Geophysical-geochemical anomaly characteristics and prospecting model of the Narigongma porphyry Cu-Mo deposit in southern Qinghai Province
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摘要: 纳日贡玛地区位于青海南部高寒山区,自21世纪初国土资源大调查以来该区斑岩型矿床找矿取得了较大的进展,发现了一系列铜钼矿床(点),而常规的物化探综合方法在找矿勘查中发挥了重要作用.本区以纳日贡玛铜钼矿为典型矿床,在总结地质、物探、化探等特征指示标志的基础上,建立了该区斑岩型铜钼矿床的地质—物化探找矿勘查模型.该模型在外围找矿预测中取得了良好的应用效果,圈定了12处找矿靶区,部分靶区经工程验证已发现斑岩型铜钼矿体,找矿前景良好.Abstract: Narigongma area is located in the alpine landscape region of southern Qinghai Province. Great progress has been made in the prospecting for porphyry deposits, and a series of Cu-Mo deposits or ore spots have been found in this area since the performance of the land and resources survey. The conventional integrated geophysical and geochemical methods have played a significant role in prospec-ting and exploration. Taking the Narigongma Cu-Mo deposit as a typical example and based on summarizing its characteristic criteria in geology, geophysics and geochemistry, the authors established a geological-geophysical-geochemical comprehensive prospecting model for porphyry Cu-Mo deposits. When the model was applied to periphery prospecting, 12 prospecting targets were delineated. In some of the target areas, a few Cu-Mo spots were found by engineering testing and verification.
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