内蒙古喀喇沁旗金蟾山金矿构造叠加晕异常特征及找矿预测

doi:10.11720/wtyht.2025.1067

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Abstract

The Jinchanshan gold deposit, identified as a magmatic-hydrothermal vein-type gold deposit associated with Yanshanian magmatism, is located in the Chifeng-Chaoyang gold ore concentration area within Harqin Banner, Inner Mongolia. The ore bodies in the deposit primarily occur in the fault structural zone of the Anjiayingzi pluton. This study conducted a systematic analysis of the structural superimposed halo anomalies of the Dawa and Limazigou ore sections from south to north in the eastern mineralized zone in the Jinchanshan gold deposit. Results indicate that the axial zoning and characteristic parameters of primary haloes in Jinchanshan gold deposit differ from the typical high-, medium-, and low-temperature element axial zoning sequence in hydrothermal deposits. The overlapping of high-temperature and low-temperature elements, suggests multi-stage and multi-phase mineralization processes. For the first time, this study analyzed the correlation between elements using element correlation curves at varying elevations. F and Ba were identified as front halo elements, Au, Cu, and Ag as near-ore halo elements, and Co, Ti, and V as tail halo elements. By establishing a structural superimposed halo model, this study determined prospecting target areas. Mining validation indicates that the identified ore-discovery middle section aligns with the predicted target area.

Key words： gold deposit structurally superimposed halo geochemical axis deep prediction Jinchanshan

Received: 28 February 2024 Published: 22 July 2025

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	Yu-Jiao SHI
	Jiang-Bo ZHANG
	Song-Shu ZHONG
	Ke-Nan TIAN
	Guo-Qing XI
	Qi-Ming ZHOU
	Li-Ke ZHAO
	Jian-Chao WANG
	Fang-Fang YANG

Cite this article:

Yu-Jiao SHI,Jiang-Bo ZHANG,Song-Shu ZHONG, et al. Structural superimposed halo anomalies and prospecting prediction of Jinchanshan gold deposit, Harqin Banner, Inner Mongolia, China[J]. Geophysical and Geochemical Exploration, 2025, 49(3): 569-577.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2025.1067 OR https://www.wutanyuhuatan.com/EN/Y2025/V49/I3/569

Geological sketch of ore field

Geological map of Jinchanshan gold mine

V-2# vein four middle section along the vein tunnel sampling location sketch map

Statistical table of analysis results of qualified rate of sample detection

Ⅴ-2# vein axial zoning index

Correlation analysis diagram of different elevation elements in Jinchanshan gold deposit

Sketch and anomaly curve of V-2 # vein primary superimposed halo section of Limazigou ore section in Jinchanshan gold deposit

Vertical projection diagram of superimposed halo of Limazigou V-2 # vein in Jinchanshan gold deposit

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