浅析山西神池一带矽卡岩型铜铁多金属矿成矿地质特征

Analysis of Metallogenic Geological Characteristics of Skarn Copper-Iron Polymetallic Deposits in Shenchi Area, Shanxi Province

山西神池一带铜铁多金属矿大地构造位于华北地台吕梁-太行断块西北角的偏关-神池块坪,出露地层以寒武系、奥陶系为主,局部残留石炭系,新生界分布较广。北东向构造为该区主要构造,主要有利民堡断层和上八角断层。燕山期中酸性侵入岩分布于本区中部。矿体主要赋存于岩浆岩与寒武系、奥陶系地层接触的破碎蚀变带内,矿床的形成与燕山期岩浆岩活动有着密切的成因关系。文中分析了该矿床的地质特征,总结了矿床成因及找矿标志,以期为区内的地质找矿工作提供一定的参考价值。

The copper-iron polymetallic deposit in Shenchi area of Shanxi Province is located in the Pianguan-Shenchi block flat at the northwest corner of the Luliang-Taihang fault block of the North China platform. The outcropped strata are mainly Cambrian and Ordovician, with partial residual Carboniferous and wider Cenozoic distribution. The NE-trending structure is the main structure in this area, mainly the Liminbao fault and the Upper Octagonal fault. The Yanshanian intermediate-acid intrusive rocks are distributed in the central part of the area. Ore bodies mainly occur in fractured alteration zones where magmatic rocks contact with Cambrian and Ordovician strata. The formation of ore deposits is closely related to Yanshanian magmatic activities. In this paper, the geological characteristics of the deposit are analyzed, and the genesis and prospecting criteria of the deposit are summarized in order to provide some reference value for the geological prospecting work in the area.