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	NationMaster - Encyclopedia: Mississippi Alluvial Plain
		The Mississippi Alluvial Plain (73) extends along the Mississippi River from the confluence of the Ohio and Mississippi rivers southward to the Gulf of Mexico; temperatures and annual average precipitation increase toward the south.
		The Mississippi Alluvial Plain is in the northern part of the Mississippi Embayment, a geologic structural trough in which the underlying crust of the Earth forms a deep valley.
		The natural regional flow of ground water in the Mississippi Embayment in the Tertiary aquifers is from the outcrop areas in the upper Gulf Coastal Plain, laterally along the aquifers toward the embayment axis, and then upward through overlying confining units and aquifers to the surface of the Mississippi Alluvial Plain (Grubb, 1986; Ackerman, 1989).
	www.nationmaster.com /encyclopedia/Mississippi-Alluvial-Plain (316 words)

	Flood plain
		Flood plain is the term in physical geography for a plain formed of sediment dropped by a river.
		Flood plains may be the result of planation, with aggradation, that is, they may be due to a graded river working in meanders from side to side, widening its valley by this process and covering the widened valley with sediment.
		The flood plain during its formation is marked by meandering, or anastomosing streams, ox-bow lakes and bayous[?], marshes or stagnant pools, and is occasionally completely covered with water.
	www.ebroadcast.com.au /lookup/encyclopedia/fl/Flood_plain.html (281 words)

	Ch08
		The plain abuts the Yan Shan in the north, the Taihang Shan in the west and the Qin Ling and Huaiyang Shan in the south.
		The plain is principally composed of sandy and loamy sediments, with loam predominant.
		Throughout the alluvial plain, variations in the lithological characteristics, structure and thickness of the unconsolidated deposits are extremely complicated with sands of different grain sizes interbedded with clayey soils.
	www.unu.edu /unupress/unupbooks/80157e/80157E09.htm (5996 words)

	Education - Alluvial Plains, Geological seismic and soil Survey, Assessorato Difesa del Suolo e della Costa. Protezione ... (Site not responding. Last check: 2007-10-31)
		The Danube alluvial plain is of importance to the spread of mixed farming in the north-west part of Europe.
		The sediment forming the alluvial plains is unconsolidated material, and groundwater is filling the pores between the grains.
		Alluvial plains are typically composed of stratified gravels, sands, silts and clays, deposited by streams in the areas in, and adjacent to the stream, and peat, fl organic rich muds, or layers of salts deposited in areas of stagnant waters.
	www.regione.emilia-romagna.it /geologia/e_pianall2.htm (1717 words)

	Alluvial plain - Wikipedia, the free encyclopedia
		An alluvial plain is a relatively flat and gently sloping landform found at the base of a range of hills.
		As the hills erode due to weathering and water flow the sediment from the hills is transported to the lower plain.
		The leftover higher locations, typically natural levees at the margins of the flood channel, will themselves be eroded by lateral stream erosion and from local rainfall and possibly wind transport if the climate is arid and does not support soil-holding grasses.
	en.wikipedia.org /wiki/Alluvial_plain (209 words)

	Highbeam Encyclopedia - Search Results for Alluvial plain
		An alluvial plain, it is Uruguay's principal cattle-raising and wheat-growing region.
		It is in the center of a small, heavily populated alluvial plain near the Yarlung Zangbo (Brahmaputra) River.
		Alluvial deposits (alluvium) are clastic, detrital materials transported by a stream or river and deposited as the river flood-plain.
	www.encyclopedia.com /SearchResults.aspx?Q=Alluvial+plain (1473 words)

	Lough Foyle Alluvial Plain Landscape
		The Lough Foyle Alluvial Plain stretches along the shores of Loyle Foyle from Enagh, on the eastern fringes of Londonderry, to the mouth of the River Roe.
		The sands and gravels of the alluvial plain originated as glacial outwash from the melting glaciers inland.
		The pattern of the landscape on the alluvial plains varies from a geometric, large-scale arable mosaic to a small-scale patchwork of rough pastures.
	www.ehsni.gov.uk /landscape/country_landscape/33/33-land.htm (628 words)

