(Table 2) Concentrations of labile and lithogenic forms of metals in dry matt...

Labile forms of metals were leached by 6 hour shaking of ground samples in 25% acetic acid. Not-leached forms were cosidered as lithogenic.将研磨后的样品置于25%乙酸溶液中振荡6小时，以此浸提金属的不稳定结合态；未被浸提的金属形态则被认定为岩石成因态。