地质通报2024，Vol.43Issue(2)：233-245,13.DOI:10.12097/gbc.2022.02.001
辽宁新房金矿床原生晕地球化学特征及对深部找矿的指示
Geochemical characteristics of primary halo and indication of deep prospecting in Xinfang gold deposit,Liaoning Province
摘要
Abstract
The Xinfang gold deposit is a large gold deposit on the southern edge of the Liaodong Peninsula,China.It consists of five vein belts including 22,23,24,25 and 27.The main ore bodies in the study area have been discovered,and energy enhancement and storage have become the factors restricting the continuous service of the mines.There is an urgent need for the deployment of drilling works in the process of ore deposit exploration to be based on scientific and effective mineralization prediction.This paper analyzes the geochemical characteristics of primary halo and zoning pattern of mineralization halo elements from 14 drillings within No.106 exploration line section in Xinfang gold deposit.Based on geochemical characteristics of primary halo,establish the axial zoning sequence and make prospecting prediction in the depth of the No.106 exploration line section.The study shows that the frontal elements are As,Sb,Hg,the near-ore indicator elements are Au,Ag,Cu,Pb,Zn and the rear elements are W,Mo,Bi in the Xinfang gold deposit.Axial zonation sequence of five lodes(including lode 22,23,24,25 and 27)derived from the Grigorian's zoning index method all present reverse zoning phenomenon,which are probably caused by multiple phases of mineralization.Stronger frontal halos and near-ore halos appear in the middle and lower part of lode 22,23,24 and 27,and the axial geochemical parameters of As/W,As/Mo,Sb/W,(As×Sb)/(Mo×W)have multiple oscilation fluctuations and increasing in the depth,which indicate better prospecting potential for those lodes in the depth.These features suggested that the ore bodies formed by multiple hydrothermal mineralization stages and some ore bodies may extend to the depth on the east side of No.106 exploration line section.关键词
原生晕/地球化学特征/深部找矿/新房金矿床/矿床勘查工程/辽东半岛Key words
primary halo/geochemical characteristics/deep prospecting/Xinfang gold deposit/mineral exploration engineering/Liaodong Peninsula分类
天文与地球科学引用本文复制引用
杜宛鸽,吕志成,颜廷杰,姚晓峰,林成贵,马一行,王学强,严康..辽宁新房金矿床原生晕地球化学特征及对深部找矿的指示[J].地质通报,2024,43(2):233-245,13.基金项目
国家重点研发计划项目《华北克拉通辽东/胶东重要成矿区带金多金属矿深部预测及勘查示范》(编号:2018YFC0603806)、中国地质调查局项目《重要锡、锰等矿集区矿产地质调查》(编号:DD20190166)和《甘肃李子园-花崖沟金矿重点调查区调查评价》(编号:DD20230379) （编号:2018YFC0603806）
