甘肃北山老君庙北金矿土壤地球化学特征及找矿前景
Geochemical characteristics of soils and prospecting potential of the northern Laojunmiao gold deposit in the Beishan area,Gansu Province
张文斌 1周贤君 1侯翠霞 2王宁祖 1孙平原 1赵振琯 1何碧1
作者信息
- 1. 甘肃省地质矿产勘查开发局第二地质矿产勘查院,甘肃兰州 730000
- 2. 甘肃省矿产资源储量评审中心,甘肃兰州 730030
- 折叠
摘要
甘肃北山老君庙北金矿位于甘肃北山南带,属于塔里木陆块东北缘,为窑洞梁—小西弓古元古代裂谷盆地构造环境.本次找矿通过1∶10 000 土壤地球化学测量工作,圈定了综合异常区5个,综合异常经槽探工程验证,新发现金矿体3条、金银矿体1条、低品位金矿体2条,取得了较好的找矿成果.同时,结合矿区地质、地球化学综合异常特征,建立了以HT1综合异常区为主体的地质—地球化学综合找矿模型,并提出了下一步找矿方向,为矿区深部和外围找矿工作提供了重要的参考依据.
Abstract
Thenorthern Laojunmiao gold deposit is located in the southern zone of the Beishan area,Gansu Province,and on the north-eastern margin of the Tarim block.It resides in a tectonic environment of the Yaodongliang-Xiaoxigong Paleoproterozoic rift basin.This study delineated five comprehensive anomaly zones in the area through a 1:10,000 geochemical soil survey.As verified by trenching exploration,three gold ore bodies,one gold-silver ore body,and two low-grade gold ore bodies were identified in the comprehensive a-nomaly zones,suggesting satisfactory prospecting results.Based on the comprehensive geological and geochemical anomaly characteris-tics of the deposit,this study established an integrated geological-geochemical prospecting model centering on the HT1 comprehensive anomaly zone.Moreover,it proposed the subsequent prospecting direction,providing a significant reference for the deep and peripheral prospecting in the area.
关键词
老君庙北/金矿/土壤/地球化学特征/找矿模型Key words
northern Laojunmiao/gold deposit/soil/geochemical characteristics/prospecting model引用本文复制引用
基金项目
甘肃省地质矿产勘查开发局创新资金项目(2022CX05)
出版年
2024
国家科技期刊平台
NSTL
万方数据