Efficiency of the log-hyperbolic distribution, a case study: pattern of sediment sorting in a small tidal inlet, Het Zwin, the Netherlands
Hartmann, D.; Bowman, D. (1993). Efficiency of the log-hyperbolic distribution, a case study: pattern of sediment sorting in a small tidal inlet, Het Zwin, the Netherlands. J. Coast. Res. 9(4): 1044-1053
In: Journal of Coastal Research. Coastal Education and Research Foundation: Fort Lauderdale. ISSN 0749-0208; e-ISSN 1551-5036, meer
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| Trefwoorden |
Distribution > Sediment distribution
Grain size analysis
Sedimentation
Zwin [Marine Regions]
Marien/Kust; Brak water |
| Author keywords |
Grain size analysis, log-hyperbolic distribution, hyperbolic shape triangle, erosion-deposition model, population concept, tidal-inlet |
| Abstract |
Sediment sorting dispersal pattern in The Zwin tidal-inlet, The Netherlands, was studied using grain size data. The descriptive power of the log-hyperbolic distribution model, the hyperbolic shape triangle, current meters recordings and bedform analysis were applied. The process-oriented discriminating approach suggests four distinct log-hyperbolic grain size curves, related to four morphodynamic sub-environments along The Zwin Inlet. The log-hyperbolic shape indicates, in response to the governing dynamics, a gradual change from erosive, at the inlet front, to a depositional sedimentary facies inland. Applying the population concept, the Zwin supersample, the combined total sampled grain size population, falls into the right wing of the hyperbolic shape triangle, indicating a winnowed-erosional facies (rho = 0.44) which is the main sedimentary fingerprint of The Zwin Inlet. It indicates winnowing-out of the suspended fraction, supposedly complementary to a similar sedimentary heritage from the longshore drifted sediments. |
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