查询词典 weathering

At the stage of platform, the "higher Pb-Zn source bed" would be formed in the plantform-type carbonatite forma tions, especially in the first carbonatite position after every large-scale ingression, by enrichment of weathering deposition, diagenesis, biogenesis and organogenesis.

地台阶段，风化沉积成岩、生物有机质等富集作用形成了地台构造层的碳酸盐建造中（特别是大规模海侵后的第一个碳酸盐岩层位，如D〓、C〓、P〓。）的Pb、Zn上部矿源层。

The variations of temperature have not only controlled the freeze-thaw action, but also exert great influence to salt and insolation weathering.

热量条件中，温度的变化又影响到盐分作用和辐射作用。

Chemical weathering is an important ligament connection land with ocean, basin with lake, inversion of climate with environment.

化学风化是联系陆地与海洋、流域与湖泊、反演气候及环境的重要纽带。

Except weathering of original ore bodies,soil formation of karst laterite is accompanied and mixed.

此种作用使矿石具有红土型的特征，并对原始金矿的风化产物的金品位有贫化作用。

On the basis of making it clear that laterization includes such three integrated stages as weathering, micro-granularity and soil formation of laterite, the thesis illuminates characteristics of Kunming laterite in chemical composition, physical mechanics, composition of granules, fractal dimension of granularity and the connection of granules. The experiment using soil reinforced agent to solidify the laterite shows that the mechanical traits of laterite have been improved because of its involvement, the best compact indicators and shear strength ones increased and the indicators of laterites penetrability and compression decreased. The effects of reinforcement can be weighed through its coefficient and the mechanism of reinforcement can find the explanation in the effect of soil reinforced agent on the laterite granules, the changes in the electric double layer caused by soil reinforced agent and its enwrapping of laterite granules.

在明确红土化作用包括风化作用、微团粒化作用以及红土成土作用三个完整阶段的基础上，阐明了昆明红土的化学组成特征、物理力学特征、颗粒组成特征、颗粒粒度分维特征以及颗粒连接特征；土壤强固剂加固红土试验表明，土壤强固剂的加入，改善了红土的力学特性，提高了红土的最佳击实指标和抗剪强度指标，减小了红土的渗透性指标和压缩性指标，其加固效果用加固效果系数来衡量，其加固机理可用土壤强固剂与红土颗粒之间的物理化学作用、土壤强固剂引起红土双电层的变化以及土壤强固剂对红土颗粒的包裹作用来解释。

Finally, we conclude that the factors controlling the geomorphic characteristic of low relief in our study area is rock types, sedimentation, weathering and high-altitude peneplanation.

此外，研究区内的条带分析和地层年代划分表明控制研究区低坡度、低起伏地形特征的因素为：岩石的岩性、沉积作用、侵蚀作用及高山夷平面。

The movement of precipitation in a disturbed soil/rock entity with known fracture density, characterized by a weathering layer of gneiss beneath a shallow soil layer, was measured by a large lysimeter during rainfall events.

利用自行设计的大型渗透仪，对2种不同风化岩体所构成的裂隙率已知的扰动组合岩土体，在天然降雨条件下的水量转化特征进行了试验研究。

Under such conditions, Mandan women had to grow maize capable of weathering adversity.

在这种情况下，曼丹妇女不得不种植能与灾难性气候相抗衡的玉米。

With a quantitative research on the chemical and clay compositions of marly stones, their weathering rocks and residuals, as well as SEM observations, the process of dissolution of CaCO 3 and concentration of clay minerals with complex...

通过泥灰质岩石及其不同风化岩和残坡积土的化学成分、粘土矿物成分定量研究和扫描电镜观察，揭示了 Ca CO3溶蚀和粘土矿物富集过程及粘土矿物的复杂成分，发现了风化过程中伊利石向伊利石/蒙脱石混层粘土矿物的转化，解释了岩土工程性质恶化的原因，从而提高了地质研究和地质灾害研究的水平。

With a quantitative research on the chemical and clay compositions of marly stones, their weathering rocks and residuals, as well as SEM observations, the process of dissolution of CaCO 3 and concentration of clay minerals with complex components has been disclosed, and the conversion of illite to mixed-layer illite/montmorillonite discovered, which explain the reason for deterioration of geotechnical properties of the rocks and soils, thereby enhancing the level of geological and geohazards researches.

通过泥灰质岩石及其不同风化岩和残坡积土的化学成分、粘土矿物成分定量研究和扫描电镜观察，揭示了CaCO3溶蚀和粘土矿物富集过程及粘土矿物的复杂成分，发现了风化过程中伊利石向伊利石/蒙脱石混层粘土矿物的转化，解释了岩土工程性质恶化的原因，从而提高了地质研究和地质灾害研究的水平。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。