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自然重砂测量是矿产勘查的有效手段之一。然而在实际找矿工作中,目标矿物往往由于其自身的物理、化学特性,在重砂样品中不能得到充分的反映。如何根据所发现的重矿物组合,探寻某些特定成矿模式下有用矿产的存在,充分发挥自然重砂测量在矿产资源调查中的作用是一个值得探讨的问题。从相广锰—银矿床锰、银矿物的赋存状态、富集规律、共生关系出发,试图建立一个适用于华北地台北缘火山热液充填型锰—银矿床的重砂综合找矿模型。
Natural heavy sand measurement is one of the effective means of mineral exploration. However, in the actual prospecting work, the target minerals are often not fully reflected in the heavy sand samples due to their own physical and chemical properties. How to explore the existence of useful minerals in some specific metallogenic models based on the discovered heavy mineral assemblages and to fully exploit the role of natural heavy sand measurement in the investigation of mineral resources is an issue worth exploring. Based on the occurrence, enrichment and symbiosis of manganese and silver minerals in the Guang-Manganese-Ag deposits, an attempt was made to establish a comprehensive sand prospecting model suitable for volcanic hydrothermal-type manganese-silver deposits in the northern margin of the North China Platform.