CAJ | 학술논문

与条带状含铁建造（BIF）伴生的金矿产量约占世界黄金总产量的13%，而坦桑尼亚近1/3的黄金产量来自于 BIF 型金矿。通过对坦桑尼亚环维多利亚湖南部某区域航空磁力异常特征分析，结合研究区地质背景，解译了与金矿有关的 BIF 序列赋存范围，进而划定为地面找矿靶区；该区内沼泽性黑土和风化层覆盖较厚，利用赋矿岩石与围岩磁性差异显著的特点，地面磁测圈定了与金矿有关条带状含铁建造的分布位置；其磁测成果反映的ΔT 异常清晰、形态规整且可信度高，为钻探工程布置提供了强有力的依据，目前，矿区已探明（332＋333）金金属资源量34 t。同时，矿区外围磁力异常的分布特征进一步指示该区域内仍具有很大的找矿潜力，航空和地面磁力测量发挥了间接寻找隐伏含铁建造型金矿床的重要作用，是寻找 BIF 型金矿行之有效地勘探方法，对在矿区外围及其他类似地区进行间接寻找隐伏含铁建造型金矿具有非常重要的指导意义。
여조대상함철건조（BIF）반생적금광산량약점세계황금총산량적13%，이탄상니아근1/3적황금산량래자우 BIF 형금광。통과대탄상니아배유다리아호남부모구역항공자력이상특정분석，결합연구구지질배경，해역료여금광유관적 BIF 서렬부존범위，진이화정위지면조광파구；해구내소택성흑토화풍화층복개교후，이용부광암석여위암자성차이현저적특점，지면자측권정료여금광유관조대상함철건조적분포위치；기자측성과반영적ΔT 이상청석、형태규정차가신도고，위찬탐공정포치제공료강유력적의거，목전，광구이탐명（332＋333）금금속자원량34 t。동시，광구외위자력이상적분포특정진일보지시해구역내잉구유흔대적조광잠력，항공화지면자력측량발휘료간접심조은복함철건조형금광상적중요작용，시심조 BIF 형금광행지유효지감탐방법，대재광구외위급기타유사지구진행간접심조은복함철건조형금광구유비상중요적지도의의。
Production of associated gold with BIF accounts for around 13% of the world’s gold production, almost one third of the gold production in Tanzania is from stripped iron formation gold mine.Through analysis of characteristics of aeromagnetic anomalies in south of Lake Victoria in Tanzania combined with regional geological background,occurrence scope of BIF sequence related to gold ore was interpreted,and then target prospecting area was determined.It was found that the coverage of swampy black soil and weathering was thick in the study region.In addition,we applied magnetic differences significant characteristics of ore rock and surrounding rock to delineate distribution location of iron formation related to the gold mine by ground magnetometry.The results demonstrated that the form of abnormal ΔT was clear with morphology in order and high credibility,which provided a strong basis for drilling engineering arrangement,and the mining area has proven (332+333)34 t gold metal resources presently.Meanwhile,the distribution characteristics of mining area peripheral magnetic anomalies indicated great potential for prospecting in the area of aviation.Air,ground magnetic survey in searching for iron formation gold deposits played an important role,which was efficient exploration methods for looking for the BIF deposits,and the methods had extremely important guiding significance for searching for iron formation gold deposits in the mining area periphery and other similar areas.