摘要
为对工作程度较低的找矿靶区开展快速评价,针对中国新一轮"攻深探盲"找矿的需求以及矿床"三复杂"的现实,本文介绍了一套以电磁扫面-测深技术为主,磁法、化探等技术为辅的综合地球物理探测组合方法,及其在40余个矿床(点)的应用研究成果。以受岩体控制的小沟铁矿,受构造控制的白音他拉铅锌银矿点、云山金矿为例,详细介绍了应用该方法来识别一些在形态、产状上符合岩体或构造控矿特征的物探异常。同时结合地质研究,指出这些异常对岩体侵入通道、高磁异常体、含矿构造的指示作用。
Mineral exploration work in China has already stepped into a stage of attacking deep layer to find hidden ore bodies.And the ore-forming geological conditions,the geological features of ore deposits,and the terrain of deposit locations are complex and varied.A set of geophysical exploration methods has been integrated on the basis of electromagnetic plane measurement,sounding technologies,supplementing by magnetic and geochemical exploration technologies to rapidly evaluate the prospecting target areas with limited exploration history,and then it is possible to provided useful information on further exploration scheme designing.We have used a comprehensive geophysical exploration method in more than 40 deposits （occurrences）.In this paper,three cases,Xiaogou iron deposit that controlled by intrusion,the Baiyingtala lead-zinc-silver ore occurrence and the Yunshan gold deposit that controlled by fracture zones,have been described as examples.It has been revealed by the geophysical methods that the unique morphology,the occurrence and the scale of the anomalies are consistent with the intrusion and fracture zones.Combined with geological studies,it is suggested that these anomalies could indicate intruded channels,high magnetic bodies and ore structures.Although ore prospecting is difficult,the set of regional applicable mineralization prediction theory and forecasting technology discussed in the paper have an important promoting role in regional prospecting.
出处
《矿物岩石地球化学通报》
CAS
CSCD
北大核心
2014年第5期747-752,共6页
Bulletin of Mineralogy, Petrology and Geochemistry
基金
国家重点基础研究发展计划项目(2013CB429804)
关键词
地球物理勘探
成矿预测
多金属矿床
隐伏矿体
geophysical exploration
mineralization prospect
polymetallic deposit
hidden ore bodies
