Shallow-water and bars on the Ruamahanga River delta Lake Wairarapa
Pickrill, R.A.; Irwin, J. (1978). Shallow-water and bars on the Ruamahanga River delta Lake Wairarapa. N.Z. J. Mar. Freshwat. Res. 12(2): 109-119
In: New Zealand Journal of Marine and Freshwater Research. Royal Society of New Zealand: Wellington. ISSN 0028-8330; e-ISSN 1175-8805, meer
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| Trefwoorden |
Deltaic deposits
Sedimentary structures > Bed forms > Sand bars
Transport > Sediment transport
Zoet water |
| Abstract |
In the shallow waters of Lake Wairarapa, a multiple series of sublimnic sand bars has developed around the outer edge of the Ruamahanga River delta. Shore-normal movements in bar positions occur in response to changing lake level and wave conditions. Unlike many bar systems, most of these movements are lakeward of the breaker zone. Sediments on the bar crests are well-sorted find sands; the trough are a mixture of fine sand and mud settling out of the turbid lake waters during calm conditions. |
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