Although it
is widely recognized that intracontinental rift basins include basin axis
systems and transverse systems, the means by which these deposits of are
partitioned in space and time is poorly understood. Connell et al. describe fluvial morphology and sedimentation in an experimental basin
designed to explore processes in asymmetrical rift basins. In the experimental setting that allowed
for constant sediment supply, subsidence, and base level, results illustrate
how the locations of axial and tributary systems were controlled by autogenic
influences of changes in relative discharge, evolving topographic gradients and
boundaries, and resultant sediment redistribution. The dynamic, internal interactions of axial and transverse
systems likely play an important role on geomorphic attributes of comparable real-world
basins.
Fluvial Morphology and Sediment-Flux Steering of Axial–Transverse Boundaries In An Experimental Basin by Sean D. Connell, Wonsuck Kim, Chris
Paola, and Gary A. Smith
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