胶西北河东金矿多元异常信息找矿预测
|
摘要
河东金矿位于胶西北望儿山断裂中段,其探矿深度已超过地表下800m,根据测区强干扰条件及2 000m深度探测要求,制定了针对深部矿体定位预测的地、物、化、遥多元异常信息找矿方案,其中化探方法采用的是构造地球化学法。遥感蚀变信息来源于美国7号陆地卫星ETM多光谱数据。物探技术选择了广域电磁测深法,并按120m×50m网度开展了9条测线的广域电磁测深法测量。在平面上主要依据遥感泥化蚀变异常和Au、As、Cu等元素的构造地球化学异常,在剖面上主要根据广域电磁测深法所获得的低电阻率异常信息,结合地质认识圈定出深部找矿靶位两处。经钻探工程验证,在300~1 300m深度范围发现了新的隐伏矿体。
Hedong gold deposit is located in the middle of Wangershan fault.The depth of prospecting in the deposit had exceeded 800 m.The ore exploration scheme based on multiple abnormal information was established according to the intense disturbance condition and the demand of exploring depth of 2000m.The method of tectonic geochemistry was chosen as the geochemical method.The remote sensing alteration information was from ETM multispectral data of Landsat 7of USA.Wide field electromagnetic sounding methods was chosen as the geophysical prospecting method and 9survey lines were completed according to120m×50msurvey grid.Two prospecting targets were delineated according to the abnormity of remote sensing pelitization alteration and the tectonic geochemistry of Au,As and Cu in the plane and the low resistivity abnormity from wide field electromagnetic sounding methods in the section.New gold orebodies were discovered at the depth from 300mto 1300mby drillings.
Hedong gold deposit is located in the middle of Wangershan fault.The depth of prospecting in the deposit had exceeded 800 m.The ore exploration scheme based on multiple abnormal information was established according to the intense disturbance condition and the demand of exploring depth of 2000m.The method of tectonic geochemistry was chosen as the geochemical method.The remote sensing alteration information was from ETM multispectral data of Landsat 7of USA.Wide field electromagnetic sounding methods was chosen as the geophysical prospecting method and 9survey lines were completed according to120m×50msurvey grid.Two prospecting targets were delineated according to the abnormity of remote sensing pelitization alteration and the tectonic geochemistry of Au,As and Cu in the plane and the low resistivity abnormity from wide field electromagnetic sounding methods in the section.New gold orebodies were discovered at the depth from 300mto 1300mby drillings.
引文
[1]彭省临,刘亮明,赖健清,等.层次分析法在矿床大比例尺定位预测中的应用:以铜陵凤凰山铜矿为例[J].大地构造与成矿学,2005,29(1):71-77.
[2]肖克炎,朱裕生,张晓华,等.矿产资源评价中的成矿信息提取与综合技术[J].矿床地质,1999,18(4):379-384.
[3]谢格洛夫.成矿分析基础[M].吴承栋,译.北京:地质出版社,1985.
[4]曲少飞,鲁世朋,王国征.激电测量在莱西市山后金矿区萌山矿段的应用[J].山东国土资源,2009,25(10):37-44.
[5]邹光华.简述激电法在金矿普查中的应用[J].物探与化探,1992,16(1):38-47.
[6]李德亭,孙之夫,张锐,等.山东焦家金矿床深部成矿预测与找矿效果对比[J].地质找矿论丛,2002,17(2):107-115.
[7]贺振,张学仁.山东牟乳金矿带构造控矿特征及综合预测[J].地质与勘探,2006,42(4):41-45.
[8]张均,陈守余.焦家金矿田的成矿构造物理化学场结构分析[J].地球科学:中国地质大学学报,1998,23(2):120-124.
[9]周明.胶东金矿的磁测效果[J].物探与化探,1989,13(4):266-272.
[10]曹春国,于义文,郭国强,等.综合物探技术在三山岛断裂带与焦家断裂带深部成矿模式中的应用[J].山东国土资源,2012,28(4):19-24.
[11]石昆法,张庚利,李英贤,等.CSAMT法在山东蓬家夼地区层间滑动角砾型金矿成矿预测中的应用[J].地质与勘探,2001,37(1):86-90.