	Chapter 21-Ecological Subregions of the United States
		The predominant landform consists of a flat, weakly dissected alluvial plain formed by deposition of continental sediments onto submerged, shallow continental shelf, which was later exposed by sea level subsidence.
		The predominant landform is a flat, weakly dissected alluvial plain was formed by deposition of continental sediments onto a submerged, shallow continental shelf, which was later exposed by sea level subsidence.
		The predominant landform consists of weakly to moderately dissected irregular plains of alluvial origin formed by deposition of continental sediments onto a submerged, shallow continental shelf, which was later exposed by sea level subsidence.
	www.fs.fed.us /land/pubs/ecoregions/ch21.html (4009 words)

	The Nature Conservancy in Louisiana - Mississippi River Alluvial Plain
		The largest ecoregion in Louisiana is the Mississippi River Alluvial Plain, which covers some 12,350 square miles in the state.
		Alluvial plains are lowland areas adjacent to major rivers, which receive periodic flooding and significant deposits of silt and clay material suspended in the flood waters.
		The forested wetlands of the Mississippi River alluvial plain is an imperiled ecosystem.
	www.nature.org /wherewework/northamerica/states/louisiana/preserves/art6867.html (999 words)

	Sirsa - district of Haryana - Haryana Online - North India
		The Haryana Plain is a vast surface of flat to rolling terrain and extends south to the northern boundary of the bed of the Ghaggar.
		The plain is traversed by dune complexes and shifting sands.
		Alluvial bed of Ghaggar is a clayey surface of flat, plain bordered in the north and west by the Haryana Plain and in the south along the sound dune tract.
	haryana-online.com /Districts/sirsa.htm (546 words)

	Louisiana - MSN Encarta
		Louisiana lies wholly within the gulf portion of the Coastal Plain, which is one of the principal natural regions, or physiographic provinces, of the United States.
		The Mississippi Alluvial Plain in Louisiana extends from the Louisiana-Arkansas border in the north to the Gulf of Mexico in the south and parallels the main channel of the Mississippi River.
		Largely a low-lying and swampy area, the Mississippi Alluvial Plain has an average width of about 80 km (about 50 mi) and slopes gently southward from 35 m (115 ft) on the Louisiana-Arkansas border to sea level at South Pass, one of the delta’s chief channels at the mouth of the Mississippi River.
	encarta.msn.com /encyclopedia_761560280/Louisiana.html (1357 words)

	NSSH Part 629 - Glossary, A-C \| NRCS Soils (Site not responding. Last check: 2007-10-31)
		alluvial cone - A semi-conical type of alluvial fan with very steep slopes; it is higher, narrower, and steeper (e.g., > 40% slopes) than a fan, and composed of coarser, and thicker layers of material deposited by a combination of alluvial episodes and to a much lesser degree, landslides (e.g., debris flow).
		alluvial plain remnant - An erosional remnant of an alluvial plain which retains the surface form and alluvial deposits of its origin but was not emplaced by, and commonly does not grade to a present-day stream or drainage network.
		chenier plain - A mud-rich strand plain, occupied by cheniers and intervening mud-flats with marsh and swamp vegetation.
	soils.usda.gov /technical/handbook/contents/part629glossary1.html (8119 words)

	USGS - NAWQA - Water Quality in the Mississippi Embayment - Introduction
		One of the distinct features of the alluvial plain is the formation of natural levees along the banks of the rivers, and the associated backswamp deposits that are dominated by dense alluvial clays and historically have supported extensive wetland areas.
		The Gulf Coastal Plains are separated from the eastern edge of the Mississippi Alluvial Plain by the Loess Hills, which extend most of the length of the Study Unit.
		The Mississippi Alluvial Plain is in the northern part of the Mississippi Embayment, a geologic structural trough in which the underlying crust of the Earth forms a deep valley.
	pubs.usgs.gov /circ/circ1208/introduction.htm (1944 words)

