The Distribution of Ribbed Moraines in the Lac Naococane Region, Central Quebec, Canada

P Dunlop, C.D Clark

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Ribbed moraines are large subglacially formed transverse ridges that coverextensive areas of the beds of the former Laurentide, Fennoscandian and Irish ice sheets.Since the flow speeds and stability of ice sheets are known to be sensitive to conditionsoperating at the bed, a full understanding of the processes of ribbed moraine genesis arecritical if we are to appreciate their role in ice sheet dynamics. To date, advances inknowledge on how ribbed moraines are formed rely on inferences drawn from theircharacteristics. However, this approach is problematic given that ribbed morainecharacteristics are poorly known. Scrutiny of the literature reveals that detailedobservations are limited to small areas and rely on small sample sizes. Thus,generalisations drawn from this base cannot be regarded as being representative andremain an inadequate data source for testing the various hypotheses. The map formspart of a large study that investigated ribbed moraine characteristics in Ireland, Canadaand Sweden over a combined area of 81,000 km2 that has addressed this deficit. It showsthe distribution of ribbed moraine ridges in the Lac Naococane region, central Qu´ebecand covers an area of 32,400 km2. It comprises over 12,800 individual ridges and formspart of a database of over 33,000 individually mapped landforms which reveal ribbedmoraine characteristics to be more complex than has hitherto been reported.
LanguageEnglish
Pages59-70
Number of pages11
JournalJournal of Maps
Volumev2006
Publication statusPublished - 2006

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moraine
ice sheet
Canada
landform
Ireland
Sweden
deficit
distribution

