东昆仑夏日哈木铜镍硫化物矿的岩矿石极化率特征及其找矿意义  

On the chargeability characteristics of rock and ore from Xiarihamu Cu-Ni sulfide deposit and it's prospecting significance in east Kunlun,Qinghai province

作　　者：吕琴音 敬荣中[1] 

机构地区：[1]桂林理工大学,桂林541000

出　　处：《物探化探计算技术》2015年第2期177-181,共5页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：中国地质调查局科技合作项目(12120113100500)

摘　　要：对于岩浆融离型铜镍硫化矿床,多属"小岩体成大矿"。岩体若小,物探方法寻找该类型岩体、矿体有效性的基础之一就是物性的差异要极为显著。对新近发现的夏日哈木铜镍硫化物矿区的岩矿石,进行了较系统的极化率测定。分别对围岩(变质岩)、矿源岩体(侵入岩)、岩浆侵位过程形成的蚀变岩石以及矿化过程形成的矿石进行了统计分析,发现它们之间具有显著的极化率差异,并且空间上矿体与高极化率基本对应。由此认为,可以使用激发极化法在东昆仑地区寻找矿源岩体及工业矿体。To survey copper and nickel sulfide ore deposits due to magmatic melt mold,we are guided usually by the theory of＂small intrusions forming large deposits＂.If rock mass is small,the effectiveness of the geophysical prospecting method to find the type of rock mass,orebody is one of basic to extremely significant difference in rock physical properties.In this paper, we have taken systematically polarization measurement in Xiarihamu Cu - Ni sulfide deposit area that discovered newly. Through a statistic analysis of polarizability on the surrounding rock （metamorphic rock）,source rock （intrusive rock）,the formation of altered rocks and magmatic emplacement process makes the formation of ore mineralization process.We have found significantly polarizability differences between them,and on the space orebody with high polarizability.So that,the in-duced polarization method can be used in east kunlun area to discovery the source rock and industrial ore bodies.

关 键 词：东昆仑 夏日哈木 小岩体 铜镍硫化物矿体 极化率 

分 类 号：P631.3[天文地球—地质矿产勘探]