	Coastal Plain - Search Results - ninemsn Encarta
		Specifically, a coastal plain is the gently sloping, low-lying area between the...
		The coastal plain is narrow, level, and extremely fertile.
		Morocco has the broadest plains and the highest mountains in North Africa.
	au.encarta.msn.com /Coastal_Plain.html (105 words)

	Welcome to NAARM (Site not responding. Last check: 2007-10-31)
		It is characterized by semi-stabilized sand dunes on alluvial terraces, lateritic remnants in the West, and numerous creeks and swamps in the deltaic tract.
		Sub-humid Sutlej-Ganga Alluvial Plains : It comprises Punjab, plains of Uttar Pradesh, Delhi, and Bihar.
		It is characterized by extensive alluvial plain dotted with sand dunes, saline depressions and granite hills.
	icar.naarm.ernet.in /Faculty/T.Balaguru/Balaguru1.asp (2898 words)

	Arkansas Geography from NETSTATE
		Though most of the region is level Lowlands, the Mississippi Alluvial Plain is broken by a narrow strip of hills running north to south through the central Plain.
		The Mississippi Alluvial Plain is sometimes referred to as the Delta region and is covered with rich soil carried by the Mississippi River and its tributaries.
		West Gulf Coastal Plain: In Arkansas, the West Gulf Coastal Plain covers the southeastern and south central portions of the state along the border of Louisiana.
	www.netstate.com /states/geography/ar_geography.htm (898 words)

	Alluvial plain Totally Explained
		An alluvial plain is a relatively flat and gently sloping landform found at the base of a range of hills or mountains, formed by the deposition of alluvial soil over a long period of time by one or more rivers coming from the mountains.
		As the hills erode due to weathering and water flow the sediment from the hills is transported to the lower plain.
		The leftover higher locations, typically natural levees at the margins of the flood channel, will themselves be eroded by lateral stream erosion and from local rainfall and possibly wind transport if the climate is arid and doesn't support soil-holding grasses.
	alluvial_plain.totallyexplained.com (394 words)

	Designing A Future For Arkansas Wildlife
		The Mississippi Alluvial Plain (73) extends along the Mississippi River from the confluence of the Ohio and Mississippi rivers southward to the Gulf of Mexico; temperatures and annual average precipitation increase toward the south.
		The Mississippi Alluvial Plain (73) has been widely cleared and drained for cultivation; this widespread loss or degradation of forest and wetland habitat has impacted wildlife and reduced bird populations.
		Small to medium size earthquakes still occur frequently; their shocks are magnified by the alluvial plain' s unconsolidated deposits, creating regional land management issues.
	www.wildlifearkansas.com /plain.html (503 words)

	GIS/EM4 - A Linked GIS/Modeling Approach to Assessing Flood-plain Function
		Values for alluvial matrix, sandy deposits, and sandy soils determined such that: 1) the geometric mean hydraulic conductivity weighted by soil volume was equal to the mean value observed by Deborde et al.
		Thus, the model is capable of representing the anisotropic, heterogeneous conditions in alluvial aquifers, including the presence of subsurface preferential flow pathways formed by buried stream channels ("paleochannels").
		Ecology of the alluvial aquifers of the Flathead River, Montana.
	www.colorado.edu /research/cires/banff/pubpapers/42 (2593 words)

	Risk of arsenic contamination in groundwater affecting the Ganga Alluvial Plain, India - Correspondence Environmental ...
		The pandemic arsenic pollution in the Bengal Basin is caused by superimposed effects of the preferential entrapment of As in organic-rich deltaic sediments during the early- to mid-Holocene, when the sea level rose; later, severe reducing conditions developed, causing the release of As into groundwater.
		None of these features characterize the Ganga Alluvial Plain, where sediments in the mega fans from the Himalayan rivers that cover major parts of the alluvial plain are sandy, and associated groundwater is not reduced to the level required to cause significant mobilization of As.
		In the Ganga Alluvial Plain, the active floodplains of most of the rivers are narrow and entrenched within the broad river valleys, which are located south of the mega fan surfaces that correspond to the Himalayan rivers meeting the Ganga River.
	www.findarticles.com /p/articles/mi_m0CYP/is_1_112/ai_113455699 (856 words)

