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50:. The passage of glacial ice over underlying bedrock often results in asymmetric erosional forms as a result of abrasion on the "stoss" (upstream) side of the rock, and plucking (i.e. pieces cracked off) on the "lee" (downstream) side. Some geologists limit the term to features on scales of a metre to several hundred metres and refer to larger features as
172:
that a "roches moutonnées surface" is a continuous bedrock surface having a resemblance to the continuous, wavy or undulating rows of curls seen in French wigs at the time of Horace de
Saussure while a simple stoss and lee feature refers only to a bedrock knob having a smooth stoss side and a plucked lee side appearance.
171:
Prest (1983) specifies a distinction between a glaciated "roches moutonnées surface" and a simple "stoss and lee" glacial feature. He says that the term "roches moutonnées surface" has been abused in the literature in which the term became interchangeable with the term "stoss and lee". He points out
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or quarrying, an erosional process initiated when ice melts slightly by pressure and seeps into cracks in the rock. When the water refreezes, the rock becomes attached to the glacier. But as the glacier continues its forward progress it subjects the stone to
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The contrasting appearance of the erosional stoss and lee aspects is very defined on roches moutonnées; all the sides and edges have been smoothed and eroded in the direction travelled by the glacier that once passed over it. It is often marked with
130:, ripping chunks away from the rock formation. Studies show that the plucking of the lee side is a much more significant erosional process than the abrasion of the stoss side.
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Prest, V.K. (1983). Canada’s heritage of glacial features. Miscellaneous Report 28, Geological Survey of Canada, pp. 26–27, fig. 24 a, b and c
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Plains, steps, hilly relief and valleys in northern Sweden – review, interpretations and implications for conclusions on
Phanerozoic tectonics
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that contributes to their shape typically predates glaciation, and roche moutonnée-like forms can be found in tropical areas such as
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The side profile of a stoss and lee glaciated, bedrock knob (an erosional feature) is opposite to that of a
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Roches moutonnées may not be entirely glacial landforms, since they may have already had a similar shape
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that were fashionable amongst French gentry in his era and which were smoothed over with
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Even larger examples are known from Sweden where they are referred to as
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A roche moutonnée and perched boulders, northeastern
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mining and then become weathered resemble roches moutonnées.
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137:(a depositional feature). In a drumlin, the steep side is
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The rough and craggy down-ice (leeward) side is formed by
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427:. Don Mills, Ontario: Oxford University Press. pp.
281:"Why Geologists Think Glacial Mountains Look Like Sheep"
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Pages displaying short descriptions of redirect targets
54:, though they are formed in essentially the same way.
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in 1786. He saw in these rocks a resemblance to the
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195:in Sweden, rock surfaces that have been exposed by
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211: – Landform created by the action of glaciers
152:. The Swedish flyggbergs have been interpreted by
16:Rock formation created by the passing of a glacier
402:. Upper Saddle River, NJ: Prentice Hall. p.
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101:An oblique view of a roche moutonnée surface at
485:A roche moutonnée, Melville Peninsula, Nunavut
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475:A roche moutonnée, northern Abitibi, Québec
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424:Geomorphology: A Canadian Perspective
330:from the original on October 26, 2016
141:the approaching glacier, rather than
491:Canadian Landscapes Photo Collection
481:Canadian Landscapes Photo Collection
471:Canadian Landscapes Photo Collection
394:Tarbuck, E.J.; F.K. Lutgens (2002).
13:
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62:The 18th-century Alpine explorer
1122:Template:Periglacial environment
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23:Roche moutonnée near Myot Hill,
291:from the original on 2017-07-15
351:
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279:McInnes, Marnie (2017-07-07).
262:Prentice Hall, 2011, 11th ed.
258:Lutgens, Fred and Ed Tarbuck,
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238:Douglas Benn and David Evans,
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242:Arnold, London, 1st ed. 1998
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46:created by the passing of a
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489:Geological Survey of Canada
479:Geological Survey of Canada
469:Geological Survey of Canada
321:Geological Survey of Sweden
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64:Horace-Bénédict de Saussure
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240:Glaciers & Glaciation,
1143:Glacial erosion landforms
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421:Trenhaile, Alan (2007).
310:Lidmar-Bergström, Karna
156:and others as reshaped
312:; Olvmo, Mats (2015).
260:Essentials of Geology,
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27:
1060:Giant current ripples
460:at Wikimedia Commons
107:Northwest Territories
100:
93:
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997:Moraine-dammed lake
824:Subglacial eruption
361:Geografiska Annaler
829:Subglacial volcano
812:Volcanic relations
116:glacial striations
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616:Accumulation zone
458:Roches moutonnées
456:Media related to
438:978-0-19-542474-4
209:Glacial landforms
177:before glaciation
68:Roches moutonnées
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368:(4): 323–331.
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975:Depositional
965:Zungenbecken
963:
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894:Glacial lake
889:Glacial horn
803:Mass balance
791:Measurements
727:Accumulation
651:Glacier head
646:Glacier cave
590:Rock glacier
450:
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332:. Retrieved
304:
293:. Retrieved
285:The Atlantic
284:
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154:Sten Rudberg
149:
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1080:Outwash fan
1075:Kettle hole
959:Valley step
939:Trough lake
919:Ribbon lake
879:Finger lake
621:Bergschrund
185:East Africa
86:Description
78:fat (hence
1107:Glaciology
1090:Urstromtal
1070:Kame delta
1022:Till plain
819:Jökulhlaup
777:Starvation
656:Ice divide
570:Ice stream
319:(Report).
295:2017-07-15
219:References
162:whalebacks
158:inselbergs
150:flyggbergs
32:glaciology
852:Erosional
844:Landforms
715:Processes
696:Randkluft
691:Penitente
636:Dirt cone
565:Ice shelf
560:Ice sheet
555:Ice field
193:Ivö Klack
189:Australia
80:moutonnée
58:Etymology
40:sheepback
1137:Category
1112:Category
1050:Diluvium
1045:Alpentor
954:U-valley
798:Ice core
767:Plucking
722:Ablation
706:Terminus
631:Crevasse
626:Blue ice
526:Glaciers
334:June 29,
325:Archived
289:Archived
203:See also
181:Jointing
143:trailing
123:plucking
25:Scotland
992:Moraine
982:Drumlin
909:Nunatak
772:Retreat
737:Calving
681:Moraine
666:Icefall
604:Anatomy
575:Ledoyom
550:Ice cap
135:drumlin
48:glacier
42:) is a
1085:Sandur
929:Suncup
914:P-form
864:Cirque
747:Motion
686:Moulin
545:Cirque
540:Aufeis
435:
410:
382:521265
380:
266:
246:
197:kaolin
139:facing
76:mutton
1055:Esker
884:Fjord
859:Arête
782:Surge
742:Creep
701:Sérac
533:Types
429:180–1
378:JSTOR
328:(PDF)
317:(PDF)
1117:List
1065:Kame
934:Tarn
834:Tuya
641:Firn
433:ISBN
408:ISBN
366:70 A
336:2016
264:ISBN
244:ISBN
187:and
145:it.
72:wigs
38:(or
34:, a
404:342
370:doi
164:or
30:In
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227:^
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372::
338:.
298:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
