地质与勘探2018,Vol.54Issue(3):512-521,10.
内蒙古乌拉特中旗284东金矿区综合信息找矿模型
A Prospecting Model Based on Comprehensive Information for the 284 East Gold Deposit in Wulate Middle Banner of Inner Mongolia
摘要
Abstract
Located in the north of Wulate Middle Banner,Inner Mongolia,the 284 east mine area has no major breakthrough in geological exploration since the discovery of gold mineralization. In this work,through the study of geological data and field geological reconnaissance,it is found that there may be ore omission in the previous exploration. So the samples of construction drilling holes have been collected and analyzed again,confirming that the car-bonaceous phyllite layer is a gold-bearing horizon. The newly found medium - sized gold deposit is 500m long with slant depth of 500m. With high po-larization and low resistivity characteristics,the carboniferous phyllite strata are controlled strictly by the Burgho Obo reverse fault (F9fault),distributed a-long the contact zone of rock and strata,showing obvious alteration zoning. Au,Ag,Cu,Ni and Pb in the area are high in abundance and strong in differ-entiation. The high background area of Au and As combination extends in NE direction,which is consistent with the main ore-control fault,presumably related to the migration and enrichment of ore-bearing hydrothermal fluid along cracks. Based on the comprehensive analysis of geological,geophysical and geochemical characteristics,a prospecting model for the 284 East gold deposit is established, and the main line of geological prospecting is put for-ward, which provides a train of thoughts for future prospecting.关键词
284东矿区/炭质千糜岩/布尔罕特敖包逆断裂(F9断裂)/找矿模型/内蒙古Key words
284 east mine area/carbonaceous phyllonite/Burgho Obo reverse fault (F9fault)/prospecting model/Inner Mongolia分类
天文与地球科学引用本文复制引用
鲍中义,曹德强,卢贺,范家盟,郭志峰,刘彩杰,闫春明,刘国栋,李山..内蒙古乌拉特中旗284东金矿区综合信息找矿模型[J].地质与勘探,2018,54(3):512-521,10.基金项目
山东省第六地质矿产勘查院"内蒙古自治区乌拉特中旗布尔罕特敖包断裂带金成矿规律及找矿方向研究"项目(编号:2017KY101)资助. (编号:2017KY101)