摘要
在地球化学演化过程中,曾发生过锰铁分离和锰铬分离。锰的成矿地球化学行为明显地不同于铁和铬。锰在内生成矿作用中趋向于分散;在外生成矿作用中趋向于富集,并受沉积分异规律所支配。采用丰度法计算,中国大陆地壳内1km厚范围内的锰矿资源总量为3.3～8.9亿吨金属量,相当平均品位为30％的锰矿石量11～30亿吨。其锰矿资源潜力可按给出的丰度模式求出。
The separation of manganese from iron and that of manganese from chromium have taken place during the evolution of the earth.Geochemical behaviors of manganese are quite different from those of iron and chromium.Manganese is a typical petrogenic element which tends to disperse in the endogenie ore-forming process but gets enriched in the exogenic process, governed by the regularity of sedimentary differentiation.Abundance estimation shows that the total manganese amount in the thickness of 1 km of China's continental crust is 3.3×10~8～8.9×10~3 ton, equivalent to 11×10~8～30×10~8 ton of manganese ore with mean grade of 30% Mn.The recoverable potential manganese resources of China can be calculated with the help of the abundance patterns given in this paper.
出处
《矿床地质》
CAS
CSCD
北大核心
1992年第4期301-306,共6页
Mineral Deposits
