Geography 2330A/B Chapter Notes -Sediment Transport, Aggradation, Tectonic Uplift
24 Nov 2014
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Document Summary
90% landscapes that are not glaciated consist of hill slopes and the remainder consist of river channels and their floodplains. Regolith debris on a hill slope and raw material which soils are developed. Terrestrial landscapes dominated by erosion and the material removed is ultimately transported to the oceans where it takes part in the continual slow recycling of earth"s crust and tectonic plates. Water breaks up rocks and is part of the weathering process and it drives sediment transport processed that carry soil materials down to the ocean, progressively eroding land. Weathering and erosion provide the raw material which rivers transport through their valleys to the oceans. Changes in hill slope erosion rate may not be matched by similar changes in river transporting capacity, resulting in either floodplain aggradation (increase in land elevation due to the deposition of sediment) and widening or valley incision. Slopes shape vary because of vegetation and soils on the hill slopes.
