综合找矿方法在黑龙江省黑河市五道沟地区的应用
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摘要
五道沟地区位于黑龙江省贺根山—黑河构造结合带的北缘,多宝山至三道湾子成矿带的中部,该区域成矿潜力巨大,是寻找金铜多金属矿的有利地区。为在五道沟地区实现找矿突破开展了地质找矿工作,并以1∶1万土壤地球化学测量数据为基础,采用元素的变化系数、CV1和CV1/CV 2变化系数解释图对土壤地球化学测量的元素进行分析,揭示各元素在空间上的富集分布规律及其成矿潜力。在此基础上,结合区内成矿地质条件和物探异常特征对该区进行找矿预测。研究表明:①Cu、Ag、Zn、Mo、W等9种元素在研究区内成矿潜力较小;Au元素成矿潜力较大。②据物探激电中梯测量显示,在研究区内共圈定2处电阻率异常,其编号为ρs-1、ρs-2。③根据地质-物探-化探异常套合关系在区内圈定了1处找矿靶区,经过对1号靶区进行工程验证发现了3条金矿体,表明五道沟地区具有较好的找矿前景。
Wudaogou area is located in the northern margin of the Hegenshan-Heihe tectonic junction zone in Heilongjiang Province,and in the middle of the Duobaoshan-Sandaowanzi metallogenic belt.It has great metallogenic potential and is a favorable area for prospecting for Au-Cu polymetallic deposits.In order to achieve a breakthrough in prospecting in Wudaogou area,geological prospecting work was carried out.Based on 1∶10,000 soil geochemical survey data,the elements of the soil geochemical survey were analyzed by using the variation coefficients of elements,CV 1 and CV1/CV2 variation coefficients interpretation maps,and the spatial enrichment and distribution of elements and their mineralization potential were revealed.On this basis,combined with the metallogenic geological conditions and geophysical anomaly characteristics,the prospecting prediction in this area was carried out.The results of the study showed that;①the metallogenic potential of nine elements,such as Cu,Ag,Zn,Mo and W,was relatively small in the study area,while that of Au was relatively large.②According to the elevator survey of IP in geophysical prospecting,two resistivity anomalies were delineated in the study area,numbered asρs-1 andρs-2.③A prospecting target area had been delineated in the area according to the geological-geophysical-geochemical anomaly matching relationship.Three gold orebodies have been found through engineering verification of target area 1,which indicates that Wudaogou area has good prospecting prospects.
Wudaogou area is located in the northern margin of the Hegenshan-Heihe tectonic junction zone in Heilongjiang Province,and in the middle of the Duobaoshan-Sandaowanzi metallogenic belt.It has great metallogenic potential and is a favorable area for prospecting for Au-Cu polymetallic deposits.In order to achieve a breakthrough in prospecting in Wudaogou area,geological prospecting work was carried out.Based on 1∶10,000 soil geochemical survey data,the elements of the soil geochemical survey were analyzed by using the variation coefficients of elements,CV 1 and CV1/CV2 variation coefficients interpretation maps,and the spatial enrichment and distribution of elements and their mineralization potential were revealed.On this basis,combined with the metallogenic geological conditions and geophysical anomaly characteristics,the prospecting prediction in this area was carried out.The results of the study showed that;①the metallogenic potential of nine elements,such as Cu,Ag,Zn,Mo and W,was relatively small in the study area,while that of Au was relatively large.②According to the elevator survey of IP in geophysical prospecting,two resistivity anomalies were delineated in the study area,numbered asρs-1 andρs-2.③A prospecting target area had been delineated in the area according to the geological-geophysical-geochemical anomaly matching relationship.Three gold orebodies have been found through engineering verification of target area 1,which indicates that Wudaogou area has good prospecting prospects.
引文
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[15]刘君,潘亮,赵鹤森,等.水系沉积物测量在老挝巴乌地区的应用[J].金属矿山,2015,44(2):92-97.
[16]王磊,杨建国,王小红,等.甘肃北山拾金坡-南金滩地区水系沉积物地球化学特征及找矿远景[J].中国地质,2016,43(2):585-593.
