An alluvial deposit that forms by accretion on the inner side of an expanding loop of a river.
Example sentencesExamples
- Variability in current directions and direct observation of arcuate epsilon cross stratification in mixed mud-sand sequences implies high-sinuosity channels with point bars.
- Sediment deposited on the inside of the bend forms a point bar.
- The high I.V. of boxelder in a point bar dominated by cottonwood is an example of such a combination.
- These mud-shrimp are restricted to the lower intertidal of estuarine mouth areas, on muddy point bars that are in continuous contact with normal marine seawater.
- Collinson also suggested that the units of low-angle cross-stratified conglomerate record either bar shifting within a braided system or the migration of a point bar in a gravel-bed meandering stream.