chemical weathering

Chemical weathering of carbonate cement in sandstone and the related cultural relic diseases in Yungang Grottoes

云冈石窟砂岩中碳酸盐胶结物化学风化及相关文物病害研究

Chemical Weathering in the Red River Basin: Records of Major and Trace Elemental Geochemistry

红河盆地的化学风化作用：主要和微量元素地球化学记录

the chemical weathering intensity of rocks in the red river basin was controlled by structural and climatic processes.

且化学风化作用受该区域的气候和构造作用控制。

REE composition in loess in the middle Yellow river and extensive physical weathering in drainage basins have great influence on REE characteristics in the Yellow river sediments, whereas complex source rock and chemical weathering controlled the REE composition and distribution in the Yangtze river sediments.

黄河中游黄土的REE组成及流域物理风化决定了黄河沉积物的REE特征；而长江流域复杂的源岩与较强的化学风化控制了长江沉积物的REE组成特点。

Study on characteristic value of chemical weathering in weathering granite regolith different vertical division zone in the Three Gorge Dam Region of Yangtze River

三峡坝区花岗岩风化分带的化学风化特征指标研究

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。

the chemical weathering index ( cia), k/ na ratio, eluvial coefficient ( ki) and a-cn-k diagram, can availably indicate the evolution of pedogenic environment.

对化学风化指数（CIA）、K/Na比值、残积系数（Ki）等化学综合参数的研究结果显示，各项地球化学参数可有效指示成壤环境与成壤强度；

The main factors influenced fractures development are the tectogenesis, the physical weathering and the chemical dissolution.

影响裂缝发育的主要因素是构造、物理风化和化学淋溶作用。

The variation of chemical weathering indices with the depth also supported the result of grain size analysis, i.e. parent rock being inhomogenous.

化学风化指标在剖面的变化也支持了粒度分析结果，即风化壳母岩的不均一性。

Chemical weathering was beginning to attack the unweathered bedrock.

化学侵蚀作用开始攻击还未侵蚀的岩床.

Chemical weathering: dissolution, oxidation, carbonation , hydrolysis, and hydrations.

化学风化: 溶解 、 氧化 、 碳酸岩化 、 水合作用和水化作用.

On the basis of X-ray diffraction, sedimental size and major elements analyses, we deduce the chemical weathering degree of sediments in Taihu Lake and illuminate the hydrodynamic condition and the source of sediments.

对太湖现代沉积物进行了X射线衍射分析、粒度分析和常量元素分析，由此推断它们的矿物成分、化学风化程度差异，并分析了不同的水动力条件和物源。

The mottles develop under strong chemical weathering conditions.

说明网纹是在较强的化学风化条件下形成的。

Clays are produced by mechanical and chemical weathering and primarily colloidal in size.

粘土是由机械和化学的风化作用形成,主要是胶粒大小.

Chemical weathering processes and atmospheric co_2 consumption in the Yellow River Drainage Basin

黄河流域化学风化作用与大气CO2的消耗