학술논문
黑龙江省木兰县六块地南土壤地球化学异常特征及成矿预测 / Characteristics of soil geochemical anomalies and metallogenic prediction in Liukuaidi South of Mulan County,Heilongjiang Province
Document Type
Academic Journal
Author
尹志刚; 姜然; 陈军典; 李萌萌; 周小刚; 张凯强; 姜琦; 郭浩; YIN Zhigang; JIANG Ran; CHEN Jundian; LI Mengmeng; ZHOU Xiaogang; ZHANG Kaiqiang; JIANG Qi; GUO Hao
Source
地质通报 / Geological Bulletin of China. 42(12):2015-2027
Subject
Language
Chinese
ISSN
1671-2552
Abstract
黑龙江木兰县六块地南大地构造位置属于小兴安岭-张广才岭岩浆弧,成矿区带为伊春-延寿多金属成矿亚带的重要组成部分,成矿地质条件优越.为查明该区各成矿元素和矿(化)体的分布特征,实现找矿突破,开展了1∶2万土壤地球化学测量及成矿预测工作.利用12种成矿元素进行相关性分析、聚类分析、因子分析、单元素异常分析和组合元素异常分析,圈定了元素异常区,优选了找矿靶区.结果表明,区内Au、As、Sb、Mo元素变异系数值高,成矿潜力较强;As、Sb元素的相关性较好,相关系数为0.73,R型聚类分析将成矿元素分为4类,因子分析将分析元素分为4组;结合区内成矿地质条件和土壤地球化学异常特征,共圈出单元素异常113处,组合异常3处;测区主攻矿种为Au和Zn,Au元素主要找矿靶区为Au-5和Au-7异常区,Zn元素主要找矿靶区为Zn-6异常区,As、Sb、Mo找矿前景非常好,可作为第一找矿目标元素.
The study area Liukuaidi South is located in the central and eastern part of Heilongjiang Province.The tectonic position belongs to the Xiaoxinganling-Zhangguangcailing magmatic arc.The metallogenic zone is an important part of the Yichun-Yanshou polymetallic metallogenic subbelt,and the metallogenic geological conditions are superior.To find out the distribution characteristics of ore-forming elements and ore-forming bodies in the study area and achieve the ore-prospecting breakthrough,a 1∶20000 soil geochemical survey and ore-forming prediction were carried out.The correlation analysis,cluster analysis,factor analysis,single element anomaly analysis,and combined element anomaly analysis of 12 metallogenic elements are used to delineate the element anomaly area and optimize the prospecting target area.The results show that the variation coefficients of Au,As,Sb,and Mo are high and the metallogenic potential is strong.The correlation coefficient of As and Sb elements was 0.73.The metallogenic elements were divided into four groups by R-type cluster analysis and four groups by factor analysis.Combined with the ore-forming geological conditions and soil geochemical anomaly characteristics,113 single-element anomalies and 3 combined anomalies were identified.The main ore types in the test area are Au and Zn,the main Au prospecting target areas are Au-5 and Au-7 abnormal areas,and the main Zn prospecting target areas are Zn-6 abnormal areas.Sb and Mo have very good prospecting prospects and can be used as the first prospecting target elements.
The study area Liukuaidi South is located in the central and eastern part of Heilongjiang Province.The tectonic position belongs to the Xiaoxinganling-Zhangguangcailing magmatic arc.The metallogenic zone is an important part of the Yichun-Yanshou polymetallic metallogenic subbelt,and the metallogenic geological conditions are superior.To find out the distribution characteristics of ore-forming elements and ore-forming bodies in the study area and achieve the ore-prospecting breakthrough,a 1∶20000 soil geochemical survey and ore-forming prediction were carried out.The correlation analysis,cluster analysis,factor analysis,single element anomaly analysis,and combined element anomaly analysis of 12 metallogenic elements are used to delineate the element anomaly area and optimize the prospecting target area.The results show that the variation coefficients of Au,As,Sb,and Mo are high and the metallogenic potential is strong.The correlation coefficient of As and Sb elements was 0.73.The metallogenic elements were divided into four groups by R-type cluster analysis and four groups by factor analysis.Combined with the ore-forming geological conditions and soil geochemical anomaly characteristics,113 single-element anomalies and 3 combined anomalies were identified.The main ore types in the test area are Au and Zn,the main Au prospecting target areas are Au-5 and Au-7 abnormal areas,and the main Zn prospecting target areas are Zn-6 abnormal areas.Sb and Mo have very good prospecting prospects and can be used as the first prospecting target elements.