[17]李随民,崔美娟,魏明辉,等.张家口地区矿化元素异常信息提取与集成[J].中国地质,2013,40(6):1925-1934.
[18]郝立波,李巍,陆继龙.确定岩性复杂区的地球化学背景与异常的方法[J].地质通报,2007,26(12):1531-1535.
[19]程志中,谢学锦.岩石中元素背景值变化对地球化学成矿预测的影响[J].中国地质,2006,33(2):411-417.
[20]郭奎城,张文龙,杨晓平,等.黑河市五道沟地区早二叠世A型花岗岩成因[J].吉林大学学报(地球科学版),2011,41(4):1077-1083.
[2]罗先熔,陈三明,杜建波,等.地球电化学勘查法寻找不同埋深隐伏金矿的研究[J].矿物岩石地球化学通报,2002,22(4):42-46.
[3]徐云峰,王显锋,胡朝云,等.四川甲基卡地区1∶5万水系沉积物地球化学特征及稀有金属找矿远景[J].金属矿山,2018,47(2):121-130.
[4]李玉松,张玉清,马立柯.老挝普老地区多金属矿地球化学异常特征及找矿前景[J].中国地质,2016,43(5):1780-1790.
[5]王美丁,马见青.青海循化地区高精度磁异常特征及找矿预测[J].物探与化探,2018,42(3):491-498.
[6]苏美霞,孙会玲,赵志军,等.内蒙古高尔旗半隐伏银铅锌多金属矿中大比例尺重力测量应用效果[J].物探与化探,2018,42(2):292-302.
[7]李冰,尚建阁,冯亮,等.双频激电法在豫西山区快速找矿评价中的应用[J].矿产勘查,2011,2(3):283-286.
[8]向安平,杨郧城,李贵涛,等.黑龙江多宝山斑岩Cu-Mo矿床成岩成矿时代研究[J].矿床地质,2012,31(6):1237-1248.
[9]赵一鸣,毕承思,邹晓秋,等.黑龙江多宝山、铜山大型斑岩铜(钼)矿床中辉钼矿的铼-锇同位素年龄[J].地球学报,1997,18(1):61-67.
[10]赵天宇,赵海滨,孙丰月,等.黑龙江三道湾子金矿床同位素年龄对成矿时代的约束[J].中国地质,2013,40(4):1202-1208.
[11]赵广江,侯玉树,王宝权.黑龙江省争光金矿地质特征及成因初探[J].有色矿冶,2006,22(3):3-6.
[12]宋长春,张宝林,淳于树菊,等.黑龙江省黑河五道沟-小黑山地区金矿找矿远景分析[J].黄金科学技术,1995,3(1):14-18.
[13]孙雨,神元,鲁正清,等.河南卢氏三官庙钼多金属矿区土壤地球化学特征及成矿预测[J].金属矿山,2018,47(1):128-136.
[14]景宝盛,潘维良,单金忠,等.新疆祁漫塔格东段区域化探及其找矿效果[J].中国地质,2014,41(1):264-284.
[15]刘君,潘亮,赵鹤森,等.水系沉积物测量在老挝巴乌地区的应用[J].金属矿山,2015,44(2):92-97.
[16]王磊,杨建国,王小红,等.甘肃北山拾金坡-南金滩地区水系沉积物地球化学特征及找矿远景[J].中国地质,2016,43(2):585-593.
[17]李随民,崔美娟,魏明辉,等.张家口地区矿化元素异常信息提取与集成[J].中国地质,2013,40(6):1925-1934.
[18]郝立波,李巍,陆继龙.确定岩性复杂区的地球化学背景与异常的方法[J].地质通报,2007,26(12):1531-1535.
[19]程志中,谢学锦.岩石中元素背景值变化对地球化学成矿预测的影响[J].中国地质,2006,33(2):411-417.
[20]郭奎城,张文龙,杨晓平,等.黑河市五道沟地区早二叠世A型花岗岩成因[J].吉林大学学报(地球科学版),2011,41(4):1077-1083.
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