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- Ventifact abstract "Ventifacts are rocks that have been abraded, pitted, etched, grooved, or polished by wind-driven sand or ice crystals. These geomorphic features are most typically found in arid environments where there is little vegetation to interfere with aeolian particle transport, where there are frequently strong winds, and where there is a steady but not overwhelming supply of sand.Ventifacts can be abraded to eye-catching natural sculptures such as the main features of White Desert protectorate near Farafra oasis. In moderately tall, isolated rock outcrops, mushroom shaped pillars of rock may form as the outcrop is eroded by saltating sand grains. This occurs because, even in strong winds, sand grains can't be continuously held in the air. Instead, the particles bounce along the ground, rarely reaching higher than a few feet above the earth. Over time, the bouncing sand grains can erode the lower portions of a ventifact, while leaving a larger less eroded cap. The results can be fantastic stone mushrooms.Individual stones, such as those forming desert pavement, are often found with grooved, etched, or polished surfaces where these same wind driven processes have slowly worn away the rock.When ancient ventifacts are preserved without being moved or disturbed, they may serve as a paleo-wind indicators. The wind direction at the time the ventifact formed will be parallel to grooves or striations cut in the rock. An example of a Martian ventifact was named Jake Matijevic. By analyzing its shape, it was possible to reconstruct the main wind direction which sculpted the rock.".
- Ventifact thumbnail Weisse_Wüste.jpg?width=300.
- Ventifact wikiPageExternalLink bar.htm.
- Ventifact wikiPageID "247768".
- Ventifact wikiPageLength "3874".
- Ventifact wikiPageOutDegree "26".
- Ventifact wikiPageRevisionID "604771043".
- Ventifact wikiPageWikiLink Aeolian_processes.
- Ventifact wikiPageWikiLink Altiplano.
- Ventifact wikiPageWikiLink Atacama_Desert.
- Ventifact wikiPageWikiLink Blowout_(geomorphology).
- Ventifact wikiPageWikiLink Bolivia.
- Ventifact wikiPageWikiLink Category:Aeolian_landforms.
- Ventifact wikiPageWikiLink Category:Petrology.
- Ventifact wikiPageWikiLink Category:Rocks.
- Ventifact wikiPageWikiLink Death_Valley.
- Ventifact wikiPageWikiLink Desert_pavement.
- Ventifact wikiPageWikiLink Dolly_Sods_Wilderness.
- Ventifact wikiPageWikiLink Dreikanter.
- Ventifact wikiPageWikiLink Dune.
- Ventifact wikiPageWikiLink Erosion.
- Ventifact wikiPageWikiLink Farafra,_Egypt.
- Ventifact wikiPageWikiLink Jake_Matijevic_(rock).
- Ventifact wikiPageWikiLink Mars.
- Ventifact wikiPageWikiLink Meadow,_Texas.
- Ventifact wikiPageWikiLink Rock_(geology).
- Ventifact wikiPageWikiLink Saltation_(geology).
- Ventifact wikiPageWikiLink Sandstone.
- Ventifact wikiPageWikiLink Striation_(geology).
- Ventifact wikiPageWikiLink West_Virginia.
- Ventifact wikiPageWikiLink Yardang.
- Ventifact wikiPageWikiLink File:Weisse_Wüste.jpg.
- Ventifact wikiPageWikiLinkText "Ventifact".
- Ventifact wikiPageWikiLinkText "abrasion".
- Ventifact wikiPageWikiLinkText "ventifact".
- Ventifact wikiPageWikiLinkText "wind abrasion".
- Ventifact wikiPageWikiLinkText "wind-carved boulders".
- Ventifact wikiPageUsesTemplate Template:Commonscat-inline.
- Ventifact wikiPageUsesTemplate Template:Reflist.
- Ventifact subject Category:Aeolian_landforms.
- Ventifact subject Category:Petrology.
- Ventifact subject Category:Rocks.
- Ventifact hypernym Rocks.
- Ventifact type Place.
- Ventifact type Landform.
- Ventifact type Subfield.
- Ventifact comment "Ventifacts are rocks that have been abraded, pitted, etched, grooved, or polished by wind-driven sand or ice crystals.".
- Ventifact label "Ventifact".
- Ventifact sameAs Q201916.
- Ventifact sameAs Windkanter.
- Ventifact sameAs Ventifacto.
- Ventifact sameAs 삼릉석.
- Ventifact sameAs Ventifaktas.
- Ventifact sameAs Windkei.
- Ventifact sameAs Ventifakt.
- Ventifact sameAs m.01ktxm.
- Ventifact sameAs Korázny_hranec.
- Ventifact sameAs Вентифакт.
- Ventifact sameAs Вентифакт.
- Ventifact sameAs Q201916.
- Ventifact wasDerivedFrom Ventifact?oldid=604771043.
- Ventifact depiction Weisse_Wüste.jpg.
- Ventifact isPrimaryTopicOf Ventifact.