[12]曾庆栋,沈远超,刘铁兵,等.胶东牟平发云夼金矿区地球物理综合找矿研究[J].湘潭矿业学院学报,2001,16(4):17-19.
[13]江为为,郝天珧,于昌明.山东栖霞百里店地区综合地质、地球物理研究[J].地球物理学进展,1997,12(2):41-49.
[14]杨斌,高星,彭省临,等.招平断裂带大尹格庄—后仓段深部矿体定位预测[J].中国有色金属学报,2012,22(3):872-879.
[15]何继善.广域电磁测深法研究[J].中南大学学报:自然科学版,2010,41(3):1065-1072.
[16]朱裕振,许聪悦.广域电磁法深部找矿实验效果[J].物探与化探,2011,35(6):743-746.
[17]王顺国,熊彬.广域视电阻率的数值计算方法[J].物探化探计算技术,2012,34(4):380-384.
[18]周必文,凌帆.E-Ex广域电磁法探测火山岩油气藏的实验研究[J].油气地球物理,2012,10(3):56-59.
[19]杨斌,彭省临,董军,等.浅析热液对流成矿系统[J].矿产与地质,2004,18(2):95-99.
[20]李守生,叶珂,杨斌,等.山东招平断裂带及其外围地区遥感蚀变提取与找矿预测[J].矿产与地质,2011,25(3):231-235.
[2]肖克炎,朱裕生,张晓华,等.矿产资源评价中的成矿信息提取与综合技术[J].矿床地质,1999,18(4):379-384.
[3]谢格洛夫.成矿分析基础[M].吴承栋,译.北京:地质出版社,1985.
[4]曲少飞,鲁世朋,王国征.激电测量在莱西市山后金矿区萌山矿段的应用[J].山东国土资源,2009,25(10):37-44.
[5]邹光华.简述激电法在金矿普查中的应用[J].物探与化探,1992,16(1):38-47.
[6]李德亭,孙之夫,张锐,等.山东焦家金矿床深部成矿预测与找矿效果对比[J].地质找矿论丛,2002,17(2):107-115.
[7]贺振,张学仁.山东牟乳金矿带构造控矿特征及综合预测[J].地质与勘探,2006,42(4):41-45.
[8]张均,陈守余.焦家金矿田的成矿构造物理化学场结构分析[J].地球科学:中国地质大学学报,1998,23(2):120-124.
[9]周明.胶东金矿的磁测效果[J].物探与化探,1989,13(4):266-272.
[10]曹春国,于义文,郭国强,等.综合物探技术在三山岛断裂带与焦家断裂带深部成矿模式中的应用[J].山东国土资源,2012,28(4):19-24.
[11]石昆法,张庚利,李英贤,等.CSAMT法在山东蓬家夼地区层间滑动角砾型金矿成矿预测中的应用[J].地质与勘探,2001,37(1):86-90.
[12]曾庆栋,沈远超,刘铁兵,等.胶东牟平发云夼金矿区地球物理综合找矿研究[J].湘潭矿业学院学报,2001,16(4):17-19.
[13]江为为,郝天珧,于昌明.山东栖霞百里店地区综合地质、地球物理研究[J].地球物理学进展,1997,12(2):41-49.
[14]杨斌,高星,彭省临,等.招平断裂带大尹格庄—后仓段深部矿体定位预测[J].中国有色金属学报,2012,22(3):872-879.
[15]何继善.广域电磁测深法研究[J].中南大学学报:自然科学版,2010,41(3):1065-1072.
[16]朱裕振,许聪悦.广域电磁法深部找矿实验效果[J].物探与化探,2011,35(6):743-746.
[17]王顺国,熊彬.广域视电阻率的数值计算方法[J].物探化探计算技术,2012,34(4):380-384.
[18]周必文,凌帆.E-Ex广域电磁法探测火山岩油气藏的实验研究[J].油气地球物理,2012,10(3):56-59.
[19]杨斌,彭省临,董军,等.浅析热液对流成矿系统[J].矿产与地质,2004,18(2):95-99.
[20]李守生,叶珂,杨斌,等.山东招平断裂带及其外围地区遥感蚀变提取与找矿预测[J].矿产与地质,2011,25(3):231-235.