Occurrence and Formation of Metallic Nanoparticles Over the Concealed Ore Deposits
Occurrence and Formation of Metallic Nanoparticles Over the Concealed Ore Deposits
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隐伏矿床金属纳米粒子的赋存与形成
DOI：
10.1166/jnn.2017.14458
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发表时间：
2017-09
影响因子：
--
通讯作者：
Han Z X
中科院分区：
文献类型：
--
作者：
Lu M;Ye R;Zhang B M;Yao W S;Han Z X
金属纳米粒子广泛存在于金矿、铜镍矿和斑岩铜矿等隐伏矿床的土壤和地气中。它们在形状、大小、内部结构和组合特征上具有相似性，是稳定的成矿元素形式。同时，由于土壤中的纳米颗粒具有相同的特征，因此可以认为它们来自矿体。纳米颗粒被上升的地气从深部通过覆盖层向上输送到地表，部分留在地气中，部分被土壤地球化学屏障捕获。纳米粒子的发现为地气找矿寻找隐伏矿床提供了直接信息。
Metallic nanoparticles are widely discovered in the soil and geogas over the concealed ore deposits, such as Au, Cu–Ni and porphyry Cu deposit. They are stable forms of metallogenic elements according to their similarities in characteristics of the shape, size, inner structure, and assemblage. Meanwhile, it is considered that nanoparticles in the soil come from ore bodies because they show the same features. Nanoparticles transported upwards by the ascending geogas from the depth to the surface through the overburden partly persist in the geogas and partly are captured by the soil geochemical barrier. The discovery of nanoparticles provides direct information for the geogas prospecting to find concealed ore deposits.