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Topic: Dissected plateau


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In the News (Thu 16 Aug 18)

  
 Geology of the Appalachians - Biocrawler   (Site not responding. Last check: 2007-10-20)
As the horizontal strata of the plateau present equal ease or difficulty of erosion in any direction, the streams and the submature valleys of the plateau therefore ramify in every direction, thus presenting a pattern that has been called insequent, because it follows no apparent control.
However in general, the dissection of the New England upland is as irregular as is the distribution of the surmounting monadnocks.
Farther west and southwest, the plateau is drained to the Ohio river and its branches.
www.biocrawler.com /encyclopedia/Geology_of_the_Appalachians   (5316 words)

  
 Plateau - Wikipedia, the free encyclopedia
A plateau is a large highland area of fairly level land separated from surrounding land by steep slopes (as problably in the Tibet), or to accumulation of sediments (as in intramountain endorheic basins), or to a combination of both (as in the Andean Altiplano).
Some undersea plateaus, like the Seychelles plateau, are fragments of continental crust that lie separate from continents; they are analogous to continental shelves.
A dissected plateau may also be formed or created, usually on a comparatively small scale, by the levelling of terrain by planing and layne elstein and deposition beneath an ice sheet or perhaps, an ice cap.
en.wikipedia.org /wiki/Plateau   (537 words)

  
 Physiography of Tennessee -- Tennessee Archaeology Net
The selection of a northern boundary for the Cumberland Plateau is arbitrary, the division being based on the greater degree of dissection of the Plateau to the north (Fenneman 1938:333).
The most uniform area of the Plateau includes all formations of Pennsylvanian age that are bounded by the escarpment of Walden's Ridge and Cumberland Mountains on the east, by the Tennessee River on the south, by the Cumberland River on the north, and by the continuous escarpment along the western edge of the caprock.
The Cumberland Plateau is the southern portion of the Appalachian Plateau physiographic province.
www.mtsu.edu /~kesmith/TNARCHNET/physio.html   (4700 words)

  
 Appalachian Plateaus   (Site not responding. Last check: 2007-10-20)
The average elevation of the plateau surface in Virginia is between 2000 and 2500 feet above sea level.
The upturned edge of the Appalachian Plateaus, where the horizontal beds of the plateau give way to the folded beds of the Valley and Ridge, is observable in certain places.
A major distinction between the two plateaus is that the northern Allegheny surface was glaciated during the Pleistocene; the southern Cumberland surface was not.
www.runet.edu /~swoodwar/CLASSES/GEOG202/physprov/applat.html   (249 words)

  
 Allegheny Plateau - HighBeam Encyclopedia   (Site not responding. Last check: 2007-10-20)
ALLEGHENY PLATEAU [Allegheny Plateau] dissected plateau, western part of the Appalachian Mts., extending c.500 mi (800 km) SW from N Pa. to SW Va., rising to c.4,860 ft (1,480 m) at Spruce Knob, the highest peak in West Virginia.
The E Allegheny Plateau, known as the Allegheny Mountains or the Alleghenies, has a steep eastward-facing escarpment often called the Allegheny Front (c.1,500-1,600 ft/460-490 m high) and is more rugged than the western portion.
From our magnificent mountain and wilderness regions to the Great Lakes, from the forests and highlands of the Allegheny plateau to wonderful urban waterfront parks, New York is endowed with an incredible diversity of open space.
www.encyclopedia.com /html/a/alleghp1lat.asp   (327 words)

  
 Jordan Soils and Land Management   (Site not responding. Last check: 2007-10-20)
Torriorthents occur predominantly on the steep colluvial and talus slopes of the deeply dissected Umm Rijam chert.
The region is characterized by very deep dissection of the plateau by the Zarqa and its tributaries, and by the wadis following to the Jordan Valley, producing long, very steep slopes on the valley sides, rounded crests, ridges and interfluves, and the undulating remnants of the former plateau; the highest elevations show karstic features.
Cereal crops are grown on the undulating plateau remnants and in the larger valleys.
alic.arid.arizona.edu /jordansoils/_html/land_regions.html   (4636 words)

