Deposit Characteristics and Ore-controlling Factors of Calcite-fluorite Ore in Hekeng-Jixia Ore Section of Jiangle County
The Hekeng-Jixia ore section is located in the Hekeng-Caodi mining area in Jiangle Coun-ty,Fujian Province.It is part of the Jiangle-Pucheng ore concentration area in the central and southern sec-tion of the Wuyi metallogenic belt.On the basis of briefly describing the regional geological background,the characteristics of calcite-fluorite deposit are analyzed from the aspects of ore body,ore and wall rock altera-tion.Based on this,the ore-controlling factors of Hekeng-Jixia ore section are summarized,and the genesis of the ore section is preliminarily studied.It is found that three contact metamorphic calcite ore bodies and four fluorite ore bodies(skarn type+filling type deposits)are developed in the ore section.The main ore-bearing strata are the early Triassic Xikou Formation,which is also controlled by the late Jurassic syenogran-ite or skarn.The ore-controlling and ore-bearing structures are dominated by NE-NEE reverse fault zones,and have silicification,calcite or fluorite mineralization,and skarnization.This study has certain reference significance for finding concealed ore bodies in the periphery of the ore section or delineating the prospect-ing target area of similar mining areas.
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