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- Chevron_(land_form) abstract "A chevron is a wedge-shaped sediment deposit observed on coastlines and continental interiors around the world. The term chevron was originally used independently by Maxwell and Haynes and Hearty and others for large, v-shaped, sub-linear to parabolic landforms in southwestern Egypt and on islands in the eastern, windward Bahamas. The Egyptian “chevrons” are active, wind-generated dunes, but the “chevrons” in the Bahamas are inactive and have been variously interpreted. The most common interpretation of large, chevron-shaped bed forms is that they are a form of parabolic dune, and that most examples are generated by wind action.In an alternative view, the Holocene Impact Research Group hypothesizes that the formations could be caused by tsunamis from meteorite impacts or submarine slides which lift sediment up and carry it hundreds of miles until depositing it on coastlines. Part of the evidence they cite for this hypothesis is that the sediments contain tiny marine fossils; however, such fossils can be moved by the wind, just like sand. The impact idea is controversial not only because chevrons are similar to wind-blown landforms found far from the ocean, but also because it is unlikely that there have been enough large impacts and landslides to explain the observed chevrons. Moreover, some computer models and sediment-transport analysis do not support this theory. For example, the orientation of chevrons along the southern coast of Madagascar do not line up with what these models of mega-tsunamis have simulated. Additional evidence against the mega-tsunami hypothesis is that the force of the water would not produce such regular bed forms.Many chevrons can be found in Australia, but others are concentrated around the coastlines of the world. For instance there are chevrons in Hither Hills State Park on Long Island and in Madagascar (such as the Fenambosy Chevron), as well as in interior sites of the United States such as the Palouse region of eastern Washington State, the Great Sand Dunes National Park and Preserve, and White Sands National Monument.".
- Chevron_(land_form) wikiPageExternalLink 14WAVE.html?pagewanted=all&_r=0.
- Chevron_(land_form) wikiPageExternalLink wave.600.jpg.
- Chevron_(land_form) wikiPageID "7955594".
- Chevron_(land_form) wikiPageLength "4556".
- Chevron_(land_form) wikiPageOutDegree "18".
- Chevron_(land_form) wikiPageRevisionID "630618221".
- Chevron_(land_form) wikiPageWikiLink Australia.
- Chevron_(land_form) wikiPageWikiLink Category:Coastal_and_oceanic_landforms.
- Chevron_(land_form) wikiPageWikiLink Category:Landforms.
- Chevron_(land_form) wikiPageWikiLink Coast.
- Chevron_(land_form) wikiPageWikiLink Coastline.
- Chevron_(land_form) wikiPageWikiLink Deposit_(geology).
- Chevron_(land_form) wikiPageWikiLink Deposition_(geology).
- Chevron_(land_form) wikiPageWikiLink Dune.
- Chevron_(land_form) wikiPageWikiLink Fenambosy_Chevron.
- Chevron_(land_form) wikiPageWikiLink Great_Sand_Dunes_National_Park_and_Preserve.
- Chevron_(land_form) wikiPageWikiLink Hither_Hills_State_Park.
- Chevron_(land_form) wikiPageWikiLink Holocene_Impact_Research_Group.
- Chevron_(land_form) wikiPageWikiLink Holocene_Impact_Working_Group.
- Chevron_(land_form) wikiPageWikiLink Long_Island.
- Chevron_(land_form) wikiPageWikiLink Madagascar.
- Chevron_(land_form) wikiPageWikiLink Meteorite.
- Chevron_(land_form) wikiPageWikiLink Parabolic_dune.
- Chevron_(land_form) wikiPageWikiLink Sediment.
- Chevron_(land_form) wikiPageWikiLink The_New_York_Times.
- Chevron_(land_form) wikiPageWikiLink Tsunami.
- Chevron_(land_form) wikiPageWikiLink Wedge_(geometry).
- Chevron_(land_form) wikiPageWikiLink White_Sands_National_Monument.
- Chevron_(land_form) wikiPageWikiLinkText "Chevron (land form)".
- Chevron_(land_form) wikiPageWikiLinkText "chevron".
- Chevron_(land_form) wikiPageWikiLinkText "chevron-shaped land features".
- Chevron_(land_form) wikiPageWikiLinkText "chevrons".
- Chevron_(land_form) hasPhotoCollection Chevron_(land_form).
- Chevron_(land_form) wikiPageUsesTemplate Template:About.
- Chevron_(land_form) wikiPageUsesTemplate Template:Citation.
- Chevron_(land_form) wikiPageUsesTemplate Template:Reflist.
- Chevron_(land_form) subject Category:Coastal_and_oceanic_landforms.
- Chevron_(land_form) subject Category:Landforms.
- Chevron_(land_form) hypernym Deposit.
- Chevron_(land_form) type Library.
- Chevron_(land_form) comment "A chevron is a wedge-shaped sediment deposit observed on coastlines and continental interiors around the world. The term chevron was originally used independently by Maxwell and Haynes and Hearty and others for large, v-shaped, sub-linear to parabolic landforms in southwestern Egypt and on islands in the eastern, windward Bahamas. The Egyptian “chevrons” are active, wind-generated dunes, but the “chevrons” in the Bahamas are inactive and have been variously interpreted.".
- Chevron_(land_form) label "Chevron (land form)".
- Chevron_(land_form) sameAs شيفرون_(أراض_ترسبية).
- Chevron_(land_form) sameAs Deposito_sedimentario_chevron.
- Chevron_(land_form) sameAs m.026lc9l.
- Chevron_(land_form) sameAs Шевронні_дюни.
- Chevron_(land_form) sameAs Q3705697.
- Chevron_(land_form) sameAs Q3705697.
- Chevron_(land_form) wasDerivedFrom Chevron_(land_form)?oldid=630618221.
- Chevron_(land_form) isPrimaryTopicOf Chevron_(land_form).