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区域成矿作用的物质基础——具有全球意义的钨元素地球化学场钨在地球中的分布是不均匀的.根据黎彤的计算,地球平均含钨1.7 pp m,其中地核-4.9ppm,下地幔-0.1ppm,上地幔-0.3ppm,陆地地壳-1.2ppm,海洋地壳-0.9ppm.具有强烈亲氧特性的钨元素.随着地壳的演化发展,上部地壳的氧含量不断增加,钨也逐渐向地球上部移动,并在特定的地质条件下富集成矿、世界钨矿的成矿作用随着时间的推移而逐渐加强,前寒武纪至早古生代以与基件火山作用有关
According to Li Tong’s calculation, the earth contains 1.7 pp m of tungsten on average, of which the Earth’s core is -4.9ppm, Lower mantle -0.1 ppm, Upper mantle -0.3 ppm, Terrestrial crust -1.2 ppm, Marine crust -0.9 ppm. Tungsten with strong oxophilic character. With the evolution of the crust, the oxygen content of the upper crust has been continuously increasing. Tungsten Gradually moving to the upper part of the earth and enriching mineralization under certain geological conditions. The mineralization of the world’s tungsten ore gradually strengthened with the passage of time. From Precambrian to Early Paleozoic, it was related to the basement volcanism