二甲地区地球物理异常特征及其找矿意义  

CHARACTERISTICS OF GEOPHYSICAL ANOMALIES IN ERJIA AREA AND THEIR SIGNIFICANCE IN ORE-PROSPECTING WORK

作　　者：谢顺胜[1] 杨昌松[1] 陆清[1] 蔡水库[1] 

机构地区：[1]海南省地质调查院,海南海口570206

出　　处：《物探与化探》2007年第B10期66-71,共6页Geophysical and Geochemical Exploration

摘　　要：通过对二甲地区视电阻率中间梯度法、视电阻率联剖法、静电α卡、重力测量等地球物理异常特征的分析,探讨二甲地区寻找破碎带蚀变岩型金矿的最佳物探方法组合,追索圈定戈枕韧性剪切带的分布范围及产状,总结了该区地球物理异常特征与控矿构造带的关系,进而为该区新一轮的地质找矿提供依据。Using such means as apparent resistivity central gradient array method, apparent resistivity combined profiling method, static electric α-card method and gravity measurement, this paper analyzed characteristics of geophysical anomalies in Erjia area. The best method combination for geophysical prospecting was discussed with the purpose of searching for fracture zone altered rock type gold ore deposits in Erjia area. The distribution and mode of occurrence of Gezhen ductile shear zone was outlined, and the relationship between geophysical anomaly characteristics and ore control tectonic belt was pointed out. This paper has provided the foundation for the new- round geological ore-prospecting work in this area.

关 键 词：地球物理探测 蚀变岩型 金矿 

分 类 号：P631[天文地球—地质矿产勘探]