闽北大坪萤石矿构造蚀变、岩石地球化学特征与矿床成因探讨  

Discussion on structural alteration, rock geochemistry characteristics and genesis of Daping fluorite deposit in northern Fujian

作　　者：张青松 王春连[2] 栗克坤 刘增政 冯校辉 闫晓博 韩志坤 蒋济勇 江建浪 ZHANG Qing-song;WANG Chun-lian;LI Ke-kun;LIU Zeng-zheng;FENG Xiao-hui;YAN Xiao-bo;HAN Zhi-kun;JIANG Ji-yong;JIANG Jian-lang(Henan Geological Bureau of CCGMB,Zhengzhou 450000,China;MNH Key Laboratory of Metallogeny and Mineral Assessment,Institute of Mineral Resources,Chinese At-ademy of Geological Sciences,Beijing 100037,China;Henan Institute of Geophysical and Spatical Infomiation,Zhengzhou 450000,China)

机构地区：[1]中化地质矿山总局河南地质局,河南郑州450000 [2]中国地质科学院矿产资源研究所,自然资源部成矿作用与资源评价重点实验室,北京100037 [3]河南省地球物理空间信息研究院,河南郑州450000

出　　处：《岩石矿物学杂志》2021年第6期1131-1140,共10页Acta Petrologica et Mineralogica

基　　金：中央级公益性科研院所基本科研业务费专项(KK2005);地质调查局地质矿产调查评价专项项目(DD20190816,DD20190817,DD20190606)。

摘　　要：为了探讨闽北大坪萤石矿构造蚀变带特征及萤石矿成因,对大坪萤石矿构造蚀变带内各岩性的主量元素、稀土元素、微量元素特征进行了分析。研究结果表明,大坪萤石矿受构造控制,蚀变主要有绢云母化、硅化、萤石矿化,萤石矿化带具有稀土元素总量低、重稀土元素富集、高CaO、F等特征。根据萤石矿矿石构造及其蚀变特征,认为大坪萤石矿至少包括3个成矿期次,属于岩浆期后中低温热液充填型矿床。In order to discuss the characteristics of the tectonic alteration zone and the origin of the fluorite deposit in Daping, North Fujian, the characteristics of major, rare earth and trace elements in the tectonic alteration zone of Daping fluorite deposit are studied. The results show that the alteration of Daping fluorite ore is mainly consisted of sericitization, silicification and fluorite mineralization, and that the fluorite mineralization zone is characterized by low total rare earth elements, enrichment of heavy rare earth elements and high CaO and F contents. According to the ore structure of fluorite mine and its alteration characteristics, it has proved that the Daping fluorite deposit consists of at least three ore-forming stages, and belongs to the post-magmatic mesothermal-epithermal filling type.

关 键 词：大坪萤石矿 含矿构造 蚀变 成因 

分 类 号：P619.215[天文地球—矿床学]