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About: Fin (geology)     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:HistoricPlace, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: historic place New Facet based on Instances of this Class

A fin is a geological formation that is a narrow, residual wall of hard sedimentary rock that remains standing after surrounding rock has been eroded away along parallel joints or fractures. Fins are formed when a narrow butte or plateau develops many vertical, parallel cracks. There are two main modes of following erosion. The first is when water flows along joints and fractures and opens them wider and wider, eventually causing erosion. The second is where the rock type (stratum) is harder and more erosion resistant than neighboring rocks, causing the weaker rock to fall away.