中国非金属矿工业导刊Issue(4)：36-40,5.
江西东源伟晶岩风化高岭土矿床成矿地质特征与矿床成因分析
Geological Characteristics and Genesis of the Dongyuan Pegmatite-Weathered Kaolin Deposit in Jiangxi Province
摘要
Abstract
The Dongyuan kaolin deposit is located in Yihuang county,Jiangxi province,at the structural junction of the northern part of the Yushan uplift and the western part of the Wuyi uplift zone.It belongs to the type of weathered sandstone kaolin deposit of pegmatite.This article systematically studies the geological characteristics,ore quality,and mineralization conditions of mineral deposits,revealing their genesis mechanisms and prospecting indicators.Research has shown that the mineralization of Dongyuan kaolin deposit is controlled by multiple factors:① The parent rock is aluminum rich pegmatite,and alkaline feldspar weathering releases Al3+and SiO2,which recombine into kaolinite in weakly acidic aqueous solution;② The subtropical humid and hot climate accelerates chemical weathering,promoting feldspar hydrolysis and impurity leaching;③ Construction activities accelerate physical weathering and groundwater leaching,promoting mineral enrichment;④In terms of topography,the weathered crust on mountaintops and gentle slopes is well preserved,and the gray white low iron weathered layer is an important indicator of high-quality ore bodies.Research suggests that mineral exploration should focus on the weathering crust of pegmatite rock bodies and specific geomorphic units,and combine mineral color tones and chemical composition characteristics.This achievement provides important geological basis for the exploration and development of regional kaolin resources.关键词
伟晶岩/高岭土矿床/矿石质量/风化作用/成因分析/找矿标志Key words
pegmatite/kaolin deposit/ore quality/weathering/genesis analysis/prospecting indicators分类
天文与地球科学引用本文复制引用
余飞..江西东源伟晶岩风化高岭土矿床成矿地质特征与矿床成因分析[J].中国非金属矿工业导刊,2025,(4):36-40,5.基金项目
江西省地质局核与能源类项目"江西省贵溪市余坝地区铀矿普查"(编号:2024HYN04). （编号:2024HYN04）
