Lecture 29 (Friday, April 5, 2002): Rivers and Deltas
Brief outline of this lecture:
Main points of this lecture:
Where rivers flow into standing water (lakes or the ocean), the resulting cessation of flow allows depositon of sediment in deltas.
The shape of a delta depends on the extent to which waves or tides rearrange sediment deposited by the river bringing sediment to that delta.
Deltas form coarsening-upwards sequences of sediment.
Figures used in this lecture:
Meander cut-off and formation of an ox-bow lake
Progradation of a Delta
Reading assignment: Chapter 6.
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