综合物探在新疆1∶50000矿产普查中的应用
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摘要
为了在新疆1∶50 000矿产普查中研究成矿地质条件圈定成矿远景区域,在普查过程中通过重、磁、电等多种物探手段的综合应用,来探测深部和隐伏矿,效果明显。通过采集标本对其工作区的物性特征加以归纳分析,指导物探方法(重、磁、激电)的运用,为后续开展物探工作提供借鉴。首先在工作区利用重力和航磁资料,查明勘探区内地质构造特征及岩体分布规律,得到重、磁高值异常区多与岩体、岩体接触带及断裂带有关,而该区域的成矿与接触带或断裂构造密切相关,在接触带及断裂构造带上有利于硫化物发育,再利用大功率激发极化法的低阻高极化特征圈定含硫化物的有利区域,最后优选重、磁、电综合物探异常特征明显、成矿部位有利地段,并结合地质、化探异常特征对工作区定性的综合评价,指导寻找含硫化物的岩(矿)体,最终圈定找矿靶区一处,为矿产普查工作提供基础资料和找矿依据。
In order to study the mineralization geological conditions in 1∶50000 mineral census of Xinjiang, delineate the prospecting area, in the census process using gravity, magnetic, electric integrated applications. Through the collection of specimens on the physical properties of the working area is to be inducted and analyzed, and to be guide the application of geophysical prospecting methods(heavy, magnetic and electric) the follow-up to provide the basis for geophysical. First of all, in the working area using gravity and aeromagnetic data to find out geological tectonic characteristics and distribution of rock mass, the anomalies of gravity and magnetic high value area are much related to rock mass, rock contact zone and fracture zone as well. The region mineralization is closely related to the contact zone or fracture structure, in the contact zone and the development of fracture structure which brings to sulfide, using low resistance and high polarization characteristics of high power induced polarization method for delineating favorable area containing sulfide. Finally, the geophysical anomalies of the combination of gravity, magnetic, electric features is obvious, favorable location of mineralize, combined with geological, geochemical anomaly characteristics of the qualitative evaluation of the work area, delineation of a prospecting target area, to provide basic information for the mineral census and ore prospecting basis.
In order to study the mineralization geological conditions in 1∶50000 mineral census of Xinjiang, delineate the prospecting area, in the census process using gravity, magnetic, electric integrated applications. Through the collection of specimens on the physical properties of the working area is to be inducted and analyzed, and to be guide the application of geophysical prospecting methods(heavy, magnetic and electric) the follow-up to provide the basis for geophysical. First of all, in the working area using gravity and aeromagnetic data to find out geological tectonic characteristics and distribution of rock mass, the anomalies of gravity and magnetic high value area are much related to rock mass, rock contact zone and fracture zone as well. The region mineralization is closely related to the contact zone or fracture structure, in the contact zone and the development of fracture structure which brings to sulfide, using low resistance and high polarization characteristics of high power induced polarization method for delineating favorable area containing sulfide. Finally, the geophysical anomalies of the combination of gravity, magnetic, electric features is obvious, favorable location of mineralize, combined with geological, geochemical anomaly characteristics of the qualitative evaluation of the work area, delineation of a prospecting target area, to provide basic information for the mineral census and ore prospecting basis.