	US Army Corps of Engineers Waterways Experiment Station, Geotechical Laboratory, Geotechnical, Earthquake, and and ... (Site not responding. Last check: 2007-10-31)
		The Mississippi alluvial plain represents the valley of the Mississippi River and its tributaries from the vicinity of Cairo, Illinois to the Louisiana Gulf Coast.
		The alluvial plain consists of Pleistocene (Ice Age) and recent deposits of clay, silt, sand, and gravel that were laid down by the Mississippi River as it meandered across this broad floodplain.
		The geologic province at Vicksburg and to the east of the bluff line is the Gulf Coastal Plain, a region of low hills overlying sedimentary rocks and soils of Tertiary age (5 to 38 million years before present).
	geoscience.wes.army.mil /FS_VicksburgGeology.html (871 words)

	Arkansas Delta and Mississippi Delta geography & Mississippi River Flood of 1927 history
		In natural resource terms, the Mississippi Delta is the alluvial valley stretching from southern Illinois to central Louisiana at the junction of the Red, Atchafalaya, and Mississippi Rivers.
		Therefore, at the time of settlement, the Delta was an area of alluvial soils occupying a valley between higher terraces to the east and the west.
		The southeastern lowlands are comprised of the Gulf Coastal Plain, the Mississippi Alluvial Plain (the Delta), and Crowley's Ridge.
	www.deltaculturalcenter.com /geography (1523 words)

	Southern California Areal Mapping Project home
		This is a space-shuttle image of an alluvial-fan complex and associated playa in the Death Valley region (source: NASA photograph STS058-083-028, October 1993, obtained from the NASA Earth from Space archive of space-shuttle images).
		This is a space-shuttle image of a single giant alluvial fan in the Gansu Province, China (source: NASA photograph STS048-610-034, September 1991, obtained from the NASA Earth from Space archive of space-shuttle images).
		During any given alluvial cycle, the latter once were part of a continuous sediment package that extended from canyon-head to canyon-mouth; however, upstream components now are isolated, relict bodies of sediment scattered along the canyon bottom.
	scamp.wr.usgs.gov /scamp/html/scg_surf_alluv.html (1968 words)

	Alluvial fan - Indopedia, the Indological knowledgebase
		An alluvial fan is a fan-shaped deposit where a fast flowing stream flattens, slows, and spreads, typically at the exit of a canyon onto a flatter plain.
		Aluvial fans are most likely to be found in desert areas subject to periodic flash floods from nearby thunderstorms in local hills.
		Plants often are concentrated at the base of alluvial fans and many have long tap roots (30-50 feet) to reach water.
	www.indopedia.org /Alluvial_fan.html (310 words)

	Plain @ iCookClub.com
		In geography, a plain is a large area of land with relatively low relief.
		Plains may be more suitable for farming than plateaus or mountains.
		An alluvial plain is a landform formed by the deposition of alluvial soil over a long period of time by a river coming from the mountains.
	reference.icookclub.com /plain.html (114 words)

	The Mississippi River's Alluvial Plain (Site not responding. Last check: 2007-10-31)
		Events of the Pleistocene left their mark on major U.S. rivers.
		A conspicuous band of alternating Pleistocene (pale yellow) and Holocene (gray) deposits characterizes the broad, flat alluvial plain of the Mississippi River Embayment, its tributaries to the west, and coastal Texas.
		The irregularly striped pattern owes its origin to extensive and accelerated deposition by streams during interglacial phases of the Pleistocene, followed by erosion of these materials by Holocene river systems, over the last 1-2 million years.
	tapestry.usgs.gov /features/45mississippi.html (87 words)

	Puerto Rico 3
		From Ponce eastward, the coast is a low-lying alluvial plain with a coastline either of beach plain or mangrove, and wave erosion where alluvial cliffs form the coast.
		There are almost continuous beach plains, interrupted by short spans of mangrove, eroding alluvial plain, and man-made rock riprap.
		The plain is alluvial fan of gravel, sand and silts from the central mountains.
	geology.uprm.edu /Morelock/GEOLOCN_/wcpr3.htm (508 words)

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