  
 Dissected plateau - Wikipedia, the free encyclopedia
A dissected plateau is an area that has been uplifted, then severely eroded so that the relief is sharp.
Such an area may be referred to as mountainous, but dissected plateaus are distinguishable from true mountains by lack of folding, metamorphism, extensive faulting, or magmatic activity that accompanies orogeny.
The Allegheny Plateau, the Cumberland Plateau, the Ozark Plateau, and the Catskill Mountains (despite the name) are examples of dissected plateaus.
en.wikipedia.org /wiki/Dissected_plateau   (135 words)

  
 Landforms
Upland Gambia is dominated by dissected plateau with sand hills.
Natural vegetation in the plateau is along a precipitation gradient, ranging from trees and shrub savannah in the northeast to multi-story tropical forest in the southwest.
The country is part of the Tertiary Continental Terminal Plateau covering 53% of the land area with alluvial deposits of Quaternary period along the river (Geology and Mineral Resources of the Gambia 1988).
www.columbia.edu /~msj42/Landforms.htm   (760 words)

  
 Weight Plateaus -- Recommendations and Resources   (Site not responding. Last check: 2007-10-20)
In geology and earth science, a plateau (alternatively spelt in a false French spelling plâteau, the real spelling in French being ''plateau'') is an area of highland, usually consisting of relatively flat open country if the uplift was recent in geologic history.
Plateaus (or plâteaux), like mesas and buttes, are formed when land has been uplifted by tectonic activity and then eroded by wind or water.
The saucer-shaped plateau is tilted towards the south-east, and is drained by the Mun and Chi rivers, tributaries to the Mekong, which also is the boundary of the area.
www.becomingapediatrician.com /health/169/weight-plateaus.html   (1276 words)

  
 NHWGGA - Geology of the Sydney Basin
Within the Basin, the principal physiographic units relating to the study area are the Cumberland Plain in the centre, the Hornsby Plateau to the north and north east, and the Blue Mountains Plateau to the west.
Along the north western boundary of the study area, the Hornsby Plateau, with an elevation less than 300 metres, is arbitrarily separated from the Blue Mountains Plateau by the gorge of the Colo River.
The Dissected Plateau in the north of the study area is different from the others in that it does not have a higher rainfall than the River Plain.
www.hawkesbury.net.au /nhwgg/overview/geology.html   (1805 words)

  
 Level III Ecoregions
The Sierra Nevada is a deeply dissected block fault that rises sharply from the arid basin and range ecoregions on the east and slopes gently toward the Central California Valley to the west.
This ecoregion is largely a dissected plateau that is hillier in the south and east where it is easily distinguished from bordering ecological regions by a sharp fault line.
The Interior Plateau is a diverse ecoregion extending from southern Indiana and Ohio to northern Alabama.
www.hort.purdue.edu /newcrop/cropmap/ecoreg/descript.html   (8213 words)

  
 Chapter 17-Ecological Subregions of the United States
The predominant landforms are irregular, shallow to moderately dissected plains of alluvial origin formed by deposition of continental sediments onto a submerged, shallow continental shelf, which was later exposed by sea level subsidence.
Numerous species of otherwise common animals are nearly or completely absent from the limestone region: a few examples include the golden mouse; longtail, seal, northern dusky, four-toed, and northern red salamanders; wood and southern leopard frogs; upland and mountain chorus frogs; five-lined and ground skinks; fl kingsnake, timber rattlesnake, and brown and northern redbelly snakes.
The Section is a maturely dissected, upland plateau where broad, steep-sided bedrock ridges and "mounds" up to 500 ft (150 m) high are separated by wide, flat-bottomed drainages in the southern portion of the Section, and by narrow, V-shaped valleys farther north.
www.fs.fed.us /land/pubs/ecoregions/ch17.html   (10131 words)

