1、 He reasoned that the original ocean was not salty and that subsequently salt derived from the weathering of rocks was brought to the sea by streams.
他认为海洋里起初不含盐，是之后的溪流将岩石风化形成的盐带入了大海。
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2、 Impermeable clay limits downward percolation of water and fulvic acids, reducing chemical weathering and podzolization.
不可渗透的粘土限制了水和黄腐酸的向下渗透，从而减少了化学风化和土壤灰化作用。
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