| 1. | 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。 |
| 2. | The effects of cenozoic tectonic uplift on earth surface chemical weathering and global climate change 新生代构造抬升对地表化学风化和全球气候变化的影响 |
| 3. | Correlations between strontium isotope of river water and chemical weathering in karst areas , guizhou province 贵州河流河水的锶同位素与喀斯特地区化学风化作用 |
| 4. | 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 |
| 5. | For the mass balance equations , the average mechanical denudation rates would be estimated based on chemical weathering rates for the major basins of china 研究发现综合岩性整体上控制了中国主要流域盆地化学风化率的大小,但化学风化率一定程度上也受制于流域岩石的化学风化进程。 |
| 6. | ( 2 ) cia can not reflect the degree of chemical weathering of black shales precisely , and a - cn - k diagram can not reflect chemical weathering processes of black shales completely ( 2 ) cia值并不能灵敏地反映黑色页岩的化学风化程度, a - cn - k三角图解并不能完整地反映黑色页岩化学风化的整个过程。 |
| 7. | A combined effect of climate , relief , integrated lithology , vegetation and cultivated area seemed to explain the variability of modern chemical weathering and mechanical denudation rates 相比而言,西江和北江流域岩石的整体化学风化进程、 2大类岩性的化学风化程度均较之长江、黄河流域强烈的多。 |
| 8. | In fact , as a very important part of material geochemistry cycle , chemical weathering and mechanical denudation plays a crucial role in affecting and changing the surface continent deeply 扣除大气降水、人类活动、大气co :等非岩石风化来源的物质后得到了中国17个主要流域盆地较为准确的化学风化率数值。 |
| 9. | The results show no obvious difference in the contents of major components in the different xiashu loess profiles , but some difference in the contents of readily leaching elements of loess and the chemical weathering intensity of loess among the different xiashu loess profiles 结果表明不同下蜀土剖面在主要组分含量上差异不明显,但在易淋溶元素含量和经历的化学风化程度方面存在一定差异。 |
| 10. | The results demonstrate that the pingba red residua is a typical in situ chemical weathering crust , and the material sources of the profile are derived from underlying triassic dolomites , the chemical weathering of dolomite can be divided into two stages : " leaching - accumulating trend " and weathering trend " , the stable teconic and whole weathering of dolomite should be the main reason for the development of thick and consecutive red weathering crust overlying dolomite rock in central guizhou 结果显示该剖面是下伏基岩白云岩风化成土并累积的结果,无其他外来物源,是原位风化壳;成土过程具有两阶段模式特征,即白云石、方解石的溶蚀酸不溶物累积和酸不溶物进一步风化两个阶段;长时期的构造稳定和白云岩整体溶蚀作用是黔中地区白云岩风化壳土层厚度大、分布连续的主要制约因素。 |