Anastomosing rivers. Forms, processes and sediments
Tha anastomosing rivers represent a major group of rivers that are currently of interest in fluvial geomorphology and sedimentology. The term is reserved for a type of multichannel river on alluvial plains that most often seems to form under
relatively low-energetic conditions. The objects of this study are (1) to develop a consistent definition, (2) to develop a universally applicable conceptual model for the genesis of anastomosing river systems and (3) to document the variability in facies
and fluvial architecture of modern and subrecent anastomosing river systems to improve the interpretation of the fossil record. The approach followed is that of comparatice reserch of modern and subrecent anastomosing river systems in various climatic
Development of anastomosing channels in south central Indiana
Examines the development of several anastomosing channels tributary to the Ohio River in south-central Indiana. This paper shows that : 1) anabranch development is associated with avulsion; 2) the spatial distribution of anastomosed stream segments
Waterhole form and process in the anastomosing channel system of Cooper Creek, Australia
One of the most distinctive features of Cooper Creek's anastomosing channel system is the preponderance of waterholes, enlarged segments of channel ranging in length from 100 m to over 20 km. They play a significant hydrological and geomorphological
role in the Cooper Creek anastomosing system. They provide long-term water storage in an arid environment, and their fixed position helps to maintain the stability of the multi-channel pattern.
Waterholes and their significance in the anastomosing channel system of Cooper Creek, Australia
Cooper Creek has developed a very extensive system of anastomosing channels, a distinctive feature of which is the preponderance of waterholes, which are readily identified as deepened and widened reaches of channel with more or less permanent water
an anastomosing planform. Radiocarbon dating indicated that the earliest of the retraced channels were active before 9000 BP. The retraced river system was formed in a proglacial stream valley perpendicularly cut by remains of subglacial tunnels, now partly filled
anabranches, anastomosing patterns with traces of a lateral migration and traces of a transition from meandering to anastomosing planform were distinguished.
Fluvial processes in a forested anastomosing river: flood partitioning and changing flow patterns
This paper presents data on the flood response of channels in one of the last wooded, semi-natural anastomosing systems in Europe. The Gearagh, Ireland, is characterized by hundreds of small islands separated by interconnected channels of low slope
Anastomosing river system along the subsiding middle Yangtze River basin, southern China
that they are similar to other anastomosing river depositional systems. Secondly, the results will serve as a baseline indicator for monitoring and evaluating the fluvial environmental change that will occur due to the impoundment and flow regulation of the 3-Gorges Dam
Anastomosing rivers are characterized by multiple channels separated by islands excised from the floodplain. Their status relative to the continuum concept of channel pattern is assessed with channel pattern defined in terms of three variables: flow
strentgh, bank erodibility and relative sediment supply. Anastomosis may in certain cases represent a transitional form of channel pattern but there is no denying the longevity of some anastomosing systems.
The anastomosing pattern and the extensively distributed scroll bars in the middle Amazon River
The middle Amazon River, between the confluences of the Negro and Madeira Rivers in Brazil, shows an anastomosing morphology with relatively stable, multiple interconnected channels that locally enclose floodbasins. The AA. analyzed sedimentary
processes using field data, morphology and channel changes trough a temporal analysis using remote sensing data and obtained optically stimulated luminescence (OSL) dating to understand the genesis of this large anastomosing river and the development of its
This paper presents the results of a detailed investigation of total flow resistance variation for 5 channel types on the Sabie River, South Africa (cohesive, mixed anastomosed, uncohesive mixed anastomosed, mixed pool-rapid, alluvial braided
The present study aims at a more comprehensive understanding of channel pattern development and avulsion processes in relation to the large-scale trend of Holocene sea-level rise. It investigates the occurrence of anastomosing and meandering channel
This thesis is part of a research programma that was started at the Department of Physical Geography of Utrecht University to gain more insight in the lithological complexity of fluvial deposits of meandering and anastomosing rivers
This paper uses qualitative and quantitative data analyses to examine multi-scale spatial patterns of sedimentation in a large anastomosing river floodplain in SW Queensland. Patterns of sedimentation at the channel, floodplain process zone
Alluvial reaches in the source region of the Yangtze River exhibit predominantly braided channel planforms, while equivalent reaches in the source region of the Yellow River have more diverse planform morphologies including anastomosing/braided
, anabranching/braided, and anabranching/anastomosing reaches. The regional gradient of variation in riparian vegetation and interactions between vegetation development and hydrologic process are shown to be major factors influencing this difference in channel
. Utilisation de diagrammes qui représentent en relation avec la latitude, la fréquence des types de lits de rivière pour des cours d'eau à méandres, à anastomoses stables et changeantes.
sedimentology of anastomosed and wandering gravel-bed rivers. The scale problems of facies analysis may be overcome by employing architectural element analysis in conjunction with modern geophysical methods such as shallow reflection seismology and ground