1·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。
2·But when Sprigg first showed the imprints to leading authorities, they dismissed them as artifacts made by the weathering of the rocks.
然而他第一次拿给权威专家看的时候，专家认为这只是岩石风化留下的痕迹，不值一提。
3·He added, however, that in order to make even more progress in determining how Venus resurfaces, scientists need to learn exactly how weathering surface rates affect emissivity.
然而，他补充道，还需要在确定金星地表如何重塑这个问题做出更多的努力，科学家需要确切地了解地表风化率如何影响辐射率。
4·Previous changes in carbon dioxide levels were due to natural factors, such as rock weathering, and occurred very sluggishly, over many millenia.
以前二氧化碳的含量水平变化是因为自然因素，像持续数千年缓慢进行的岩石风化。
5·Dense sands like olivine are also resistant to weathering, allowing it to endure millennia of constant waves. (Magnification 110x).
像橄榄石这样的密砂能够抵抗风化，所以能够经受常年不断的潮汐拍打。
1·Most trace elements, including manganese and arsenic, get into the water through the natural process of rock weathering.
大部分微量元素，包括锰和砷，通过自然过程中的岩石风化作用进入水体。
2·The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized.
微小纤细的骨骼通常在石化前就被食腐肉的动物拆散了，或者被风化作用破坏掉了。
3·The results show that the soils have, in varying degree inherited some properties of purple sedimentary rocks for their very weak chemical weathering.
结果显示，紫色沉积岩发育的土壤，在一定程度上继承了母岩的特点，化学风化作用微弱。
4·The consistency of the geologic ages suggests that the selenium source is related to eruption or weathering of the Emeishan basalt in Southwest China.
从地质时代的一致性上反映硒的来源与西南地区峨眉山玄武岩喷发或风化作用有关。
5·The rapid crustal uplift in the Pleistocene and physical weathering and erosion, especially the erosional process of the flood in the mountains, are the direct causes for the formation of the gorges.
更新世阶段地壳迅速的抬升、外力的物理风化作用，特别是晚更新世间歇性山区洪水的冲蚀，是形成嶂谷的直接原因。