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

• Gold-polymetallic Mineralization in Qinling Orogens • Previous Articles     Next Articles

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

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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