论文部分内容阅读
本文提供了关於镓在某地鋁土矿中的含量分布資料,探討了镓在鋁土矿形成过程中的地球化学行为。研究的結果表明,镓在铝土矿中的含量随着鋁的含量而規律地相应增减,二者紧密相伴,Ga/Al重量比值的变化在1.1—1.4×10~(-4)之間,說明鋁土矿形成时介貭的酸硷度变化不大。至於镓同三价铁在鋁土矿中則未見明显的依附关系。文中还討論了镓同鋁在风化作用中性貭上的同異和镓在鋁土矿中的存在形式問題,並对某地鋁土矿与其它地区的鋁土矿作了成分上的对比,推論了不同区域和不同类型鋁土矿中镓含量差異的原因。除了物貭来源、介貭性貭的变化之外,某地铝土矿中之所以含镓較低,看来与組成矿石的铝矿物成分即其中鋁含量的高低有很大关系。
This article provides information on the distribution of gallium in bauxite and explores the geochemical behavior of gallium in bauxite formation. The results show that the content of gallium in bauxite increases and decreases regularly with the content of aluminum, the two are closely associated with each other. The weight ratio of Ga / Al varies from 1.1 to 1.4 × 10 ~ (-4) , Indicating the formation of bauxite pH changes little change. As gallium with trivalent iron in bauxite is no obvious dependence. In the paper, we also discuss the existence of the same type of Ga and Ga in bauxite on the neutral weathering of gallium and aluminum, and compare the composition of bauxite in other places with the bauxite in other areas. The reason for the difference in gallium content in different regions and different types of bauxite is inferred. In addition to the sources of materials and the changes in intercalatity, the reason why gallium is low in a bauxite mine appears to be strongly related to the aluminum content in the ore, ie its aluminum content.