Discussion on the Ore-controlling Factors and Prospecting Direction of Fluorite Deposit of Huangjiawan Area in Zhenfeng,Guizhou Province
Based on the deep exploration data of the Huangjiawan fluorite deposit in the Zhenfeng anticline in recent years,through the analysis of the types of ore-controlling structures and their ore-controlling func-tions,the study on the ore-conducting structures and host space law of the fluorite deposit is carried out,it is considered that the main ore-controlling factors are NW Zhenfeng anticline,NW F1 fault,secondary anticline and favorable lithologic assemblage,forming the thrust-secondary anticline structural assemblage style of anti-cline structures,the NW Zhenfeng anticline and its associated NW F1 fault together with the secondary Huangjiawan anticline form a hydrothermal upwelling channel and ore-hosting space.The Zhenfeng anticline is the most important ore-controlling structure in the mining area,which is formed by the main ore-controlling faults(F1 et al)and the secondary ore-controlling anticline(Huangjiawan anticline),and the thrust fault F1 is the most important ore-guiding structure The altered breccia in the first member(P3l)middle-upper part of the Longtan Formation is an important ore-hosting space,which controls the thrust fault-secondary anticline structure assemblage in the anticlinal structure of the deposit,and the ore-hosting space in the first member(P3l)middle-upper part of the Tarim Formation,it will be the main target of fluorite exploration in the fu-ture.Further study on ore-controlling factors such as structure(anticline+fault)and stratigraphic-lithologic association is beneficial to expanding regional prospecting ideas and providing references for prospecting of deep fluorite,gold and antimony hydrothermal deposits.
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