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They are created by a stream flowing within the permeable rock and eroding it from within, until the rock above collapses opening up a steep narrow valley which is then further eroded by the stream running across the impermeable valley floor. At the head of the valley the stream emerges from the
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at their lower ends. If the ponor cannot contain the high runoff during a flood event an intermittent flow may continue through the valley beyond the sink. Such a landform is called a semi-blind or half-blind valley.
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Underground Rivers: From the River Styx to the Rio San
Buenaventura, with occasional diversions
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landscapes, where a layer of permeable rock lies above an impermeable substrate such as
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58:. Water flowing through a steephead valley leaves via one or more
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110:, blind valleys (the preferred American term) are found in the
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with an abrupt ending. Such closed valleys may arise in
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rock as a spring. Notable examples can be found in the
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176:Gutiérrez, Francisco; Mateo Gutiérrez (2016).
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179:Landforms of the Earth: An Illustrated Guide
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95:and the Reculée d'Arbois with its head at
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91:, for example the Reculée de Baume at
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241:. Psychology Press. p. 152.
42:is a deep, narrow, flat bottomed
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1:
238:Fundamentals of Geomorphology
216:. Richard Heggen. p. 647
909:. You can help Knowledge by
235:Huggett, Richard J. (2003).
69:Blind valleys are typically
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901:This article related to
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114:and other karst regions.
210:Heggen, Richard (2015).
182:. Springer. p. 68.
97:Les Planches-près-Arbois
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149:Earth sciences portal
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877:Geographical feature
713:Volcanic crater lake
93:Baume-les-Messieurs
956:Canyons and gorges
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797:Artificial island
703:Submarine volcano
612:Continental shelf
579:coastal landforms
375:Continental plain
310:List of landforms
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971:Topography stubs
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832:Land reclamation
728:Volcanic plateau
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99:and its exit at
32:steephead valley
25:Reculée de Baume
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642:Mid-ocean ridge
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112:Driftless Area
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961:Geomorphology
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733:Volcanic plug
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567:Tunnel valley
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108:North America
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911:expanding it
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718:Volcanic dam
415:Alluvial fan
252:. Retrieved
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230:
218:. Retrieved
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193:. Retrieved
178:
171:
129:Gara Medouar
105:
81:
68:
40:blind valley
39:
35:
31:
29:
24:
577:Oceanic and
317:Mountainous
254:26 November
220:26 November
195:26 November
78:Development
950:Categories
903:topography
875:See also:
790:Artificial
698:Lava field
617:Coral reef
445:Floodplain
248:0415241464
163:References
157:Box canyon
87:region of
852:Reservoir
743:Wall rock
693:Lava dome
652:Peninsula
562:Ice field
519:Waterfall
382:Ice sheet
361:Tableland
301:landforms
124:Tasghîmût
64:sinkholes
48:limestone
36:steephead
812:Building
776:Sandhill
766:Dry lake
671:Volcanic
657:Seamount
339:Mountain
135:See also
118:Examples
16:Landform
966:Valleys
753:Aeolian
738:Volcano
678:Caldera
632:Isthmus
622:Estuary
602:Channel
557:Glacier
529:Glacial
467:Meander
435:Channel
407:Fluvial
351:Plateau
862:Tunnel
847:Quarry
842:Polder
807:Bridge
781:Tundra
761:Desert
683:Geyser
637:Lagoon
627:Island
542:Cirque
514:Valley
504:Strait
482:Rapids
455:island
425:Canyon
397:Tundra
392:Steppe
366:Valley
245:
186:
101:Arbois
89:France
60:ponors
44:valley
905:is a
837:Levee
827:Ditch
817:Canal
688:Guyot
607:Coast
587:Atoll
552:Fjord
547:Esker
537:Arête
509:Swamp
497:mouth
492:delta
487:River
472:Oasis
462:Levee
440:Cliff
420:Beach
387:Plain
356:Ridge
344:range
324:Butte
297:Earth
52:karst
907:stub
857:Road
771:Dune
597:Cape
477:Pond
450:Lake
430:Cave
334:Hill
329:Flat
256:2016
243:ISBN
222:2016
197:2016
184:ISBN
85:Jura
56:marl
23:The
822:Dam
592:Bay
299:'s
106:In
71:dry
62:or
50:or
38:or
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103:.
66:.
34:,
30:A
938:e
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924:v
913:.
289:e
282:t
275:v
258:.
224:.
199:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
