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- Glacial_striation abstract "Glacial striations are scratches or gouges cut into bedrock by glacial abrasion.These scratches and gouges were first recognized as the result of a moving glacier in the late 18th century when Swiss alpinists first associated them with moving glaciers. They also noted that if they were visible today that the glaciers must also be receding.Glacial striations are usually multiple, straight, and parallel, representing the movement of the glacier using rock fragments and sand grains, embedded in the base of the glacier, as cutting tools. Large amounts of coarse gravel and boulders carried along underneath the glacier provide the abrasive power to cut trough-like glacial grooves. Finer sediments also in the base of the moving glacier further scour and polish the bedrock surface, forming a glacial pavement. Ice itself is not a hard enough material to change the shape of rock but because the ice has rock embedded in the basal surface it can effectively abrade the bedrock.Most glacial striations were exposed by the retreat of glaciers since the Last Glacial Maximum or the more recent Little Ice Age. As well as indicating the direction of flow of the glacial ice, the depth and extent of weathering of the striations may be used to estimate the duration of post-glacier exposure of the rock.An outstanding example of glacial grooves can be found at the Glacial Grooves at Kelleys Island, Ohio (a National Natural Landmark), the most impressive of which is 400 feet (120 m) long, 35 feet (11 m) wide, and up to 10 feet (3.0 m) deep. These grooves cut into the Columbus Limestone. Striations cover the sides and bottoms of the grooves.".
- Glacial_striation thumbnail Glacial_striation_21149.JPG?width=300.
- Glacial_striation wikiPageExternalLink glacial.
- Glacial_striation wikiPageID "2080127".
- Glacial_striation wikiPageLength "4608".
- Glacial_striation wikiPageOutDegree "15".
- Glacial_striation wikiPageRevisionID "682790057".
- Glacial_striation wikiPageWikiLink Abrasion_(geology).
- Glacial_striation wikiPageWikiLink Bedrock.
- Glacial_striation wikiPageWikiLink Category:Erosion.
- Glacial_striation wikiPageWikiLink Category:Glaciology.
- Glacial_striation wikiPageWikiLink Columbus_Limestone.
- Glacial_striation wikiPageWikiLink Inman_Valley,_South_Australia.
- Glacial_striation wikiPageWikiLink Kelleys_Island,_Ohio.
- Glacial_striation wikiPageWikiLink Last_Glacial_Maximum.
- Glacial_striation wikiPageWikiLink Little_Ice_Age.
- Glacial_striation wikiPageWikiLink National_Natural_Landmark.
- Glacial_striation wikiPageWikiLink Permian.
- Glacial_striation wikiPageWikiLink Quartz.
- Glacial_striation wikiPageWikiLink Shale.
- Glacial_striation wikiPageWikiLink File:Glacial_grooves.jpg.
- Glacial_striation wikiPageWikiLink File:Glacial_striation_21149.JPG.
- Glacial_striation wikiPageWikiLinkText "Glacial grooves and striations".
- Glacial_striation wikiPageWikiLinkText "Glacial pavement".
- Glacial_striation wikiPageWikiLinkText "Glacial striation".
- Glacial_striation wikiPageWikiLinkText "Glacially striated".
- Glacial_striation wikiPageWikiLinkText "Glaciated pavement".
- Glacial_striation wikiPageWikiLinkText "Striated bedrock surfaces".
- Glacial_striation wikiPageWikiLinkText "glacial grooves".
- Glacial_striation wikiPageWikiLinkText "glacial pavement".
- Glacial_striation wikiPageWikiLinkText "glacial pavements".
- Glacial_striation wikiPageWikiLinkText "glacial striation".
- Glacial_striation wikiPageWikiLinkText "grooves".
- Glacial_striation wikiPageWikiLinkText "striation".
- Glacial_striation wikiPageWikiLinkText "striations".
- Glacial_striation hasPhotoCollection Glacial_striation.
- Glacial_striation wikiPageUsesTemplate Template:Commons-inline.
- Glacial_striation wikiPageUsesTemplate Template:Convert.
- Glacial_striation wikiPageUsesTemplate Template:Glaciers.
- Glacial_striation wikiPageUsesTemplate Template:Reflist.
- Glacial_striation subject Category:Erosion.
- Glacial_striation subject Category:Glaciology.
- Glacial_striation hypernym Scratches.
- Glacial_striation type Process.
- Glacial_striation type Science.
- Glacial_striation type Subfield.
- Glacial_striation comment "Glacial striations are scratches or gouges cut into bedrock by glacial abrasion.These scratches and gouges were first recognized as the result of a moving glacier in the late 18th century when Swiss alpinists first associated them with moving glaciers.".
- Glacial_striation label "Glacial striation".
- Glacial_striation sameAs Glacial_striation.
- Glacial_striation sameAs Souvek.
- Glacial_striation sameAs Skurestribe.
- Glacial_striation sameAs Kritzung.
- Glacial_striation sameAs Estría_glacial.
- Glacial_striation sameAs Strie_glaciaire.
- Glacial_striation sameAs Jökulrák.
- Glacial_striation sameAs Striatura_glaciale.
- Glacial_striation sameAs მყინვარული_ნაკაწრი.
- Glacial_striation sameAs Gletsjerkras.
- Glacial_striation sameAs Skuringstripe.
- Glacial_striation sameAs Skuringsstripe.
- Glacial_striation sameAs Estrias_glaciais.
- Glacial_striation sameAs m.06ksh0.
- Glacial_striation sameAs Ледниковая_штриховка.
- Glacial_striation sameAs Isräfflor.
- Glacial_striation sameAs Льодовикова_штриховка.
- Glacial_striation sameAs Q625751.
- Glacial_striation sameAs Q625751.
- Glacial_striation wasDerivedFrom Glacial_striation?oldid=682790057.
- Glacial_striation depiction Glacial_striation_21149.JPG.
- Glacial_striation isPrimaryTopicOf Glacial_striation.