摘要
青海景日强玛地区位于雁石坪镇通天河上游一带,雁石坪弧后前陆盆地三级构造单元带。内涉及1处1∶5万水系沉积物异常、3处1∶1万土壤综合异常,异常元素以Pb、Ag、Zn、Sb、Cu为主,相同位置不同比例尺的化探异常,元素对异性、重显性较好,特别是主要的成矿元素Pb和Ag,异常浓集中心显著,异常的强度大。通过对研究区内1∶5万和1∶1万地球化学异常特征和所处地质成矿条件综合分析,结合已有的找矿效果,圈出9条铅银铜矿体。综合分析区内具有成矿有利地层、良好的化探异常,总结找矿标志,指出区内下步找矿方向应以地表找矿为主,钻探深部验证为辅展开工作;寻找中低温热液型铅银多金属矿为主攻方向,对区内下步找矿方向具有较好指示意义。
The Jingri Qiangma area of Qinghai Province is located in the upstream of Tongtian River in Yanshiping Town and the tertiary tectonic unit belt of Yanshiping foreland basin of posterior-arc,which involves one 1∶50000 stream sediment anomaly and three 1∶10000 soil comprehensive anomalies.The abnormal elements are mainly Pb,Ag,Zn,Sb and Cu,and the geochemical exploration anomalies of different scale in the same location have good element anisotropy and heavy dominance.In particular,the main ore-forming elements,Pb and Ag have obvious concentration center and strong anomaly intensity.Through comprehensive analysis of 1∶50000 and 1∶10000 geochemical anomaly characteristics,as well as geological and metallogenic conditions in the area,combining with the existing prospecting effect,circling out 9 lead-silver-copper bodies.Through comprehensive analysis of favorable ore-forming strata and good geochemical exploration anomalies in the area to summarize the prospecting signs.It is found that the next prospecting direction in this area should mainly be surface prospecting,supplemented by deep drilling verification.The main direction is to search for the moderate and low temperature hydrothermal lead-silver polymetallic ore,which has a good indication for the next prospecting direction in the area.
作者
冶建虎
郭海明
田滔
李戬
YE Jianhu;GUO Haiming;TIAN Tao;LI Jian(The Fifth Geological Survey Institute of Qinghai Province,Xining,Qinghai 810099,China)
出处
《中国锰业》
2023年第5期52-58,共7页
China Manganese Industry
基金
青藏专项地质调查资金项目(编号:1212011140095)。
关键词
地球化学异常
找矿效果
景日强玛
找矿方向
Geochemical anomaly
Prospecting effect
King day strong ma
Prospecting direction
