The ores with different weathering degree have different characteristics in mineralogy and chemical composition. Therefore, they can be quantitatively distinguished according to the chemical analysis.
不同风化程度的矿石有不同的矿物学和化学组分特征,因而可以根据化学分析结果作定量判别。
2
The pelitic mineralogy of the magnetite gneiss and presence of detrital zircon demonstrate that the protoliths were not a pure chemical sediment.