地质学报Issue(4)：686-694,9.
南岭地区多金属矿NLSD-2孔综合地球物理测井研究
Integrated Geophysical Logging Study on the Borehole NLSD-2 of the Polymetallic Ore in the Nanling District
摘要
Abstract
The borehole of NLSD-2 is the second scientific drilling hole in the Nanling district,which is disposed by Pangushan demonstration area of Yudu-Ganxian ore district in the eastern of Nanling-verified as a metal exception hole.The whole well (the final depth is 2012.12 m)is implemented a continuous coring and well logging works,and the various physical and chemical parameters of drilling profile,borehole geometry and the images of well wall are achieved by in-situ.The logging projects include:spontaneous potential,natural gamma ray, resistivity, acoustic velocity, density, caliper, inclination, well temperature,ultrasonic imaging,polarization,magnetic susceptibility,borehole three-component magnetic survey logging et al. Combined with the core catalog information, the lithology, polymetallic mineralization belt and fracture zone of the whole well are carefully analysised by using the conventinal logging data The results show that,in the hole NLSD-2 ,the natural gamma ray,acoustic velocity and density logs which have obvious response,can be used to plot the lithology identification crossplot to identify the main lithology of borehole section.In this hole,the polymetallic mineralizations which mainly include scheelite mineralization,wolframite mineralization,pyritemineralization,sphaleritemineralization, molybdenite mineralization and so on,show the combination characteristics of high polarization,low resistivity,the vertical component (ΔZ)and the horizontal component (ΔH’)of magnetic anomaly in the loging figures.And based on these characteristics,the mineralized zone can be effectively divided and evaluated.The log response characteristics of farcture zone are expending caliper,low resistivity,low acoustic velocity and low density,and dark stripe in ultrasound imaging logs.And these features can be used to as an auxiliary flag in the ore prospecting.Therefore,the integrated logging data play an important role in the deep ore prospecting.关键词
南岭/多金属矿/NLSD-2孔/地球物理测井/综合研究Key words
Nanling/polymetallic ore/the borehole NLSD-2/geophysical logging/integrated study引用本文复制引用
周新鹏,汪振斌,黄波,尹道谨,项彪,邹长春,李建国,赵斌,肖昆,刘东明,侯颉,孙少伟..南岭地区多金属矿NLSD-2孔综合地球物理测井研究[J].地质学报,2014,(4):686-694,9.基金项目
本文为国家“深部探测技术与实验研究专项（SinoProbe）”第3项目“深部矿产资源立体探测技术及实验研究”第03课题（SinoProbe-03-03）和中央高校基本科研业务费（2652012096、2652011189）联合资助的成果。 （）
