在寻找空间上和成因上经常与酸性火成岩有关的稀有元素矿床时,某些能借以区分含矿岩体的标志具有很大的价值。花岗岩类中副矿物的平均含量及副矿物中稀有元素的平均含量可以作为这样的标志。 花岗岩类中副矿物的含量 如果把花岗岩浆的成矿能力看作是分散在岩浆中的稀有和金属元素在岩浆晚期和岩浆期后阶段富集的能力,则它的最首要标 In the search for rare and elemental deposits that are spatially and causally associated with acidic igneous rocks, some of the hallmarks that can distinguish ore-bearing rock masses are of great value. The average content of accessory minerals in granites and the average content of rare elements in accessory minerals can serve as such markers. The content of secondary minerals in granites If granite magmatism is considered as the ability to concentrate the rare and metallic elements dispersed in magma during the late magmatic stages and post-magmatic stages, its paramount importance