Experimental alluvial fan evolution: Channel dynamics, slope controls, and shoreline growth
نویسندگان
چکیده
منابع مشابه
Experimental Alluvial Fan Evolution: Channel Dynamics, Slope Controls, and Shoreline Growth
River deltas and alluvial fans have channelization and deposition dynamics that are not entirely understood, but which dictate the evolution of landscapes of great social, economic, and ecologic value. Our lack of a process-based understanding of fan dynamics hampers our ability to construct accurate prediction and hazard models, leaving these regions vulnerable. Here we describe the growth of ...
متن کاملControls on alluvial fan long - profi les
Water and debris fl ows exiting confi ned valleys have a tendency to deposit sediment on steep fans. On alluvial fans where water transport of gravel predominates, channel slopes tend to decrease downfan from ~0.10–0.04 to ~0.01 across wide ranges of climate and tectonism. Some have argued that this pattern refl ects grain-size fi ning downfan such that higher threshold slopes are required just...
متن کاملChannel Dynamics, Sediment Transport, and the Slope of Alluvial Fans: Experimental Study1
We present the results of an experimental study of alluvial fan sedimentation under conditions of constant inflow water discharge Qw, sediment supply Qso, and median grain size D. The study was designed to complement and test a recently formulated model of alluvial fan sedimentation and to emphasize the interactions between, and controls on, flow channelization and equilibrium fan slope. Flow c...
متن کاملpedogeomorphic evolution of an alluvial fan in central iran
despite of suitable geological and climatic conditions for forming and evolution of alluvial fans and importance of this landform as soil and water resources in arid regions, there are limited studies about this landform in iran. in the present study, evolution and pedogenic development of geomorphic surfaces of an alluvial fan in eastern isfahan were studied by using remote sensing, field and ...
متن کاملAlluvial fans: geomorphology, sedimentology, dynamics - introduction. A review of alluvial-fan research
This volume presents a series of papers on the geomorphology, sedimentology and dynamics of alluvial fans, selected from those presented at the 'Alluvial Fans' Conference held in Sorbas, SE Spain in June 2003. The conference was sponsored primarily by the British Geomorphological Research Group and the British Sedimentological Research Group, both organizations affiliated to the Geological Soci...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geophysical Research: Earth Surface
سال: 2012
ISSN: 0148-0227
DOI: 10.1029/2011jf002261