摘要
安徽庐江黄屯金铜矿为一隐爆角砾岩筒型矿床,位于庐枞盆地东北缘的黄屯地区。本文在全面收集已有的地质资料基础上,建立矿体三维模型,阐述了黄屯金铜矿体的空间形态特征;综合分析了角砾岩筒内钻孔岩心矿化信息及角砾形状、粒径、拼合性等特征,将其垂向上分为裂隙相、震碎相和爆破相三个类别,并预测其深部可能存在斑岩型矿床。结合该区物探、地质综合剖面资料,根据隐爆角砾岩筒多以成群出现的特点,推断其他隐爆角砾岩筒可能产出的位置,从而达到进一步找矿的目的。
The Huangtun gold-copper deposit,Lujiang,Anhui Province is a cryptoexplosion breccia pipe deposit located in the Huangtun area in the northeast margin of the Lu-Zong Basin.Based on complete collection of the existing geological borehole data,a three-dimensional model of the ore body is established to outline the features of its spatial form.By comprehensive analysis of the information on the drill core mineralization in the pipe,and of the characteristics of the shapes,particle sizes and cementation of the sharp fragments,the pipe is vertically divided into three facies,such as fracturing,crushing and blasting facies,and a porphyry deposit is thought to sit in the deep part.On the basis of the data on geophysical exploration and geologically integrated profile,and according to the characteristic that most of the cryptoexplosion breccia pipes appear in groups,other cryptoexplosion breccia pipes can be located by prediction,so as to achieve the purpose of extending the range of ore prospecting.
作者
王昭
许强平
张国强
李飞
WANG Zhao;XU Qiang-ping;ZHANG Guo-qiang;LI Fei(No.327 Unit,Bureau of Geology and Mineral Exploration of Anhui Province,Hefei,Anhui 230011,China;Jinding Mining Company Limited of Anhui Province,Hefei,Anhui 231555,China)
出处
《安徽地质》
2022年第3期193-196,208,共5页
Geology of Anhui
基金
中国地质调查局项目“安徽黄屯地区深部矿产调查与找矿预测(编号:121201004000160901-10)”资助。
关键词
金铜矿
空间形态
找矿方向
黄屯
gold-copper deposit
spatial form
exploration targeting
Huangtun
