云南腾冲大秧田铷矿地质特征及成因浅析  

GEOLOGICAL CHARACTERISTICS AND ORE GENESIS ANALYSIS OF THE DAYANGTIAN RUBIDIUM DEPOSIT IN TENGCHONG,YUNNAN

作　　者：杜斌 李凤冠 毕晓路 段召艳 DU Bin;LI Feng-guan;BI Xiao-lu;DUAN Zhao-yan(Yunnan Institute of Geological Survey,Kunming 650216;Kunming University of Science and Technology,Kunming 650031;Tengchong Jinshan Geology and Mineral Technology Service Co.,Ltd.,Tengchong 679199)

机构地区：[1]云南省地质调查院,云南昆明650216 [2]昆明理工大学,云南昆明650031 [3]腾冲县金山地矿科技服务有限责任公司,云南腾冲679199

出　　处：《云南地质》2025年第1期92-95,共4页Yunnan Geology

摘　　要：腾冲大秧田铷矿体形态及矿石特征显示大秧田花岗岩体即为铷矿(化)体、近地表为风化壳型铷矿体,主要含铷矿物为钾长石、钠长石和云母。通过矿床成因解析,成矿物质来源于富稀有金属、有色金属的酸性岩浆,岩浆沿断裂构造上升形成的岩浆期后流体为铷矿进一步富集提供了条件,高黎贡山群、石炭系碎屑岩提供了良好的盖层,较好的保存了含铷流体,形成花岗岩型铷矿床。The Dayangtian granite in Tengchong hosts Rb mineralization,with weathering crust-type Rb orebodies near the surface.Major rubidium-bearing minerals include K-feldspar,albite,and mica.Genetic analysis indicates that the metallogenic material originated from acidic magma enriched in rare and base metals.Post-magmatic fluids ascending along fractures facilitated Rb enrichment,while the Gaoligongshan Group and Carboniferous clastic rocks acted as effective cap rocks,preserving rubidium-bearing fluids and forming granite-hosted Rb deposits.

关 键 词：铷矿 花岗岩 矿体特征 矿床成因 大秧田铷矿 云南腾冲 

分 类 号：P618.77[天文地球—矿床学]