  
 Chapter 14-Ecological Subregions of the United States
It is a glacially scoured and dissected peneplain characterized by gently rolling terrain and pitted outwash plains, with scattered, low, rounded mountains (monadnocks).
It is a glacially scoured and dissected peneplain dominated by a broad, central, marine plain.
It is a maturely dissected plateau characterized by sharper ridge tops and narrower valleys than the glaciated portions of the plateau to the north and west.
www.fs.fed.us /land/pubs/ecoregions/ch14.html   (11090 words)

  
 Rochester Plateau
Rochester Plateau is a subsection of the Driftless and Dissected Plateau (or Paleozoic Plateau) Section of the Eastern Broadleaf Forest Province (
The eastern boundary is a transition between the level to rolling plateau and steeply dissected landscapes of the Blufflands subsection (Minnesota DNR 1998).
The western boundary is based on the interface between the plateau's oak/Big Woods/prairie vegetation complex and the oak savanna/prairie complex to the west.
www.mnmodel.dot.state.mn.us /chapters/plat.htm   (2528 words)

  
 Edwards Plateau, Physiographic Area 53 - Executive Summary
The central and western portions of the plateau are characterized by broad, relatively level uplands moderately dissected by gently sloping stream divides.
The deeply dissected portion adjacent to the escarpment, the Balcones Canyonlands, is popularly known as the Texas Hill Country.
Periodic, naturally-occurring fire was a major ecological force in the western plateau that maintained live oak savannahs and produced a mosaic of habitats across broad landscapes.
www.blm.gov /wildlife/pl_53sum.htm   (363 words)

  
 CIA - The World Factbook -- Field Listing - Terrain
diverse, with coastal plain in southwest, dissected plateau in center, mountains in west, plains in north
mostly plateau interspersed with mountain peaks, icefields; coast deeply indented by bays and fiords
primarily semiarid and desert plateau; narrow coastal plain; mountains in west
www.umsl.edu /services/govdocs/wofact2004/fields/2125.html   (2770 words)

  
 CPD: South America, Site SA7, Chiribiquete-Araracuara-Cahuinarí Region, Columbia   (Site not responding. Last check: 2007-10-20)
The northern (Chiribiquete-Araracuara) portion of this region is dominated by north-south aligned outcrops of Palaeozoic sandstone formations in an extensive interrupted sandstone plateau at c.
Mostly along the plateau margins dissected portions occur with hilly to undulating topography.
At Araracuara, the top of the sandstone plateau is partially covered by low forest, generally with a high density of treelets (to 10 cm dbh); at least two floristic communities are found: a forest marked by Dimorphandra cuprea, D.
www.nmnh.si.edu /botany/projects/cpd/sa/sa7.htm   (2964 words)

  
 Geoscience Australia: AusGeo News 80 - The Mellish Rise – a big piece of the Coral Sea geological jigsaw puzzle
The Mellish Rise's northwest margin is separated from the Louisiade Plateau by the Louisiade Trough, which may have been the prolongation of a Townsville Trough rift system before evolving into an arm of a triple junction developed between the rise and Marion Plateau (figure 1).
The seismic and multibeam data show that the rise is much like a dissected plateau, largely formed of irregularly shaped highs separated by valleys.
An excellent understanding of the geological composition and evolution of the Mellish Rise and Kenn Plateau region is expected to be gained from the interpretation of seismic profiles and seafloor morphology, petrological examination, and nannofossil and foraminiferal evaluation of the sedimentary rocks now underway.
www.ga.gov.au /ausgeonews/ausgeonews200512/mellish.jsp   (1096 words)

