outwash


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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 ?
Although the glacial outwash drainage system in the driftless area cut deeply into the Ordovician and Cambrian beds of western Wisconsin and extreme eastern Minnesota, removing major thicknesses of overburden from most of the frac sand mining area, relict glacial outwash deposits obscure portions of the river valleys (Runkel and Steenberg, 2012).
Outwash and delta sands and gravels are deposited in the form of ice-marginal ridges and outwash fans on the fringe of the Baltic Klint.
2]), and breeds almost exclusively in one distinct habitat type, young stands of jack pine (Pinus banksiana) on sandy outwash soils in the northern Lower Peninsula of Michigan (Mayfield 1960, Donner et al.
The locality was in the drainage of Bitter Creek, a small tributary of the Salt Fork Red River on the outwash plain of the Quartz Mountains, in relatively flat agricultural land crossed by numerous artificial canals.
Acidic soaps compose complex structures that attract grease and over outwash, and form heavy layers inside drainpipes thus narrowing their radius.
The rolling dunes derived from glacial outwash eroded from the Rockies were once long considered an irreclaimable desert colonized and dominated by yucca, cacti and endangered blowout penstemom.
The retreat of the continental ice sheet that once lay 1000 feet thick upon Manhattan resulted in the deposition of a terminal moraine and the formation of the outwash plain below it, creating the landmass that would eventually become the vast bulk of Brooklyn, Queens, and parts of Staten Island.
And just to spice things up, the ahoudori chose to nest on an unstable outwash slope.
Ara is a large estate of 400 hectares all on one large glacial outwash terrace with deep gravel, patches of clay and gullies full of fine, windblown loess, a fertile and freedraining soil.
Surface outwash, defective drainage and contamination of drinking water are the other important sources for cholera infection.
The rolling hills of steep moraines and glacial outwash plains Forests, prairies, and wetlands emerged from the land so fair.