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- Fin_(geology) abstract "Fins are narrow, residual walls of hard sedimentary rock (e.g., sandstone, limestone) that remain upright after adjacent rock has been eroded away along systematic parallel joints or fractures on either side. (They are named by analogy with a fish's dorsal fin, which they resemble.) A fin is typically formed when a narrow butte or plateau develops a series of vertical cracks in a parallel pattern (often due to tensional stresses along anticlinal or monoclinal fold axes). Differential water erosion, sometimes as part of a freeze-thaw cycle, opens the cracks wider and wider over time. Where two or more fins are present, a slot canyon may be formed between them. A wall left standing in between two slot canyons may be termed a fin. Alternatively, an entirely isolated single fin may develop where a rock stratum is notably harder (more resistant to weathering) relative to neighboring strata. Fins are considered an intermediary stage in the formation of other striking erosional features including alcoves, windows and arches; these are natural holes that form along cracks and weak spots in the sides of fins. Myriads of fins, and more advanced erosional features, may be seen at Arches National Park in Utah, US.Rock fins and arches are believed to form slowly over long periods of time by physical and chemical weathering. Four steps are proposed: (1) uplift that causes deep vertical, parallel fractures to form; (2) weathering and erosion that enlarge fractures resulting in narrow walls or fins; (3) continuing erosion with some fins breached from below; and (4) continued weathering that enlarges the holes and eventually causes the arch to collapse, forming spires or hoodoos.".
- Fin_(geology) thumbnail Hoodoo_formation-Big.jpg?width=300.
- Fin_(geology) wikiPageID "47956556".
- Fin_(geology) wikiPageLength "2947".
- Fin_(geology) wikiPageOutDegree "29".
- Fin_(geology) wikiPageRevisionID "685759032".
- Fin_(geology) wikiPageWikiLink Alcove.
- Fin_(geology) wikiPageWikiLink Anticline.
- Fin_(geology) wikiPageWikiLink Arches_National_Park.
- Fin_(geology) wikiPageWikiLink Butte.
- Fin_(geology) wikiPageWikiLink Category:Erosion_landforms.
- Fin_(geology) wikiPageWikiLink Category:Rock_formations.
- Fin_(geology) wikiPageWikiLink Colorado.
- Fin_(geology) wikiPageWikiLink Colorado_Springs,_Colorado.
- Fin_(geology) wikiPageWikiLink Devils_Garden.
- Fin_(geology) wikiPageWikiLink Dorsal_fin.
- Fin_(geology) wikiPageWikiLink Fiery_Furnace_(Arches_National_Park).
- Fin_(geology) wikiPageWikiLink Garden_of_the_Gods.
- Fin_(geology) wikiPageWikiLink Hoodoo_(geology).
- Fin_(geology) wikiPageWikiLink Joint_(geology).
- Fin_(geology) wikiPageWikiLink Limestone.
- Fin_(geology) wikiPageWikiLink Mars.
- Fin_(geology) wikiPageWikiLink Matijevic_Hill.
- Fin_(geology) wikiPageWikiLink Monocline.
- Fin_(geology) wikiPageWikiLink Natural_arch.
- Fin_(geology) wikiPageWikiLink Nelson_Rocks.
- Fin_(geology) wikiPageWikiLink Plateau.
- Fin_(geology) wikiPageWikiLink Sandstone.
- Fin_(geology) wikiPageWikiLink Sedimentary_rock.
- Fin_(geology) wikiPageWikiLink Seneca_Rocks.
- Fin_(geology) wikiPageWikiLink Slot_canyon.
- Fin_(geology) wikiPageWikiLink Utah.
- Fin_(geology) wikiPageWikiLink West_Virginia.
- Fin_(geology) wikiPageWikiLink File:Hoodoo_formation-Big.jpg.
- Fin_(geology) wikiPageWikiLinkText "Fin (geology)".
- Fin_(geology) wikiPageWikiLinkText "fin".
- Fin_(geology) wikiPageWikiLinkText "fins".
- Fin_(geology) wikiPageUsesTemplate Template:Geology-stub.
- Fin_(geology) subject Category:Erosion_landforms.
- Fin_(geology) subject Category:Rock_formations.
- Fin_(geology) hypernym Walls.
- Fin_(geology) type HistoricPlace.
- Fin_(geology) comment "Fins are narrow, residual walls of hard sedimentary rock (e.g., sandstone, limestone) that remain upright after adjacent rock has been eroded away along systematic parallel joints or fractures on either side. (They are named by analogy with a fish's dorsal fin, which they resemble.) A fin is typically formed when a narrow butte or plateau develops a series of vertical cracks in a parallel pattern (often due to tensional stresses along anticlinal or monoclinal fold axes).".
- Fin_(geology) label "Fin (geology)".
- Fin_(geology) wasDerivedFrom Fin_(geology)?oldid=685759032.
- Fin_(geology) depiction Hoodoo_formation-Big.jpg.
- Fin_(geology) isPrimaryTopicOf Fin_(geology).