Keywords

  • Ribbed Moraine
  • subglacial
  • Quebec

Cite this

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title = "The Distribution of Ribbed Moraines in the Lac Naococane Region, Central Quebec, Canada",
abstract = "Ribbed moraines are large subglacially formed transverse ridges that coverextensive areas of the beds of the former Laurentide, Fennoscandian and Irish ice sheets.Since the flow speeds and stability of ice sheets are known to be sensitive to conditionsoperating at the bed, a full understanding of the processes of ribbed moraine genesis arecritical if we are to appreciate their role in ice sheet dynamics. To date, advances inknowledge on how ribbed moraines are formed rely on inferences drawn from theircharacteristics. However, this approach is problematic given that ribbed morainecharacteristics are poorly known. Scrutiny of the literature reveals that detailedobservations are limited to small areas and rely on small sample sizes. Thus,generalisations drawn from this base cannot be regarded as being representative andremain an inadequate data source for testing the various hypotheses. The map formspart of a large study that investigated ribbed moraine characteristics in Ireland, Canadaand Sweden over a combined area of 81,000 km2 that has addressed this deficit. It showsthe distribution of ribbed moraine ridges in the Lac Naococane region, central Qu´ebecand covers an area of 32,400 km2. It comprises over 12,800 individual ridges and formspart of a database of over 33,000 individually mapped landforms which reveal ribbedmoraine characteristics to be more complex than has hitherto been reported.",
keywords = "Ribbed Moraine, subglacial, Quebec",
author = "P Dunlop and C.D Clark",
note = "This paper has an associated Map that forms part of the overall publication Reference text: ATTIG, J. W. (1985). Pleistocene geology of Vilas County, Wisconsin. Wisconsin Geology and Natural History Survey, Informational Circular 50, 32. AYLSWORTH, J. M. and SHILTS, W. W. (1989) Bedforms of the Keewatin Ice Sheet, Canada. Sedimentary Geology 62, 407-428. BOULTON, G. S. (1987) A theory of drumlin formation by subglacial deformation. In Drumlin Symposium. (Eds, Menzies, J. and Rose, J.) Balkema, Rotterdam, 25-80. BOUCHARD, M. A. (1980) Late Quaternary geology of the T´emiscamie area, central Quebec, Canada. Dissertation, McGill University, Department of Geological Sciences, 284 pp. BOUCHARD, M. A. (1989) Subglacial landforms and deposits in central and northern Qubec, Canada,with emphasis on Rogen moraines. Sedimentary Geology 62, 293-308. CLARK, C. D. and MEEHAN, R. (2001). Subglacial bedform geomorphology of the Irish Ice Sheet reveals major configuration changes during growth and decay. Journal of Quaternary Science 16, 483-496 DUNLOP, P. (2004) The Characteristics of Ribbed Moraine and Assessment of Theories for Their Genesis, Unpublished Ph.D. Thesis, The University of Sheffield, Department of Geography. DUNLOP, P. and CLARK, C. D. (in press) The Morphological Characteristics of Ribbed Moraine, Quaternary Science Reviews. DYKE, A. S., MORRIS, T. F., GREEN, D. E. C. and ENGLAND, J. (1992) Quaternary geology of Prince of Wales Island, Arctic