黑龙江省逊克县翠巍重磁异常评价  

Evaluation of Gravity and Magnetic Anomalies in the Cuiwei Area,Xunke County,Heilongjiang Province

作　　者：徐航宇 杨宇山[1] 李春芳 刘天佑[1] XU Hangyu;YANG Yushan;LI Chunfang;LIU Tianyou(Institute of Geophysics & Geomatics,China University of Geosciences(Wuhan),Wuhan,Hubei430074;Heilongjiang Mining Group Co.,Ltd.,Haerbin,Heilongjiang150036)

机构地区：[1]中国地质大学(武汉),地球物理与空间信息学院,湖北武汉430074 [2]黑龙江省矿业集团有限责任公司,黑龙江哈尔滨150036

出　　处：《地质与勘探》2019年第4期986-998,共13页Geology and Exploration

摘　　要：翠宏山铁矿是黑龙江省逊克县翠宏山地区最大的铁多金属矿床。从20世纪60年代开始已在此处陆续探明铁多金属矿储量一亿多吨。翠巍重磁异常区位于翠宏山铁矿西南约10km处,1961年北京航空物探大队发现该区与翠宏山矿区有相同的高磁异常特征,因此翠巍能否成为第二个“翠宏山”备受人们关注。本文采用小波多尺度分解、2.5D反演等方法对重磁资料进行了处理,从地层、构造、成矿条件以及重磁异常特征等方面,对比了翠巍与翠宏山-翠中矿区,得出引起翠巍异常因素与翠宏山-翠中矿区相同,均为矿化矽卡岩地层,该结论为矿田外围找矿提供了重要依据。The Cuihongshan iron-ore mine is the largest ploymetallic deposit in the Cuihongshan area,Xunke County,Heilongjiang Province.More than 100 million tons of multi-metal iron ores have been found in this place since the 1960s.The Cuiwei gravity-magnetic anomaly area is located in the southwest of this mine,about 10km distant.In 1961,high magnetic anomalies,same as those of the Cuihongshan mine,were detected in this area.Therefore,it attracts much attention whether Cuiwei will become the second“Cuihongshan”.To address this question,this work adopted a series of methods to process the gravity and magnetic data in Cuiwei,including wavelet multi-scale decomposition and 2.5D inversion,and compared the Cuiwei and Cuihong-Cuizhong mines in the features of strata,structure,metallogenic conditions and gravity-magnetic anomalies.Results suggest that the factors causing the anomalies in Cuiwei are the same as those in Cuihongshan,both of which are mineralized skarn strata.This conclusion provides an important basis for further ore prospecting in the periphery of the mine.

关 键 词：重磁资料 评价 找矿预测 翠巍 逊克县 黑龙江省 

分 类 号：P631[天文地球—地质矿产勘探]