化工矿产地质2025，Vol.47Issue(1)：1-10,10.
西秦岭天水地区猴家沟金矿水系沉积物特征及成矿条件浅析
Analysis of Stream Sediment Characteristics and Metallogenic Conditions of Houjiagou Gold Mine in Tianshui Region of Western Qinling Mountains
摘要
Abstract
Based on the regional geological background,geological characteristics of the mining area,and the test data of gold synthesis anomaly of the stream sediment,a comprehensive analysis is conducted on the study area.The gold mine survey was carried out systematically by means of geological,chemical exploration and engineering disclosure.From the perspective of geochemical anomalies of 1:50000 stream sediment in Houjiagou,the background value of Au elements in the area is 4.9×10-9,which is higher than the crustal abundance value of 4.0×10-9,showing a high background distribution and an obvious element concentration center,which is consistent with the gold ore body discovered at present.It is believed that the second lithologic member[(Z-O)m2]of the Muqitan formation of the Danfeng group of Sinian-Ordovician is the main source bed,and the structural fracture zone is the prerequisite for gold mineralization.The intrusive rock of Yanshanian provide heat source for the activation and migration of Au elements.Further,it is suggested that the main prospective mineralization type of gold prospecting in this area is the medium and low temperature hydrothermal tectonic-altered rock type.The ore-controlling factors and ore-forming prospect of the gold deposit are analyzed comprehensively,and the ore-forming conditions are speculated,which lays a certain foundation for the follow-up work.关键词
成矿条件/水系沉积物特征/猴家沟金矿/西秦岭Key words
Metallogenic conditions/Stream sediment characteristics/Houjiagou gold mine/Western Qinling Mountains分类
地质学引用本文复制引用
张栋梁,吴德海,吴赞华,胡昊,费磊,穆玖清..西秦岭天水地区猴家沟金矿水系沉积物特征及成矿条件浅析[J].化工矿产地质,2025,47(1):1-10,10.基金项目
江西省自然资源厅科技创新项目 南岭成矿带东段寨背岩体精细矿物学与地球化学研究—对铀与稀土成矿作用的约束(编号:ZRKJ20222401) （编号:ZRKJ20222401）