Canada. Geological Survey of Canada Memoir 433, 142. FISHER, T. G. and SHAW, J. (1992) A depositional model for Rogen Moraine, with examples from the Avalon Peninsula, Newfoundland. Canadian Journal of Earth Sciences 29, 669-686. HATTESTRAND, C. (1997a). Glacial Geomorphology of Central and Northern Sweden, 1:1 250 000. In Ribbed Moraines and Fennoscandian Palaeoglaciology. Doctoral dissertation, Department of Physical Geography, Stockholm, Sweden, Motala Grafiska AB, Motala, Sweden. H¨ATTESTRAND, C. (1997b). Ribbed moraines in Sweden - distribution pattern and palaeoglaciological implications. Sedimentary Geology 111, 41-56. H¨ATTESTRAND, C. and KLEMAN, J. (1999) Ribbed moraine formation, Quaternary Science Reviews 18, 43-61. HINDMARSH, R. C. A. (1998a) The stability of a viscous till sheet coupled with ice flow, considered at wavelengths less than ice thickness. Journal of Glaciology 44, 288-292. HINDMARSH, R. C. A. (1998b) Drumlinization and drumlin-forming instabilities: viscous till mechanisms. Journal of Glaciology 44, 293-314 HINDMARSH, R. C. A. (1999) Coupled ice-till dynamics and the seeding of drumlins and bedrock forms. Annals of Glaciology 28, 221-230. JANSSON, K. (2005) Map of the glacial geomorphology of north-central Qu´ebec-Labrador, Canada, Journal of Maps, v2005, 46-56. KNIGHT, J. and McCABE, A. M. (1997). Identification and significance of ice-flow transverse subglacial ridges (Rogen moraines) in northern central Ireland, Journal of Quaternary Science 12 (6)519-534. LUNDQVIST, J. (1969) Problems of the so-called Rogen moraine. Sverige Geologiske Unders¨okning, Series C, 648. MARKGREN, M. and LASSILA, M. (1980) Problems of moraine morphology, Rogen moraine and Blattnick moraine. Boreas 9, 271-274. MENZIES, J. and SHILTS, W. W. (1996) Subglacial environments. In Past glacial environments: Sediments forms and techniques. (Ed, Menzies, J.) Butterworth-Heineman, Oxford. MOLLARD, J. O. and JAMES, R. (1984) Airphoto interpretation and the Canadian landscape. Canadian Government Publishing Centre, Hull Canada. M¨OLLER, P., (in press) Rogen moraine - an example of glacial reshaping of pre-existing landforms. Quaternary Science Reviews. PREST, V. K., GRANT, D. G. and RAMPTON, V.N. (1968) Glacial Map of Canada. Geological Survey of Canada, Map 1253A, 1:5,000,000. SHAW, J. (1979) Genesis of the Sveg till and Rogen moraines of central Sweden: a model of basal melt out. Boreas , 8, 409-426. SMITH, M. J., DUNLOP, P. and CLARK, C. D. (2005) An overview of sub-glacial bedforms in Ireland, mapped from digital elevation data. In Glacier Science and Environmental Change. (Ed, Knight, P.) Blackwell Publishing, p384-387. SOLLID, J. L. and S{\O}RBEL, L. (1994) Distribution of glacial landforms in southern Norway in relation to the thermal regime of the last continental ice sheet. Geografiska Annaler 76A, 25-35. SUGDEN, D. E. and JOHN, B. S. (1976) Glaciers and Landscape. Edward Arnold, London. THOMPSON, W. B. and BORNS, H. W. (eds) (1985) Surficial geology map of Maine, 1:500000. Maine Geological Survey, Department of Conservation.",
year = "2006",
language = "English",
volume = "v2006",
pages = "59--70",
journal = "Journal of Maps",
issn = "1744-5647",

