(Table 4) Chemical compositions of the <0.002 mm and 0.002 to 0.02 mm grain s...

Samples were water rinsed during sieving and settling. Values have been adjusted to a carbonate-free composition.样品在筛分与沉降过程中经水洗处理；所有组分数值均已校正为无碳酸盐的组成。