Modeling of a mixed-load fluvio-deltaic system

被引:53
作者
Geleynse, N. [1 ]
Storms, J. E. A. [1 ]
Stive, M. J. F. [3 ]
Jagers, H. R. A. [2 ]
Walstra, D. J. R. [2 ,3 ]
机构
[1] Delft Univ Technol, Dept Geotechnol, NL-2628 CN Delft, Netherlands
[2] Deltares, NL-2600 MH Delft, Netherlands
[3] Delft Univ Technol, NL-2628 CN Delft, Netherlands
关键词
SEDIMENT; EVOLUTION; CHANNELS;
D O I
10.1029/2009GL042000
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Present-day observations and classical classification schemes of alluvial deltas address feeder channel dynamics and multiple sediment fractions. However, high-resolution physics-based mathematical models have not been applied to address formation of both fluvio-deltaic links (channels) and nodes (diffluences and confluences), and their stratigraphy. Here, we present a simulated delta system under riverine forcing that shows striking similarity to its counterparts recognized in field and laboratory studies. These findings include distinct shifts in river planimetrical mode and altimetry, deltaic mouth bar and distributary formation, lateral fining in migrating-meander bend axes and fining-upward patterns in passive delta-plain distributaries. Citation: Geleynse, N., J. E. A. Storms, M. J. F. Stive, H. R. A. Jagers, and D. J. R. Walstra (2010), Modeling of a mixed-load fluvio-deltaic system, Geophys. Res. Lett., 37, L05402, doi:10.1029/2009GL042000.
引用
收藏
页数:7
相关论文
共 24 条
[1]  
Crosato A., 2008, Analysis and modelling of river meandering
[2]   Grain size, sediment transport and alluvial channel pattern [J].
Dade, WB .
GEOMORPHOLOGY, 2000, 35 (1-2) :119-126
[3]  
*DELT, 2008, DELFT3D FLOW MAN 3 1
[4]   Mechanics of river mouth bar formation: Implications for the morphodynamics of delta distributary networks [J].
Edmonds, D. A. ;
Slingerland, R. L. .
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE, 2007, 112 (F2)
[5]   Significant effect of sediment cohesion on delta morphology [J].
Edmonds, Douglas A. ;
Slingerland, Rudy L. .
NATURE GEOSCIENCE, 2010, 3 (02) :105-109
[6]   Dynamics of channel bifurcations in noncohesive sediments [J].
Federici, B ;
Paola, C .
WATER RESOURCES RESEARCH, 2003, 39 (06) :ESG31-ESG315
[7]  
GARCIA MEA, 2006, SEDIMENTATION ENG PR, V110
[8]   Morphodynamic evolution of experimental cohesive deltas [J].
Hoyal, D. C. J. D. ;
Sheets, B. A. .
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE, 2009, 114
[9]   Conditions for branching in depositional rivers [J].
Jerolmack, Douglas J. ;
Mohrig, David .
GEOLOGY, 2007, 35 (05) :463-466
[10]   Scaling relationships and evolution of distributary networks on wave-influenced deltas [J].
Jerolmack, Douglas J. ;
Swenson, John B. .
GEOPHYSICAL RESEARCH LETTERS, 2007, 34 (23)