铀矿地质2025，Vol.41Issue(6)：1055-1068,14.DOI:10.3969/j.issn.1000-0658.2025.41.073
黑龙江八家子铀矿床中伴生镓的存在形式
Occurrence Forms of Associated Gallium in Bajiazi Uranium Deposit,Heilongjiang
摘要
Abstract
The occurrence and distribution of gallium in sandstone-type uranium deposits remain poorly understood.This study presents a systematic investigation of gallium in uranium ores from the Bajiazi deposit,combining whole-rock geochemistry,petrographic analysis,scanning electron microscopy(SEM),and in-situ microanalysis techniques.Our findings show that gallium concentrations in most uranium ores from Bajiazi meet the minimum grade required for co-production.The gallium-enriched ores are characterized by high clay content and extensive kaolinization.At the microscopic level,gallium demonstrates a strong geochemical affinity to aluminum,and no independent gallium minerals were identified after detecting numerous gallium-rich zones within clay minerals.These observations indicate that gallium in Bajiazi deposit exists primarily in an adsorbed form,with kaolinite serving as the principal host.This work has established a robust approach for determining gallium occurrence in sandstone-type uranium deposits and will support the potential strategies for recovering gallium as a by-product of uranium mining.关键词
镓的存在形式/吸附态/黏土矿物/八家子铀矿床Key words
gallium occurrence forms/adsorbed state/clay minerals/Bajiazi uranium deposit分类
地质学引用本文复制引用
李占龙,邢作昌,刘阳,王睿,张亚南,张字龙..黑龙江八家子铀矿床中伴生镓的存在形式[J].铀矿地质,2025,41(6):1055-1068,14.基金项目
黑龙江省嘉荫县八家子铀矿普查项目(编号:YBZQ[2023]21)和中国核工业地质局项目"漠河-佳木斯盆地群铀成矿环境与远景预测研究"(编号:202446-5)联合资助. （编号:YBZQ[2023]21）