引文
[1] 何继善.金属矿电法勘探[M].北京:冶金工业出版社,1980.HE J S.Metal mineral prospecting[M].Beijing:Metallurgical Industry Press,1980.(In Chinese)
[2] 周立国.物探方法在青海哈得尔甘南地区寻找矽卡岩型铁多金属矿中的应用效果[J].地球物理学进展,2017,32(5):2176-2181.ZHOU L G.Effect of application of geophysical prospecting method for skarn iron polymetallic deposit in the Hadeer gannan area in Qinghai[J].Progress in Geophysics,2017,32(5):2176-2181.(In Chinese)
[3] 庄道泽,孟贵祥,陈蜀雁,等.成矿带1:5万激发极化法普查的初步尝试[J],地质通报,2004,23(7):707-713.ZANG D Z,MENG G X,CHEN S Y,et al Preliminary test of the induced polarization method in 1:50000 reconnaissance in a metallogenic belt[J].Geolgical Bulletin of China,2004,23(7):707-713.(In Chinese)
[4] 孙仁斌,汪洋,楚丽霞,等.关于时间域激发极化法中视极化率负值的判别和应用[J].地球物理学进展,2017,32(1):273-278.SUN R B,WANG Y,CHU L X,et al.Discrimination of apparent polarizability negative in time-domain induced polarization and its application[J].Progress in Geophysics,2017,32(1):273-278.(In Chinese)
[5] 文武,徐毅,曾力力,等.一种改进的激发极化测量方法和对比实验研究[J].地球物理学进展,2017,32(1):299-305.WEN W,XU Y,ZENG L L,et al J.Revised IP survey method and study of the contrast test[J].Progress in Geophysics,2017,32(1):299-305.(In Chinese)
[6] 杨兴,赵旭,李继安,等.激电测深在资料调查评价中的研究[J].东华理工大学学报:自然科学版,2017,40(3):284-292.YANG X,ZHAO X,LI J A,et al.Research of induced polarization sounding in resources investigation and evaluation[J].Journal of east china university of technology.Natural science edition,2017,40(3):284-292.(In Chinese)
[7] 王艺霖,刘宽厚,李跃秋.国内地勘单位大功率激电仪持有现状比较及配置思考[J].西部探矿工程,2017(4):98-101.WANG Y L,LIU K H,LI Y J.Current situation comparison and configuration thinking of high power point analyzer in domestic geological prospecting units[J].West-china Exploration Engineering,2017(4):98-101.(In Chinese)
[8] 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 D Q,WANG G J,DI Q Y,et al.The application of high power induced polarization in the middle section of eerguna metallogenic belt[J].Progress in Geophysics,2077,22(5):1621-1626.(In Chinese)
[2] 周立国.物探方法在青海哈得尔甘南地区寻找矽卡岩型铁多金属矿中的应用效果[J].地球物理学进展,2017,32(5):2176-2181.ZHOU L G.Effect of application of geophysical prospecting method for skarn iron polymetallic deposit in the Hadeer gannan area in Qinghai[J].Progress in Geophysics,2017,32(5):2176-2181.(In Chinese)
[3] 庄道泽,孟贵祥,陈蜀雁,等.成矿带1:5万激发极化法普查的初步尝试[J],地质通报,2004,23(7):707-713.ZANG D Z,MENG G X,CHEN S Y,et al Preliminary test of the induced polarization method in 1:50000 reconnaissance in a metallogenic belt[J].Geolgical Bulletin of China,2004,23(7):707-713.(In Chinese)
[4] 孙仁斌,汪洋,楚丽霞,等.关于时间域激发极化法中视极化率负值的判别和应用[J].地球物理学进展,2017,32(1):273-278.SUN R B,WANG Y,CHU L X,et al.Discrimination of apparent polarizability negative in time-domain induced polarization and its application[J].Progress in Geophysics,2017,32(1):273-278.(In Chinese)
[5] 文武,徐毅,曾力力,等.一种改进的激发极化测量方法和对比实验研究[J].地球物理学进展,2017,32(1):299-305.WEN W,XU Y,ZENG L L,et al J.Revised IP survey method and study of the contrast test[J].Progress in Geophysics,2017,32(1):299-305.(In Chinese)
[6] 杨兴,赵旭,李继安,等.激电测深在资料调查评价中的研究[J].东华理工大学学报:自然科学版,2017,40(3):284-292.YANG X,ZHAO X,LI J A,et al.Research of induced polarization sounding in resources investigation and evaluation[J].Journal of east china university of technology.Natural science edition,2017,40(3):284-292.(In Chinese)
[7] 王艺霖,刘宽厚,李跃秋.国内地勘单位大功率激电仪持有现状比较及配置思考[J].西部探矿工程,2017(4):98-101.WANG Y L,LIU K H,LI Y J.Current situation comparison and configuration thinking of high power point analyzer in domestic geological prospecting units[J].West-china Exploration Engineering,2017(4):98-101.(In Chinese)
[8] 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 D Q,WANG G J,DI Q Y,et al.The application of high power induced polarization in the middle section of eerguna metallogenic belt[J].Progress in Geophysics,2077,22(5):1621-1626.(In Chinese)