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- Athabasca_Valles abstract "Athabasca Valles is an outflow channel on Mars, cut into its surface by catastrophic flooding. It is one of the youngest known of these structures, probably forming only in the geologically recent past of Mars. The flood produced distinctive \"teardrop\" landforms similar to those found in the Channeled Scablands on Earth. It is thought that these landforms were produced though depositional processes wherein the floodwaters dropped sediment behind resistant bedrock outcroppings and craters. The source of water for the flood is thought to be Cerberus Fossae, at 10 N and 157 E. Groundwater may have been trapped under a cryosphere which was broken when the fossae was created. The very high spatial resolution images from the HiRISE camera on board the Mars Reconnaissance Orbiter have revealed that all the flood features are draped by lava flows (Jaeger et al., 2007).Research, published in January 2010, described the discovery of a vast single lava flow, the size of the state of Oregon, that \"was put in place turbulently over the span of several weeks at most.\" This flow, near Athabasca Valles, is the youngest lava flow on Mars. It is thought to be of Late Amazonian Age. Other researchers disagree with this idea. Under Martian conditions lava should not stay fluid very long.The floor of Athabasca Valles is peppered with thousands of small cones and rings formed as steam exploded through the lava flow. Because the flood-carved surface is now covered by lava, it is no longer easy to determine the age of the water floods that passed through Athabasca Valles. It is plausible that the flood was triggered by rising magma and hence the water flood and lava flows are essentially contemporaneous, but this has not been confirmed.Around 80% of the craters in Athabasca Valles are secondary craters from the impact that created Zunil crater.Images from HiRISE in the Athabasca Valles region show features formed by the expansion and contraction of ice. Because these features occur in a channel that was active only 2 million years ago, the features hint at a warmer climate existing later than generally thought. To make the features, ice melted to form liquid water, then refroze. The detailed images from HiRISE show features similar to common landforms on Earth where permafrost is melting (polygonally patterned surfaces, branched channels, blocky debris and mound/cone structures). However, other features in the flow, such as spiral coils similar to terrestrial lava coils, are indicative of a volcanic origin rather than a glacial origin.".
- Athabasca_Valles wikiPageID "14281147".
- Athabasca_Valles wikiPageLength "6244".
- Athabasca_Valles wikiPageOutDegree "15".
- Athabasca_Valles wikiPageRevisionID "680890727".
- Athabasca_Valles wikiPageWikiLink Athabasca_River.
- Athabasca_Valles wikiPageWikiLink Category:Valleys_and_canyons_on_Mars.
- Athabasca_Valles wikiPageWikiLink Cerberus_Fossae.
- Athabasca_Valles wikiPageWikiLink Channeled_Scablands.
- Athabasca_Valles wikiPageWikiLink Earth.
- Athabasca_Valles wikiPageWikiLink Elysium_(volcanic_province).
- Athabasca_Valles wikiPageWikiLink Flood.
- Athabasca_Valles wikiPageWikiLink Geological_history_of_Mars.
- Athabasca_Valles wikiPageWikiLink HiRISE.
- Athabasca_Valles wikiPageWikiLink Lava_coil.
- Athabasca_Valles wikiPageWikiLink Mars.
- Athabasca_Valles wikiPageWikiLink Oregon.
- Athabasca_Valles wikiPageWikiLink Outflow_channels.
- Athabasca_Valles wikiPageWikiLink Secondary_crater.
- Athabasca_Valles wikiPageWikiLink Zunil_(crater).
- Athabasca_Valles wikiPageWikiLinkText "Athabasca Valles".
- Athabasca_Valles eOrW "W".
- Athabasca_Valles latitude "8.6".
- Athabasca_Valles length "285.0".
- Athabasca_Valles longitude "205".
- Athabasca_Valles nOrS "N".
- Athabasca_Valles name "Athabasca Valles".
- Athabasca_Valles naming "River in Canada.".
- Athabasca_Valles wikiPageUsesTemplate Template:Mars.
- Athabasca_Valles wikiPageUsesTemplate Template:MarsGeo-Valley.
- Athabasca_Valles wikiPageUsesTemplate Template:Portal_bar.
- Athabasca_Valles wikiPageUsesTemplate Template:Reflist.
- Athabasca_Valles subject Category:Valleys_and_canyons_on_Mars.
- Athabasca_Valles hypernym Channel.
- Athabasca_Valles type TelevisionStation.
- Athabasca_Valles type Feature.
- Athabasca_Valles comment "Athabasca Valles is an outflow channel on Mars, cut into its surface by catastrophic flooding. It is one of the youngest known of these structures, probably forming only in the geologically recent past of Mars. The flood produced distinctive \"teardrop\" landforms similar to those found in the Channeled Scablands on Earth. It is thought that these landforms were produced though depositional processes wherein the floodwaters dropped sediment behind resistant bedrock outcroppings and craters.".
- Athabasca_Valles label "Athabasca Valles".
- Athabasca_Valles sameAs Q1108951.
- Athabasca_Valles sameAs Athabasca_Valles.
- Athabasca_Valles sameAs Athabasca_Valles.
- Athabasca_Valles sameAs Athabasca_Valles.
- Athabasca_Valles sameAs m.03c_4vs.
- Athabasca_Valles sameAs Q1108951.
- Athabasca_Valles sameAs 阿薩巴斯卡谷.
- Athabasca_Valles wasDerivedFrom Athabasca_Valles?oldid=680890727.
- Athabasca_Valles isPrimaryTopicOf Athabasca_Valles.