Definition of aggradation in English:

aggradation

noun ˌaɡrəˈdeɪʃ(ə)nˌæɡrəˈdeɪʃən

mass nounGeology

The deposition of material by a river, stream, or current.
〔地质〕加积，淤高，沉积
Example sentencesExamples
- Some of the reasoning behind the comments of Legros seems to be based on the view that ignimbrites are deposited by progressive aggradation from steady currents emplaced rather slowly over hours or days.
- This does not mean that deforestation is not associated with accelerated soil loss, landsliding, river-channel aggradation, with desertification, or with increased severity of floods.
- Coastal progradation / aggradation may be linked to a change in source area and high sediment supply rather than relative sea-level change.
- The transition from fluvial aggradation to subsequent fluvial downcutting records base level lowering most likely associated with structurally driven surface uplift.
- More recently, Maddy et al. suggested that aggradation and incision in river valleys can be explained by climate-induced changes in sediment and water supply.

Origin

Late 19th century: from ag- (expressing increase) + (de)gradation.

Definition of aggradation in US English:

aggradation

nounˌaɡrəˈdāSHənˌæɡrəˈdeɪʃən

Geology

The deposition of material by a river, stream, or current.
〔地质〕加积，淤高，沉积
Example sentencesExamples
- The transition from fluvial aggradation to subsequent fluvial downcutting records base level lowering most likely associated with structurally driven surface uplift.
- More recently, Maddy et al. suggested that aggradation and incision in river valleys can be explained by climate-induced changes in sediment and water supply.
- Coastal progradation / aggradation may be linked to a change in source area and high sediment supply rather than relative sea-level change.
- This does not mean that deforestation is not associated with accelerated soil loss, landsliding, river-channel aggradation, with desertification, or with increased severity of floods.
- Some of the reasoning behind the comments of Legros seems to be based on the view that ignimbrites are deposited by progressive aggradation from steady currents emplaced rather slowly over hours or days.

Origin

Late 19th century: from ag- (expressing increase) + (de)gradation.

词汇	aggradation
释义	Definition of aggradation in English: aggradation noun ˌaɡrəˈdeɪʃ(ə)nˌæɡrəˈdeɪʃən mass nounGeology The deposition of material by a river, stream, or current. 〔地质〕加积，淤高，沉积 Example sentencesExamples Some of the reasoning behind the comments of Legros seems to be based on the view that ignimbrites are deposited by progressive aggradation from steady currents emplaced rather slowly over hours or days. This does not mean that deforestation is not associated with accelerated soil loss, landsliding, river-channel aggradation, with desertification, or with increased severity of floods. Coastal progradation / aggradation may be linked to a change in source area and high sediment supply rather than relative sea-level change. The transition from fluvial aggradation to subsequent fluvial downcutting records base level lowering most likely associated with structurally driven surface uplift. More recently, Maddy et al. suggested that aggradation and incision in river valleys can be explained by climate-induced changes in sediment and water supply. Origin Late 19th century: from ag- (expressing increase) + (de)gradation. Definition of aggradation in US English: aggradation nounˌaɡrəˈdāSHənˌæɡrəˈdeɪʃən Geology The deposition of material by a river, stream, or current. 〔地质〕加积，淤高，沉积 Example sentencesExamples The transition from fluvial aggradation to subsequent fluvial downcutting records base level lowering most likely associated with structurally driven surface uplift. More recently, Maddy et al. suggested that aggradation and incision in river valleys can be explained by climate-induced changes in sediment and water supply. Coastal progradation / aggradation may be linked to a change in source area and high sediment supply rather than relative sea-level change. This does not mean that deforestation is not associated with accelerated soil loss, landsliding, river-channel aggradation, with desertification, or with increased severity of floods. Some of the reasoning behind the comments of Legros seems to be based on the view that ignimbrites are deposited by progressive aggradation from steady currents emplaced rather slowly over hours or days. Origin Late 19th century: from ag- (expressing increase) + (de)gradation.
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