Metallogenic Geological Conditions And Metallogenic Prognosis Of Puluwu Fluorite Deposit In Anji County,Zhejiang Province

The Puluwu fluorite mine research area in Anji county is located in the Tianmushan metallogenic belt.The earth structure is Yangzi Zhundi?I₁?,Qiantangtai pleat?II₂?,Anji-Changxing pleat?III₂?,Chun'an-Changxing pleat bundle?IV₁?,It is an important fluorite metallogenic area in northwestern Zhejiang.However,the research work on prospecting prediction in this area is slightly insufficient,which seriously restricts the progress of mineral exploration in this area.Based on modern mineralization and metallogenic prediction theory,this study comprehensively analyzes the stratigraphic,tectonic,magmatic,ore-forming fluids and metallogenic related information in the study area,and simultaneously carries out field geological mapping and geophysical exploration.Work on profile measurement,etc.,mainly draws the following conclusions:1.The formation of the Puluwu fluorite ore is closely related to the Yanshan early fine-grained granite exposed in the study area,which provides the required F and Ca for mineralization.2.The type of fluorite deposit in the study area is the hydrothermal fissure-filled deposit after the magma period.The ore bodies are mainly lenticularly filled in the northeast direction F₁ fault zone and parallel secondary faults.The ore body shape is strictly controlled by faults,which has important guiding significance for finding fluorite deposits.3.Atmospheric precipitation gradually evolves into geothermal water along the infiltration process of the fissure,and is leached and dissolved into minerals from the rock,eventually forming a fluorite deposit.4.In terms of metallogenic prediction,based on the summary of metallogenic geological conditions,combined with field geological survey,physical and chemical exploration profile measurement?visual resistivity combined profile measurement,soil geochemical profile measurement?and other comprehensive evaluation methods,The area has carried out metallogenic prediction,and the northeast-to-F element anomaly area has been designated as a prospecting prospect,and whether there are concealed ore bodies,further engineering verification is needed.Figure[20]table[5]reference[69]...