outwash


Also found in: Dictionary, Wikipedia.
Related to outwash: outwash terrace

outwash

[′au̇t‚wäsh]
(geology)
Sand and gravel transported away from a glacier by streams of meltwater and either deposited as a floodplain along a preexisting valley bottom or broadcast over a preexisting plain in a form similar to an alluvial fan. Also known as glacial outwash; outwash drift; overwash.
Soil material washed down a hillside by rainwater and deposited on more gently sloping land.
References in periodicals archive ?
boskianus from the UAE are from the gravel outwash plains bordering the Hajar Mountains, and more specifically from the interface between the gravel plains and the active sand dunes to the west (Arnold 1984).
The area of uplands and plains of Central Belarus is situated in the zone of the more ancient Sozh (Moscow, Riss) glaciations, where denudation ridge-hilly relief and outwash plains with a network of outwash flow hollows prevail.
The passive continental margin of the Atlantic, on which large volumes of glacial outwash sediment have accumulated, may be susceptible to mass failure, particularly given latent earthquake potential related to isostatic rebound.
Transport and fate of nitrate in a glacial outwash aquifer in relation to ground water age, land use practices, and redox processes.
The latter associate with kames or so-called pitted outwash plains and consist of moderately fine deposits with more or less horizontal bedding.
On retreat, the ice left extensive terminal moraines and large areas covered with glacial outwash. These and numerous other trademark glacial features have survived the drowning of this coastline by the postglacial rise in sea level.
This has occurred most often on irrigated outwash sands with water tables near the surface.
All stands occurred on sandy, mixed, frigid, Alfic Haplorthods developed in pitted outwash (Kim et al.
In Washington state I have seen yew growing on moist riverbanks, on dry, rocky glacial outwash, and hidden beneath towering old-growth Douglas-fir.
As I was flying into Logan, Utah, recently at 8500 feet, a cell 20 miles to the west was creating storm outwash with 50-knot winds from 270.
Glacial lakes were created when ice blocks from receding glaciers became embedded in the glacial outwash and melted forming kettle holes that filled with water (Petersen et al.