Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Outflow_channels> ?p ?o }
- Outflow_channels abstract "Outflow channels are extremely long, wide swathes of scoured ground on Mars, commonly containing the streamlined remnants of pre-existing topography and other linear erosive features indicating sculpting by fluids moving downslope. Channels extend many hundreds of kilometers in length and are typically greater than one kilometer in width; the largest valley (Kasei Vallis) is around 3,500 km (2,200 mi) long, greater than 400 km (250 mi) wide and exceeds 2.5 km (1.6 mi) in depth cut into the surrounding plains. These features tend to appear fully sized at fractures in the Martian surface, either from chaos terrains or from canyon systems or other tectonically controlled, deep graben, though there are exceptions. Besides their exceptional size, the channels are also characterized by low sinuosities and high width:depth ratios compared both to other Martian valley features and to terrestrial river channels. Crater counts indicate that most of the channels were cut since the early Hesperian, though the age of the features is variable between different regions of Mars. Some outflow channels in the Amazonis and Elysium Planitiae regions have yielded ages of only tens of million years, extremely young by the standards of Martian topographic features.On the basis of their geomorphology, locations and sources, the channels are today generally thought to have been carved by outburst floods (huge, rare, episodic floods of liquid water), although some authors still make the case for formation by the action of glaciers, lava, or debris flows. Calculations indicate that the volumes of water required to cut such channels at least equal and most likely exceed by several orders of magnitude the present discharges of the largest terrestrial rivers, and are probably comparable to the largest floods known to have ever occurred on Earth (e.g., those that cut the Channeled Scablands in North America or those released during the re-flooding of the Mediterranean basin at the end of the Messinian Salinity Crisis). Such exceptional flow rates and the implied associated volumes of water released could not be sourced by precipitation but rather demand the release of water from some long-term store, probably a subsurface aquifer sealed by ice and subsequently breached by meteorite impact or igneous activity.The outflow channels contrast with the Martian channel features known as \"valley networks\", which much more closely resemble the dendritic planform more typical of terrestrial river drainage basins.Outflow channels tend to be named after the names for Mars in various ancient world languages, or more rarely for major terrestrial rivers. The term outflow channels was introduced in planetology in 1975.".
- Outflow_channels thumbnail Kasei_Valles_topo.jpg?width=300.
- Outflow_channels wikiPageExternalLink outflow_channels.html.
- Outflow_channels wikiPageID "22514145".
- Outflow_channels wikiPageLength "12262".
- Outflow_channels wikiPageOutDegree "85".
- Outflow_channels wikiPageRevisionID "705178307".
- Outflow_channels wikiPageWikiLink Aeolian_processes.
- Outflow_channels wikiPageWikiLink Amazonis_Planitia.
- Outflow_channels wikiPageWikiLink Aram_Chaos.
- Outflow_channels wikiPageWikiLink Ares_Vallis.
- Outflow_channels wikiPageWikiLink Argyre.
- Outflow_channels wikiPageWikiLink Athabasca_Valles.
- Outflow_channels wikiPageWikiLink Aureum_Chaos.
- Outflow_channels wikiPageWikiLink Cambridge_University_Press.
- Outflow_channels wikiPageWikiLink Canyon.
- Outflow_channels wikiPageWikiLink Category:Megafloods.
- Outflow_channels wikiPageWikiLink Category:Surface_features_of_Mars.
- Outflow_channels wikiPageWikiLink Category:Valleys_and_canyons_on_Mars.
- Outflow_channels wikiPageWikiLink Cerberus_Fossae.
- Outflow_channels wikiPageWikiLink Channeled_Scablands.
- Outflow_channels wikiPageWikiLink Chaos_terrain.
- Outflow_channels wikiPageWikiLink Chasma_Australe.
- Outflow_channels wikiPageWikiLink Chasma_Boreale.
- Outflow_channels wikiPageWikiLink Chryse_Planitia.
- Outflow_channels wikiPageWikiLink Crater_counting.
- Outflow_channels wikiPageWikiLink Dao_Vallis.
- Outflow_channels wikiPageWikiLink Debris_flow.
- Outflow_channels wikiPageWikiLink Drainage_basin.
- Outflow_channels wikiPageWikiLink Echus_Chasma.
- Outflow_channels wikiPageWikiLink Elysium_Mons.
- Outflow_channels wikiPageWikiLink Elysium_Planitia.
- Outflow_channels wikiPageWikiLink Ganges_Chasma.
- Outflow_channels wikiPageWikiLink Geology_of_Mars.
- Outflow_channels wikiPageWikiLink Glacier.
