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现代地质 ›› 2021, Vol. 35 ›› Issue (06): 1515-1522.DOI: 10.19657/j.geoscience.1000-8527.2021.118

• 秦岭金——多金属成矿作用 • 上一篇    下一篇

陕西铧厂沟金矿南矿带构造叠加晕特征及深部找矿方向

胡博心1(), 周鸿飞2, 屈海浪1, 曹易刚1, 白会良1, 王凌童3, 王立新3, 杨昭克1, 李元申1   

  1. 1.北京金有地质勘查有限责任公司,北京 100011
    2.中国地质大学(北京) 地球科学与资源学院,北京 100083
    3.陕西略阳铧厂沟金矿有限公司,陕西 略阳 724312
  • 收稿日期:2021-07-08 修回日期:2021-10-15 出版日期:2021-12-10 发布日期:2022-02-14
  • 作者简介:胡博心,男,工程师,1991年出生,资源勘查工程专业,从事金矿地质勘查及找矿研究。Email: 834164323@qq.com
  • 基金资助:
    中国黄金集团有限公司地质科研项目“陕西略阳铧厂沟金矿矿山综合地质及成矿地质条件研究和找矿预测”(WKY201704)

Characteristics of Structural Superimposed Halos and Deep Prospecting Direction in the South Ore Zone of Huachanggou Gold Deposit, Shaanxi Province

HU Boxin1(), ZHOU Hongfei2, QU Hailang1, CAO Yigang1, BAI Huiliang1, WANG Lingtong3, WANG Lixin3, YANG Zhaoke1, LI Yuanshen1   

  1. 1. Beijing Jinyou Geological Exploration Co.,Ltd., Beijing 100011, China
    2. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
    3. Huachanggou Gold Mine of Lueyang County, Lueyang, Shaanxi 724312, China
  • Received:2021-07-08 Revised:2021-10-15 Online:2021-12-10 Published:2022-02-14

摘要:

陕西略阳铧厂沟金矿Au Ⅰ矿体主要赋存于泥盆系三河口群第一岩性段第二岩性层中-薄层状微晶灰岩、泥质灰岩、中-厚层状结晶灰岩中。Au Ⅰ矿体作为矿山目前的主采矿体,其深部找矿方向还需要进一步研究。为指导铧厂沟金矿南矿带Au Ⅰ矿体深部找矿工作,对Au Ⅰ矿体进行了元素相关性分析、R型聚类分析以及R型因子分析和构造叠加晕研究。结果表明,As、Sb为前缘晕元素组合,Au、Ag、Pb为近矿晕元素组合,W、Sn、Bi为尾晕元素组合。Au Ⅰ矿体原生晕轴向分带序列从上至下为Sb-Pb-Co-Ag-As-Au。结合成矿元素空间分布特征,认为Au Ⅰ矿体在48线—96线深部存在头尾晕叠加特征,据此提出铧厂沟金矿南矿带Au Ⅰ矿体下一步找矿方向为96线—112线深部。

关键词: 西秦岭, 陕西铧厂沟金矿, 构造叠加晕, 深部找矿

Abstract:

The Au Ⅰ orebody of Huachanggou gold mine in Lueyang County, Shaanxi Province mainly occurs in the medium-thin bedded microcrystalline/argillaceous limestone and medium-thick bedded crystalline limestone in the second member of the Devonian Sanhekou Group (first formation). As the main orebody, the deep prospecting direction of Au Ⅰ orebody needs to be further studied. Therefore, this study conducted element correlation analysis, R-type cluster analysis, R-type factor analysis, and structural superposition halo research on the Au Ⅰ orebody. The results show that As and Sb are front halo element assemblage, and that Au, Ag and Pb are near ore halo element assemblage; W, Sn and Bi are tail halo element assemblage. The axial zoning sequence (from top to bottom) of the primary halo in Au Ⅰ orebody is Sb, Pb, Co, Ag, As, and Au. Combined with the spatial distribution characteristics of ore-forming elements, we considered that the Au Ⅰ orebody has the characteristics of head-tail halo superposition at depth of prospecting lines 48-96 and 16-32. Therefore, we proposed that the future prospecting direction of Au Ⅰ orebody in the South Ore Belt is at depth of prospecting lines 96-112 and 16-32.

Key words: west Qinling, Huachanggou gold mine in Shaanxi, structural superimposed halo, deep prospecting

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