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巴林左旗碧流台铅锌矿床物化探特征及找矿方向

  • 作者:
  • 张代昕|杨言辰|刘宇轩|王贤伟|陈四末|景泓斐

  • 作者单位:
  • (1. 吉林大学地球科学学院;2. 吉林大学《吉林大学学报(地球科学版)》编辑部; 3. 万城商务东升庙有限责任公司)
  • 基金项目:

  • 中化地质矿山总局地质科技项目(ZHD202302);中国地质调查局发展研究中心项目(中地调研合同〔2020〕第296 号)
  • 详细信息:

  • 作者简介:
  • 张代昕(1998—),男,硕士研究生,研究方向为矿床学;E‑mail:975317209@qq. com
  • 通讯作者:
  • 杨言辰(1965—),男,教授,博士,从事矿床学、矿产普查与勘探方面的研究工作;E‑mail:yyc@jlu. edu. com
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Geophysical and geochemical characteristics and prospecting direction of the Biliutai Lead-Zinc Deposit in Bairin Left Banner

  • English Author:
  • Zhang Daixin¹, Yang Yanchen¹, Liu Yuxuan², Wang Xianwei³, Chen Simo¹, Jing Hongfei¹

  • Unit:
  • (1. College of Earth Sciences, Jilin University; 2. Editorial Office of Journal of Jilin University (Earth Science Edition), Jilin University; 3. Wancheng Business Dongshengmiao Co., Ltd.)
  • 摘要
  • 在线预览
  • 参考文献

摘要:

碧流台铅锌矿床是大兴安岭南段新发现的铅锌矿床,位于黄岗一甘珠尔庙一乌兰浩特成矿带东部,赋存于二叠系林西组浅变质岩系中,主要受到北东向构造控制。通过对矿区1:1万土壤地球化学数据进行参数统计,以及单元素异常分析、聚类分析、因子分析、因子异常分析处理,确定F1因子(Ag-Pb-Zn-Mn组合)异常区为重要的银铅锌找矿标志。通过对高精度磁法测量数据进行化极、延拓、水平一阶导数、垂向二阶导数处理,提取结构面/线性构造、地质体/环形构造。在地质勘查工作的基础上,结合土壤地球化学异常和高精度磁法测量解译结果,提取地质、地球化学、地球物理找矿标志,为进一步找矿方向的确定及工程布置提供依据。

关键词:

铅锌矿床;土壤地球化学;因子分析;高精度磁法测量;中低温热液脉型;找矿标志;找矿方向

Abstract:

The Biliutai Lead-Zinc Deposit, a newly discovered deposit in the southern section of the Greater Khingan Mountains, is located in the eastern part of the Huanggang-Ganjur Temple-Ulanhot metallogenic belt. It is hosted in the shallow metamorphic rock series of the Permian Linxi Formation and primarily controlled by NE-trending structures. By analyzing 1:10 000 soil geochemical survey data through parameter statistics, single-element anomaly analysis, cluster analysis, factor analysis, and factor anomaly analysis, the F1 factor anomaly zone (Ag-Pb-Zn-Mn assembly) was identified as a critical prospecting indicator for silver-lead-zinc mineralization. High-precision magnetic survey data were processed using reduction-to-pole, continuation, horizontal first derivative, and vertical second derivative methods to extract structural planes/inear structures and geological bodies/ring-shaped structures. Building on geological exploration, combined with soil geochemical anomalies and high-precision magnetic survey interpretations, this study integrates geological. geochemical, and geophysical prospecting indicators to provide a basis for determining further prospecting directions and engineering layouts.

Keywords:

lead-zinc deposit; soil geochemistry; factor analysis; high‑precision magnetic survey; medium‑low temperature hydrothermal vein type; prospecting indicator; prospecting direction