| 词汇 | illuviation |
| 释义 | illuviation noun[ U or C ] geology specializeduk /ɪˌluː.viˈeɪ.ʃən/ us /ɪˌluː.viˈeɪ.ʃən/ the process by which substances from one layer of soil are washed down to a lower layer, for example by rain water : This suggests that the illuviation started to occur quite early in the soil development history. Clay illuviations have already been identified near the top of unit III. Clay illuviation in these naturally impoverished soils can lead to a virtually complete removal of charged colloids. This is as a result of illuviation or weathering of silicates in this location. The overall trend might suggest that iron illuviation took place. Soil alluvial boulder clay clay clayey cover crop earthiness frozen humus lime loam ooze peat bog sandy sedimentation silt soil solarization solarize unploughed worm cast You can also find related words, phrases, and synonyms in the topics: The Earth & outer space - general words Related wordsilluviate illuvial |
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