}

The Distribution of Ribbed Moraines in the Lac Naococane Region, Central Quebec, Canada. / Dunlop, P; Clark, C.D.

In: Journal of Maps, Vol. v2006, 2006, p. 59-70.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The Distribution of Ribbed Moraines in the Lac Naococane Region, Central Quebec, Canada

AU - Dunlop, P

AU - Clark, C.D

N1 - This paper has an associated Map that forms part of the overall publication Reference text: ATTIG, J. W. (1985). Pleistocene geology of Vilas County, Wisconsin. Wisconsin Geology and Natural History Survey, Informational Circular 50, 32. AYLSWORTH, J. M. and SHILTS, W. W. (1989) Bedforms of the Keewatin Ice Sheet, Canada. Sedimentary Geology 62, 407-428. BOULTON, G. S. (1987) A theory of drumlin formation by subglacial deformation. In Drumlin Symposium. (Eds, Menzies, J. and Rose, J.) Balkema, Rotterdam, 25-80. BOUCHARD, M. A. (1980) Late Quaternary geology of the T´emiscamie area, central Quebec, Canada. Dissertation, McGill University, Department of Geological Sciences, 284 pp. BOUCHARD, M. A. (1989) Subglacial landforms and deposits in central and northern Qubec, Canada,with emphasis on Rogen moraines. Sedimentary Geology 62, 293-308. CLARK, C. D. and MEEHAN, R. (2001). Subglacial bedform geomorphology of the Irish Ice Sheet reveals major configuration changes during growth and decay. Journal of Quaternary Science 16, 483-496 DUNLOP, P. (2004) The Characteristics of Ribbed Moraine and Assessment of Theories for Their Genesis, Unpublished Ph.D. Thesis, The University of Sheffield, Department of Geography. DUNLOP, P. and CLARK, C. D. (in press) The Morphological Characteristics of Ribbed Moraine, Quaternary Science Reviews. DYKE, A. S., MORRIS, T. F., GREEN, D. E. C. and ENGLAND, J. (1992) Quaternary geology of Prince of Wales Island, Arctic Canada. Geological Survey of Canada Memoir 433, 142. FISHER, T. G. and SHAW, J. (1992) A depositional model for Rogen Moraine, with examples from the Avalon Peninsula, Newfoundland. Canadian Journal of Earth Sciences 29, 669-686. HATTESTRAND, C. (1997a). Glacial Geomorphology of Central and Northern Sweden, 1:1 250 000. In Ribbed Moraines and Fennoscandian Palaeoglaciology. Doctoral dissertation, Department of Physical Geography, Stockholm, Sweden, Motala Grafiska AB, Motala, Sweden. H¨ATTESTRAND, C. (1997b). Ribbed moraines in Sweden - distribution pattern and palaeoglaciological implications. Sedimentary Geology 111, 41-56. H¨ATTESTRAND, C. and KLEMAN, J. (1999) Ribbed moraine formation, Quaternary Science Reviews 18, 43-61. HINDMARSH, R. C. A. (1998a) The stability of a viscous till sheet coupled with ice flow, considered at wavelengths less than ice thickness. Journal of Glaciology 44, 288-292. HINDMARSH, R. C. A. (1998b) Drumlinization and drumlin-forming instabilities: viscous till mechanisms. Journal of Glaciology 44, 293-314 HINDMARSH, R. C. A. (1999) Coupled ice-till dynamics and the seeding of drumlins and bedrock forms. Annals of Glaciology 28, 221-230. JANSSON, K. (2005) Map of the glacial geomorphology of north-central Qu´ebec-Labrador, Canada, Journal of Maps, v2005, 46-56. KNIGHT, J. and McCABE, A. M. (1997). Identification and significance of ice-flow transverse subglacial ridges (Rogen moraines) in northern central Ireland, Journal of Quaternary Science 12 (6)519-534. LUNDQVIST, J. (1969) Problems of the so-called Rogen moraine. Sverige Geologiske Unders¨okning, Series C, 648. MARKGREN, M. and LASSILA, M. (1980) Problems of moraine morphology, Rogen moraine and Blattnick moraine. Boreas 9, 271-274. MENZIES, J. and SHILTS, W. W. (1996) Subglacial environments. In Past glacial environments: Sediments forms and techniques. (Ed, Menzies, J.) Butterworth-Heineman, Oxford. MOLLARD, J. O. and JAMES, R. (1984) Airphoto interpretation and the Canadian landscape. Canadian Government Publishing Centre, Hull Canada. M¨OLLER, P., (in press) Rogen moraine - an example of glacial reshaping of pre-existing landforms. Quaternary Science Reviews. PREST, V. K., GRANT, D. G. and RAMPTON, V.N. (1968) Glacial Map of Canada. Geological Survey of Canada, Map 1253A, 1:5,000,000. SHAW, J. (1979) Genesis of the Sveg till and Rogen moraines of central Sweden: a model of basal melt out. Boreas , 8, 409-426. SMITH, M. J., DUNLOP, P. and CLARK, C. D. (2005) An overview of sub-glacial bedforms in Ireland, mapped from digital elevation data. In Glacier Science and Environmental Change. (Ed, Knight, P.) Blackwell Publishing, p384-387. SOLLID, J. L. and SØRBEL, L. (1994) Distribution of glacial landforms in southern Norway in relation to the thermal regime of the last continental ice sheet. Geografiska Annaler 76A, 25-35. SUGDEN, D. E. and JOHN, B. S. (1976) Glaciers and Landscape. Edward Arnold, London. THOMPSON, W. B. and BORNS, H. W. (eds) (1985) Surficial geology map of Maine, 1:500000. Maine Geological Survey, Department of Conservation.

PY - 2006

Y1 - 2006

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AB - Ribbed moraines are large subglacially formed transverse ridges that coverextensive areas of the beds of the former Laurentide, Fennoscandian and Irish ice sheets.Since the flow speeds and stability of ice sheets are known to be sensitive to conditionsoperating at the bed, a full understanding of the processes of ribbed moraine genesis arecritical if we are to appreciate their role in ice sheet dynamics. To date, advances inknowledge on how ribbed moraines are formed rely on inferences drawn from theircharacteristics. However, this approach is problematic given that ribbed morainecharacteristics are poorly known. Scrutiny of the literature reveals that detailedobservations are limited to small areas and rely on small sample sizes. Thus,generalisations drawn from this base cannot be regarded as being representative andremain an inadequate data source for testing the various hypotheses. The map formspart of a large study that investigated ribbed moraine characteristics in Ireland, Canadaand Sweden over a combined area of 81,000 km2 that has addressed this deficit. It showsthe distribution of ribbed moraine ridges in the Lac Naococane region, central Qu´ebecand covers an area of 32,400 km2. It comprises over 12,800 individual ridges and formspart of a database of over 33,000 individually mapped landforms which reveal ribbedmoraine characteristics to be more complex than has hitherto been reported.

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KW - subglacial

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