云南腾冲勐蚌稀土矿矿体特征及分布规律  

CHARACTERISTICS AND DISTRIBUTION PATTERN OF THE MENGBANG RARE EARTH ORE BODIES IN TENGCHONG,YUNNAN

作　　者：施宗省 苏俊 杨钦瑜 SHI Zong-sheng;SU Jun;Yang Qin-yu(Yunnan Geological Engineering Survey Co.,Ltd.,Kunming 650051;Yunnan Exploration of Geology and Mineral Resources,Kunming 650051)

机构地区：[1]云南省地质工程勘察有限公司,云南昆明650051 [2]云南省地质矿产勘查院,云南昆明650051

出　　处：《云南地质》2024年第1期59-64,共6页Yunnan Geology

摘　　要：腾冲勐蚌稀土矿类型属典型的南方花岗岩风化壳离子吸附型矿床,矿体分布在燕山晚期黑云二长花岗岩体风化壳中全风化层内,受地形地貌影响,总体沿山脊面状分布、两侧倾伏,平面呈不规则条带状,纵向呈透镜状、似层状,随地形起伏。本文通过分析矿区花岗岩风化壳发育特征及稀土矿层地质特征、分布规律,初步探讨其控矿因素及矿体成因。为相邻相似成矿地质背景区域开展稀土矿勘查提供借鉴。The Mengbang rare earth deposit in Tengchong belongs to the ion adsorption type deposit of granite weathering crust.The ore body is distributed in the fully weathered layer of the weathering crust of the late Yanshanian biotite monzonitic granite body,which is affected by the topography and undulates with the topography.The overall distribution is planar along the ridge,and the plane is irregularly banded.In this paper,the ore-controlling factors and ore body genesis are preliminarily discussed by analyzing the development characteristics of granite weathering crust and the geological characteristics and distribution rules of rare earth deposits in the mining area.It provides reference for the exploration of rare earth deposits in adjacent areas with similar metallogenic geological background.

关 键 词：风化壳全风化层 燕山晚期花岗岩体 吸附型稀土矿床 勐蚌稀土矿 云南腾冲 

分 类 号：P618.7[天文地球—矿床学]