  
 Water Resources Development Action Plan by using Remote Sensing data: A case study in Dhaulpur block, Dhaulpur ...
Physiographically the area is characterised by a dissected plateau and alluvial plain region.
The most striking feature is the development of dissected ravenous zone along the three main rivers viz.
Plateau on sandstones rising to heights of nearly 150m from plains
www.gisdevelopment.net /application/nrm/water/overview/wato010pf.htm   (2015 words)

  
 Groundwater Resources of Barren County, Kentucky   (Site not responding. Last check: 2007-10-20)
The topography varies from a plateau area moderately to deeply dissected by normal stream erosion in the southeast, to a sinkhole (karst) plain in the central and northeast, to a highly dissected plateau in the northwest.
Isolated knobs, erosion remnants of the upland plateau, punctuate the landscape in the northern part of the county.
The 7.5-minute topographic quadrangle maps that cover the county are shown, by name and by index code (Kentucky Natural Resources and Environmental Protection Cabinet) on the index map.
www.uky.edu /KGS/water/library/gwatlas/Barren/Topography.htm   (341 words)

  
 [No title]   (Site not responding. Last check: 2007-10-20)
Distances to bearing trees and diameters were used to estimate tree density and to evaluate the relative structure and composition of presettlement vegetation.
Significantly lower tree densities occurred in the Ozark Plateau and Dissected Till Plain.
In the Dissected Till Plain, white oak was dominant and fl oak, hickory, elm (Ulmus spp.), and sycamore (Platanus occidentalis) were important components.
www.umesc.usgs.gov /documents/reports/1997/97r026.txt   (256 words)

  
 Blufflands
The complex western boundary follows major river valleys, marking a transition from a highly dissected landscape along the Mississippi River and its tributaries to the level to rolling topography of the Rochester Plateau subsection.
To the north, the short boundary is based on the interface between the Superior or Des Moines Lobe outwash sediments and the Mississippi River Valley terraces as interpreted by Hobbs and Goebel, 1982 (Minnesota DNR, 1998).
From north to south these tributaries include the Cannon River (outlet is north of Red Wing in Goodhue County), the Zumbro River (outlet is south of Wabasha in Wabasha County), Whitewater River (outlet in northern Wabasha County), the Root River (outlet in northern Houston County), and the Crooked and Winnebago Creeks in southern Houston County.
www.mnmodel.dot.state.mn.us /chapters/bluf.htm   (2225 words)

  
 Physiographic Provinces of West Virginia Map
Most of West Virginia is a dissected, westward-tilting plateau called the Appalachian Plateau Province.
In the northeast part of this province, a subprovince called the Allegheny Mountain Section combines elements of the folded mountains to the east and the dissected plateau.
The eastern boundary of the Appalachian Plateau, the Allegheny Front, is a prominent geological feature which runs northeast-southwest across the State.
www.wvgs.wvnet.edu /www/maps/pprovinces.htm   (584 words)

  
 plateau — FactMonster.com
Allegheny Plateau - Allegheny Plateau, dissected plateau, western part of the Appalachian Mts., extending c.500 mi (800...
Columbia Plateau - Columbia Plateau, physiographic region of North America, c.100,000 sq mi (259,000 sq km), NW United...
Colorado Plateau - Colorado Plateau, physiographic region of SW North America, c.150,000 sq mi (388,500 sq km), in...
www.factmonster.com /ce6/sci/A0839319.html   (269 words)

  
 GEO_PLATE_F-1.HTML   (Site not responding. Last check: 2007-10-20)
The Edwards Plateau consists of flat-lying Cretaceous carbonate and shale units at elevations of 600 to 900 m, which blanket much of south-central Texas.
The streams of the plateau include ephemeral varieties such as the Dry Devils River (left in Figure F-1.2) and perennial channels such as the lower Devils River (right in Figure F-1.2), Flow in the latter is maintained by ground-water discharge from the limestone.
The flat-lying rocks of the Edwards Plateau are dissected in overall dendritic patterns.
daac.gsfc.nasa.gov /geomorphology/GEO_4/GEO_PLATE_F-1.HTML   (759 words)

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