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。
Impermeable clay limits downward percolation of water and fulvic acids, reducing chemical weathering and podzolization.
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。
Most trace elements, including manganese and arsenic, get into the water through the natural process of rock weathering.
冲上沙滩之前，油块经过“风化”，在空气和海水作用下变得泡沫化，有粘性。
Before landing on the beach, the oil had become "weathered," made foamy and gooey by extended exposure to air and water.
什么可以减少铁在为细菌提供能源而加快含铁盒非含铁矿物风化和碳化反应的作用？
What role can reduced iron play in providing energy for bacteria to speed the weathering and carbonation reactions of iron - and non-iron-containing minerals?
那里的土壤是经过风化作用的石灰石土壤或黄土。
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。
The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized.
在冷生风化率的研究中，必须考虑影响冷生风化过程的各个因子，衡量它们的作用程度。
It is necessary to consider each factors and their influence in the study of cryogenic weathering processes.
外在起因包括混凝土被服从环境和服务情况的作用，譬如风化、化工行动和穿戴。
The external causes include the effects of environmental and service conditions to which concrete is subjected, such as weathering, chemical actions and wear.
铝土矿全部是风化作用形成的，无一例外。
All of the bauxites are formed by weathering without any exception.
用硅作为指示性元素，研究了酸沉降作用下土壤矿物的风化特征；
The weathering characteristics of soil minerals were investigated using Si as an index element.
研究了硅酸盐细菌对矿物的风化作用。
This paper focuses on mineral weathering by silicate bacteria.
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。
The results show that the soils have, in varying degree inherited some properties of purple sedimentary rocks for their very weak chemical weathering.
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。
The consistency of the geologic ages suggests that the selenium source is related to eruption or weathering of the Emeishan basalt in Southwest China.
研究区土壤风化作用强度规律性变化是造成区内土壤有效硅含量变化的主要原因。
The variation of available silicon was controlled by the variation of weathering intensity in the area studied.
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。
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.
土壤频率磁化率因主要受风化成土作用强度影响，所以能够较好地指示土壤发育程度和相对成土年龄。
Frequency dependent susceptibility, however, dominantly influenced by the intensity of rock weathering and soil formation, can indicate soil development degrees and relative soil ages.
风化前锋是一个重要的地球化学作用场所，在这一狭窄的界面上，伴随碳酸盐矿物的快速淋失，残余酸不溶物开始了明显分解。
The weathering front is a main place of geochemical reaction, and at this limited-thick interface, with quick dissolution of carbonates, acid-insoluble residues begin to obviously decompose.
研究认为它们是磷灰石风化作用形成的表生矿物。
Studies of these minerals show they are hypergene minerals formed from weathering of apatite.
绵羊罩衣可减少被毛中植物杂质及灰尘含量，防止毛丛顶端的日光风化，提高羊毛生长速度及羊毛品质，增加净毛产量。 在较冷地区还有御寒保暖作用。
Sheep overclothes can keep warm and prevent top of staple from insolation weathering and decrease the impurity and dust, increase wool yield and quality especially in chilliness area.
黄土的风化主要为植物群落根系的物理作用及其所引起的生物化学作用。
Weathering of loess soil is physical and biochemical processes mainly controlled by the root systems of plant community.
某些植物起了风化作用的辅助作用。
但由于构造活动及地表风化作用的影响，矿层在地下水的作用下，其保存情况及矿石类型形成了明显的分带性。
But due to the influence of the structural activities and weathering in the surface, under the action of underground water, the ore types and the preservation of ore seam showed obvious zoning.
原生裂缝是岩浆冷凝结晶过程中形成的裂缝；次生裂缝是火山岩及其原生裂缝系统受后期构造运动、溶蚀、风化等作用改造而形成的裂缝。
Primary fracture were formed during the lava crystal and the secondary fracture generated during the volcanic reconstruction by tectonic movement, and wind action, solution.
竹叶石为砾屑灰岩经风化与岩溶作用而形成的块石。
Bamboo stone for calcirudite by weathering and karstification and the formation of the stone.
风化淋滤作用形成的储层沥青主要沿断层和不整合面分布。
The reservoir bitumen formed by weathering are usually distributed along a fault and a uncomformity.
风化淋滤作用形成的储层沥青主要沿断层和不整合面分布。
The reservoir bitumen formed by weathering are usually distributed along a fault and a uncomformity.
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