2006,35(5):553-559.SUN Yan,SHU Xiaolan,XIAO Yuanfu.Isotopic geochemistry and metrallogenetic significance in the Lala copper deposit,Sichuan Province,China[J].Geochemica,2006,35(5):553-559.
朱志敏.拉拉铁氧化物铜金矿:成矿时代和金属来源[D].成都理工大学,2011:5-8.ZHU Zhimin.Lala Iron Oxide Copper Gold Deposit:Metallogenic Epoch and Metal Sources[D].Chengdu University of Technology,2011:5-8.
张文宽,文世涛,杨本锦.四川拉拉式铜矿床成矿远景及找矿预测[J].四川地质学报,2009,29(4):415-417.ZHANG Wenkuan,WEN Shitao,YANG Benjin.Metallogenic prospective and Prospecting prediction of Sichuan lala copper deposit[J].Acta Geological Sichuan,2009,29(4):415-417.
陈根文,夏斌.四川拉拉铜矿床成因研究[J].矿物岩石地球化学通报,2001,20(1):42-44.CHEN Genwen,XIA Bin.The causes research of Sichuan lala copper deposit[J].Bulletin of Mineralogy,Petrolgy and Geochemistry,2001,20(1):42-44.
周家云,陈家彪,沈冰,等.四川拉拉铜矿构造成矿动力学机制[J].大地构造与成矿学,2008,32(1):98-104.ZHOU,Jiayun,CHEN Jiabiao,SHEN bing,et al.Tectono-metallogenic mechanism for the Lala copper deposit,Sichuan[J].Geotectonica Et Metallogenia,2008;32(1):98-104.
李帝铨,王光杰,底青云,等.大功率激发极化法在额尔古纳成矿带中段找矿中的应用[J].地球物理学进展,2007,22(5):1621-1626.LI Diquan,WANG Guangjie,DI Qingyun,et al.The application of high-power induced polarization in the middle section of eerguna metallogenic belt[J].Progress in Geophysics,2007,22(5):1621-1626.
高淑芳,崔军.地质找矿过程中如何提高物探工作质量[J].地球物理学进展,2005,20(1):97-103.GAO Shufang,CUI Jun.How to improve the quality of geophysical exploration[J].Progress in Geophysics,2005,20(1):97-103.
傅良魁.激发极化法探矿理论的几个问题[J].地球物理学报,1979,22(2):156-168.FU Liangkui.Some theoretical problems in the application of magnetic induced polarization method in geophysical prospecting[J].Chinese Journal of Geophysics,1979,22(2):156-168.
袁学诚.金属矿地球物理勘探的三十年[J].地球物理学报,1979,37(s1):408-423.YUAN Xuecheng.Geophysical exploration of metallic ore deposits in china for the last 30years[J].Chinese Journal of Geophysics,1979,37(s1):408-423.
关键.大功率激电在吉林某铜矿新一轮找矿中的应用[J].物探与化探,2002,26(5):551-555.GUAN Jian.The application of high power IP method to the new round of ore prospeting work in a copper ore sictrict,Jilin province[J].Geophsical and Geochemical Exploration,2002,26(5):551-555.
刘爱平,楚福禄,郭秀秀,等.激发极化法在冀北某铜钼矿勘查中的应用[J].物探与化探,2008,32(4):363-365.LIU Aiping,CHU Fulu,GUO Xiuxiu,et al.The application of the IP method to the exploration of a copper-molybdenum ore deposit in northern Hebei[J].Geophsical and Geochemical Exploration,2008,32(4):363-365.
刘瑞德,黄力军,杨进,等.综合电法在有色金属矿产勘查中的应用实例[J].物探与化探,2006,30(4):322-326.LIU Ruide,HUANG Lijun,YANG Jin,et al.The application instance of synthesis electrical methods to the exploration of metallic ore deposits[J].Geophsical and Geochemical Exploration,2006,30(4):322-326.
汤井田.激发极化法资料的推断解释方法[M].长沙:中南大学出版社,2002.TANG Jingtian.The inference and interpretation method of induced polarization method data[M].Changsha:Central South Universty Press.2002.