安徽地质2024，Vol.34Issue(3)：197-202,6.
皖南姚家塔萤石矿矿床地质特征及成矿时代研究
Geological characteristics and metallogenic age of the Yaojiata fluorite deposit in southern Anhui
摘要
Abstract
The Yaojiata fluorite deposit in Langxi County is a representative fluorite deposit in the fluorite metallogenic belt in southern Anhui. This paper delves into the geological characteristics,diagenetic and metallogenic ages of the deposit and reveals that it is controlled by the NE-trending faults,and the ore bodies occur along these faults,exhibiting two distinct ore-forming stages:the early stage of crystallization of purple fluorite,and the late green fluorite. The predominant ore types are fluorite and quartz-fluorite,with wall rock alterations of silicification,sericite,kaolinization and illitization. As a middle-and low-temperature fissure-filling hydrothermal deposit,it formed at(98±19)Ma,significantly later than the Yaocun rock mass(ca. 127 Ma),indicating post-magmatic hydrothermal mineralization.关键词
皖南/萤石矿/姚村岩体/Sm-Nd同位素Key words
southern Anhui/fluorite deposit/Yaocun rock mass/Sm-Nd isotopes分类
天文与地球科学引用本文复制引用
马良,李加好,贾国庆,魏国辉..皖南姚家塔萤石矿矿床地质特征及成矿时代研究[J].安徽地质,2024,34(3):197-202,6.基金项目
安徽省自然资源科技项目"皖南地区萤石矿地质成矿特征及找矿方向研究"(编号:2023-K-14)和安徽省公益性地质工作项目"安徽宣城地区萤石矿资源调查评价项目"(编号:2021-g-1-3)联合资助 （编号:2023-K-14）
