黑龙江省嫩江-黑河地区水系沉积物测量地球化学特征及成矿预测  

Geochemical Characteristics of Stream Sediments in the Nenjiang-Heihe Area,Heilongjiang Province and the Metallogenic Prognosis

作　　者：李旭东 李成禄 杨元江 符安宗 赵立东 杨文鹏 郑博 LI Xudong;LI Chenglu;YANG Yuanjiang;FU Anzong;ZHAO Lidong;YANG Wenpeng;ZHENG Bo(Mudanjiang Natural Resources Survey Center,China Geological Survey,Mudanjiang,Heilongjiang 157021;Natural Resources Survey Institute of Heilongjiang Province,Harbin,Heilongjiang 150036)

机构地区：[1]中国地质调查局牡丹江自然资源综合调查中心,黑龙江牡丹江157021 [2]黑龙江省自然资源调查院,黑龙江哈尔滨150036

出　　处：《地质与勘探》2024年第6期1153-1167,共15页Geology and Exploration

基　　金：黑龙江省国土资源科研项目(编号:黑国土科研201603);黑龙江省地质矿产局科研项目(编号:HKY202301);黑龙江省自然科学基金资助项目(编号:LH2022D031)联合资助。

摘　　要：黑龙江嫩江-黑河地区分布有黑龙江省著名的多宝山矿集区,区内矿产资源丰富,以金、银、铜矿床为主,随着近年大量矿床的发现,显示该区域具备良好的找矿前景。研究区地球化学景观属于森林沼泽景观区,为更好地实现该地区的找矿突破,本次系统收集了区内1∶20万、1∶25万水系沉积物测量原始数据,对数据进行处理和分析,确定了元素的地球化学参数特征、元素的共生组合关系及其区域分布特征,共圈定单元素异常1259处,其中Au异常114处、Cu异常88处、Ag异常64处,并圈定组合异常112处。对各类元素特征进行了综合研究,并根据水系沉积物异常特征,对比异常的分布规律,同时结合典型矿床,在研究区划分了3处找矿远景区,分别为法别拉西山-长庆村北东向金银找矿远景区、多宝山地区金银铜找矿远景区和古里农场2队-大子杨山防火检查站南北向银找矿远景区,为该地区寻找金银铜等矿产资源提供依据。对远景区内的Hs-51号组合异常和Hs-38号组合异常的特征进行了解释和评价,两个组合异常内目前为止共发现了三道湾子金矿床、争光金矿床、铜山铜矿床等6处大型矿床,认为区域尚有较大成矿潜力。The Nenjiang-Heihe area includes the famous Duobaoshan ore concentration area in Heilongjiang Province.This area contains abundant mineral resources dominated by gold,silver and copper,and the recent discovery of a large number of deposits indicates a great metallogenic prospect of this area.This study area belongs to a forest swamp landscape area.In order to better realize prospecting breakthrough in this area,this work collected original data from 1:200,000 and 1:250,000 stream sediment measurements,and processed and analyzed the data to determine geochemical parameter characteristics of elements,associations of elements and their regional distribution.A total of 1259 single element anomalies were delineated,including 114 gold anomalies,88 copper anomalies,64 silver anomalies,and 112 combination anomalies.The characteristics of various elements were comprehensively studied,and the distribution of element anomalies was analyzed according to the anomalies of stream sediments.Combined with typical ore deposits,three prospecting areas were delineated,i.e.,the NE-trending gold and silver prospective area from Fabielaxishan to Changqing village,the Duobaoshan gold-silver-copper prospective area,and NS-trending silver prospective area from Team No.2 of Guli farm to Daziyangshan fire prevention inspection station.These three prospective areas can provide basis for discovering gold,silver,copper resources in this area.The characteristics of the combination anomalies No.Hs-51 and Hs-38 were evaluated,and a total of six large deposits have been discovered so far,including the Sandaowanzi gold deposit,Zhengguang gold deposit,and Tongshan copper deposit,indicative of a still significant mineralization potential in the region.

关 键 词：水系沉积物 地球化学特征 找矿远景区 异常特征 成矿预测 嫩江-黑河地区 黑龙江省 

分 类 号：P618[天文地球—矿床学]