四川马头金矿床构造叠加晕特征及深部找矿预测

    Structural superimposed halo characteristics and deep prospecting prediction of Matou Gold Deposit in Sichuan

    • 摘要: 四川马头金矿床受构造破碎蚀变带控制,经构造叠加晕特征研究,矿体具Cu、Pb、Zn、Ni、Co、W、Mo、As、Sb、Bi、Hg、Sn、Ag、Au等多元素组合特征,其中,As元素与Au元素有较好的相关性,是找矿的指示元素。矿区理想原生晕分带序列为As-Sb-Hg-Ag(前缘晕)→Pb-Cu(近矿晕)→W-Sn-Mo-Bi(尾晕),结合地质工作,建立了1号矿带构造叠加晕模式,在24号勘查线预测深部找矿靶区,通过ZK2405验证了预测靶区的准确性,表明构造叠加晕方法是马头金矿床深部盲矿体找矿有效方法之一。

       

      Abstract: The Matou gold deposit in Sichuan is controlled by tectonic fractured alteration zones. Through research on the characteristics of structural superimposed halos, the orebody exhibits a multi-element association of Cu, Pb, Zn, Ni, Co, W, Mo, As, Sb, Bi, Hg, Sn, Ag, and Au. Notably, As and Au show a good correlation and serve as indicator elements for prospecting. The ideal primary halo zoning sequence in the mining area is As-Sb-Hg-Ag (leading halo) → Pb-Cu (near-ore halo) → W-Sn-Mo-Bi (trailing halo). Combined with geological work, a structural superimposed halo model for Ore Zone No. 1 has been established. The deep prospecting target area has been predicted along Exploration Line No. 24, and the accuracy of the predicted target area has been verified through ZK2405. This indicates that the structural superimposed halo method is one of the effective methods for prospecting deep blind ore bodies in the Matou Gold Deposit.

       

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