浙江松阳萤石矿床地质特征及成矿条件分析

对浙江松阳火山构造洼地附近玉岩萤石矿床地质特征进行了详细的野外调查和室内研究。矿床主要产于上侏罗统磨石山群大爽组和高坞组火山凝灰岩的断裂构造中,空间分布上具有以燕山期侵入体为中心呈环状分布等特点。结合浙西地区萤石矿床同位素和包裹体测温等资料,认为矿床为典型的浅层低温热液矿床。矿床的成因与火山洼地周围具有大量的环状断层有关。浙西南地区燕山期的火山活动频繁,可为该区萤石矿的形成提供能量、热量、成矿物质来源及容矿空间,具有比较优越的成矿地质条件。

Geological Characteristics and Metallogenic Condition in Fluorite Ore Deposit of Songyang

A detailed field exploration and lab research is carried out to study the geological characteristics of fluorite deposits of Songyang volcanic depressions in Zhejiang province.Ore deposits are mainly situated in the faults of Dashuang formation,Moshishan Group and Gaowu Group pyroclastic rocks in Upper Jurassic.Spatial pattern shows circular distribution around Yanshanian intrusive bodies.The ore-deposit is a typical shallow low-temperature hydrothermal deposit.The cause of deposit is related with ring fault around volcanic depression.The volcanic activates of southwest Zhejiang province during the period of Yanshan are frequent,which can provide energy,heat,sources of metallogenic materials and ore-containing space with a advantage background of geological mineralization.