摘要
全方位激电测井是勘查深部硫化物型金属矿的重要手段之一,在了解物性参数的前提下,利用其距异常源近、干扰小等优势,能有效的发现钻孔旁侧及井底隐伏的盲矿体。老挝华潘省铜铁多金属矿床的勘查实例表明全方位激电测井在黄铁矿、黄铜矿化富集的岩段均对应出现高极化异常,并能对其空间赋存状态做出判断,与钻孔编录结果吻合较好;利用井底方位曲线的"正张开"特性指导钻孔工程,发现了井底盲矿体,避免漏矿事件的发生。
Comprehensive 5-direction IP logging is one of the important methods for exploration of sulfide type ore deposits.Blind and concealed ore bodies can be found by using its advantage of high SNR and on the premise of understanding the physical parameters.The practical example of the exploration of a Cu-Fe polymetallic deposit in Houa Phan Province of Laos shows that the 5-direction IP logging curve is in accordance with the drilling result.The enrichment sectors of pyrite and chalcopyrite are all associated with high polarization anomalies,and a comprehensive analysis can determine the position of the blind ore body.This exploration is a successful case of discovering hole bottom blind ore body under the guidance of 5-direction IP logging.
出处
《物探与化探》
CAS
CSCD
2012年第1期23-26,共4页
Geophysical and Geochemical Exploration
关键词
多金属矿勘查
铜铁矿床
全方位激电测井
盲矿体
老挝华潘省
polymetallic ore exploration
Cu-Fe polymetallic deposit
5-direction IP
blind ore body
Houa Phan Province in Laos
