- Preferred Labelskos:prefLabel
pointbar (BGU-T)
- URI
- https://pid.geoscience.gov.au/def/voc/ga/GeomorphologySettings/pointbar ↗Go to the persistent identifier link
- Within Vocab
- Marine geomorphology - Part 2 Geomorphology
| Preferred Labelskos:prefLabel | pointbar (BGU-T) |
|---|---|
| Definitionskos:definition | Are situated along the convex banks of bends in SUBAERIAL and SUBMARINE CHANNELS. They typically have an arcuate shape that reflects the radius of curvature of the bend. The cross-sectional slope of the bar is inclined towards the centre of the channel, reflecting the asymmetrical channel geometry at the bend apex. Textural attributes of the bar reflect patterns of secondary helical flow over the bar surface, which vary between SETTINGS (e.g. MARINE, FLUVIAL, COASTAL; Modified from: Goudie, 2006) and POINTBARS may develop into SCROLL BARS. In preserved deposits POINTBARS may appear to be superficially similar to COUNTERPOINT BARS. |
| Broaderbroader |
barform (BGU)
|
| See AlsoseeAlso | Marine geomorphology - Part 2 Geomorphology |
| Is Defined ByisDefinedBy | Marine geomorphology - Part 2 Geomorphology |
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