- Outflow_channels wikiPageWikiLink Graben.
- Outflow_channels wikiPageWikiLink Granicus_Valles.
- Outflow_channels wikiPageWikiLink Harmakhis_Vallis.
- Outflow_channels wikiPageWikiLink Hebrus_Valles.
- Outflow_channels wikiPageWikiLink Hellas_Planitia.
- Outflow_channels wikiPageWikiLink Hephaestus_Fossae.
- Outflow_channels wikiPageWikiLink Hesperian.
- Outflow_channels wikiPageWikiLink Hrad_Vallis.
- Outflow_channels wikiPageWikiLink Hydraotes_Chaos.
- Outflow_channels wikiPageWikiLink Iani_Chaos.
- Outflow_channels wikiPageWikiLink Impact_event.
- Outflow_channels wikiPageWikiLink Juventae_Chasma.
- Outflow_channels wikiPageWikiLink Jökulhlaup.
- Outflow_channels wikiPageWikiLink Kasei_Valles.
- Outflow_channels wikiPageWikiLink Katabatic_wind.
- Outflow_channels wikiPageWikiLink Ladon_Valles.
- Outflow_channels wikiPageWikiLink Lahar.
- Outflow_channels wikiPageWikiLink Lake.
- Outflow_channels wikiPageWikiLink Lava.
- Outflow_channels wikiPageWikiLink List_of_areas_of_chaos_terrain_on_Mars.
- Outflow_channels wikiPageWikiLink Maadim_Vallis.
- Outflow_channels wikiPageWikiLink Maja_Valles.
- Outflow_channels wikiPageWikiLink Mangala_Valles.
- Outflow_channels wikiPageWikiLink Mars.
- Outflow_channels wikiPageWikiLink Marte_Vallis.
- Outflow_channels wikiPageWikiLink Martian_chaos_terrain.
- Outflow_channels wikiPageWikiLink Mawrth_Vallis.
- Outflow_channels wikiPageWikiLink Messinian_salinity_crisis.
- Outflow_channels wikiPageWikiLink Niger_Vallis.
- Outflow_channels wikiPageWikiLink Olympica_Fossae.
- Outflow_channels wikiPageWikiLink Olympus_Mons.
- Outflow_channels wikiPageWikiLink Orson_Welles_(crater).
- Outflow_channels wikiPageWikiLink Outburst_flood.
- Outflow_channels wikiPageWikiLink Ravi_Vallis.
- Outflow_channels wikiPageWikiLink Reull_Vallis.
- Outflow_channels wikiPageWikiLink Shalbatana_Vallis.
- Outflow_channels wikiPageWikiLink Simud_Valles.
- Outflow_channels wikiPageWikiLink Sinuosity.
- Outflow_channels wikiPageWikiLink Tharsis.
- Outflow_channels wikiPageWikiLink Tinjar_Valles.
- Outflow_channels wikiPageWikiLink Tiu_Valles.
- Outflow_channels wikiPageWikiLink University_of_Arizona_Press.
- Outflow_channels wikiPageWikiLink Utopia_Planitia.
- Outflow_channels wikiPageWikiLink Uzboi_Vallis.
- Outflow_channels wikiPageWikiLink Valley_networks_(Mars).
- Outflow_channels wikiPageWikiLink Volcanism.
- Outflow_channels wikiPageWikiLink Water_on_Mars.
- Outflow_channels wikiPageWikiLink File:Kasei_Valles_topo.jpg.
- Outflow_channels wikiPageWikiLinkText "Outflow channels".
- Outflow_channels wikiPageWikiLinkText "outflow channel".
- Outflow_channels wikiPageWikiLinkText "outflow channels".
- Outflow_channels wikiPageUsesTemplate Template:Cite_book.
- Outflow_channels wikiPageUsesTemplate Template:Convert.
- Outflow_channels wikiPageUsesTemplate Template:Div_col.
- Outflow_channels wikiPageUsesTemplate Template:Div_col_end.
- Outflow_channels wikiPageUsesTemplate Template:Mars.
- Outflow_channels wikiPageUsesTemplate Template:Portal_bar.
- Outflow_channels wikiPageUsesTemplate Template:Reflist.
- Outflow_channels wikiPageUsesTemplate Template:Sisterlinks.
- Outflow_channels subject Category:Megafloods.
- Outflow_channels subject Category:Surface_features_of_Mars.
- Outflow_channels subject Category:Valleys_and_canyons_on_Mars.
- Outflow_channels type Feature.
- Outflow_channels type Redirect.
- Outflow_channels type Concept.