黑龙江科技大学学报2024，Vol.34Issue(1)：28-35,8.DOI:10.3969/j.issn.2095-7262.2024.01.005
开库康-依西肯地区原生晕地球化学特征及找矿意义
Geochemical characteristics and prospecting significance of primary halo in Kaikukang-Yixiken area
摘要
Abstract
This paper aims to evaluate and explain the secondary geochemical anomalies better for surveying stream sediment,analyze the geochemical characteristics behind ore-forming elements,and e-valuate the ore-bearing potential of major geological units.The study consists of systematically collecting primary halo samples of each geological unit in the study area,as happens when surveying the 1:50000 stream sediment;and conducting geochemical parameter statistics and comparative analysis on ore-form-ing elements.The geochemical characteristics behind the primary halo show that the mineralization in the region relies mainly on the medium and low temperature hydrothermal solution,where existing great feasi-bility of AU mineralization and deposits,and As,Sb and other elements can be used as indicating ele-ments.The ore bearing evaluation results of the main geological units show that the favorable metallogenic locations lie in Upper Jurassic Ershierzhan Formation and Lower Cretaceous Longjiang Formation with the main metallogenic element Au,and the associated element Ag.The results show that by the comparative analysis of stream sediment samples,the four elements of As,Sb,Mn and Mo show obvious secondary enrichment,and the three elements of Zn,Cu and Ti are obviously depleted,which should be appropri-ately increased at anomaly of stream sediment,and to reduce the anomaly threshold.关键词
原生晕/地球化学特征/开库康-依西肯地区/大兴安岭北部Key words
primary halo/geochemical characteristics/Kaikukang-Yixiken area/Northern Great Xing'an Range分类
天文与地球科学引用本文复制引用
李向文,刘涛,王冠,赵建华,王键,闫永生..开库康-依西肯地区原生晕地球化学特征及找矿意义[J].黑龙江科技大学学报,2024,34(1):28-35,8.基金项目
中国地质调查局区域地质矿产调查项目(12120115041801) （12120115041801）
黑龙江省普通高校青年创新人才培养计划项目(UNPYSCT-2020030) （UNPYSCT-2020030）
