Intensity versus duration of bedrock weathering under periglacial conditions in high Arctic Canada
DOI:
https://doi.org/10.26485/BP/1986/30/12Keywords:
weathering forms, felsenmeer, bedrock featuresAbstract
A distinction is drawn between intensity and duration of bedrock weathering with reference to field observations compiled at widely scattered localities in the Canadian high Arctic. The influence of bedrock mineralogy, texture, porosity and structure on microfracturing and subsequent bedrock disintegration is discussed using examples. Preservation of periglacial features including felsenmeer beneath glacial ice is suggested. Other factors influencing both the development and preservation of weathering forms including tors and weathering pits are summarized based on observations compiled during the past four summers.
References
Andrews, J. T. and Miller, G. H., 1972 - Chemical weathering of tills and surficial deposits in east Baffin Island, NWT, Canada. In: Adams, W. P. and Helleiner, F. M. (eds.) International Geography 1972. 22nd International Geographical Congress, Montreal 1972. U. Toronto Press, Toronto; p. 5-7.
Basham, I. R., 1974 - Mineralogical changes associated with deep weathering of gabbro in Aberdeenshire. Clay Minerals, 10; p. 189-202.
Baynes, J. and Dearman, W. R., 1978a - The microfabric of a chemically weathered granite. Bull. Int. Assoc. Eng. Geol., 18; p. 91-100.
Baynes, J. and Dearman, W. R., 1978b - The relationships between the microfabric and the engineering properties of weathered grariite. Bull. Int. Assoc. Eng. Geol., 18; p. 191-197.
Birkeland, P. W., 1978 - Soil development as an indication of relative age of Quaternary deposits, Baffin Island, N.W.T., Canada. Arctic Alpine Res., 10; p. 715-731.
Bisdom, E., 1967 - The role of micro-crack systems in the spheroidal weathering of an intrusive granite in Galicia (NW Spain). Geol. en Mijnb., 46; p. 333-340.
Blake, W. Jr., 1977 - Glacial sculpture along the east-central coast of Euesmere Island. Arctic Archipelago; p. 107-115; In: Report of Activities, part C; Geol. Surv. Can., Paper 77-1C.
Blake, W; Jr., 1978a - Aspects of glacial history, Southeastern Ellesmere Island, District of Franklin. Current Research. Part A., Geol. Surv. Can., Paper 78-1A; p. 175-182.
Blake, W. Jr., 1978b - Rock weathering forms above Cory Glacier, Ellesmere Island, District of Franklin, Current Research Part B, Geol. Surv. Can., Paper 78-lB; p. 207-211.
Brookes, I. A., 1977 - Geomorphology and Quaternary geology of Codroy Lowland and adjacent plateaus, southwest Newfoundland. Can. J. Earth Sci., 14; p. 2101-2120.
Bustin, R. M. and Mathews, W. H., 1979 - Selective weathering of granite clasts. Can. J. Earth Sci., 16, p. 215-223
Carroll, D., 1970 - Rock Weathering. Plenum Press, New York; 203 p.
Christie, R. L., 1962 - Geology Southeast Ellesmere Island, District of Franklin. Geol. Surv. Can. Map 12-1952.
Christie, R. L., 1969 - Eastern Devon Island and southeastern Euesrriere Island, District of Franklin. Report of Activities, Part A, Geol. Surv. Can. Paper 69-1; p. 231-234.
Cooke, R. U., 1979 - Laboratory simulation of salt weathering processes in arid environments. Earth Surf. Proc., 4; p. 347-359.
Dumanowski, B., 1968 - Influence of petrographical differentiation, of granitoids on land forms. Geographia Polonica, 14; p. 93-8.
Dyke, A. S., 1976 - Tors and associated weathering phenomena. Somerset Island, District of Franklin. Report of activities, Part A, Geol. Surv. Can., Paper 76-1B; p. 211-216.
Dyke, A. S., 1977 - Quaternary geomorphology, glacial chronology, and climatic and sea-level history of the southwestern Cumerland Peninsula, Baffin Island, Northwest Territories, Canada. Ph.D. Thesis, University of Colorado, Boulder; 185 p.
Dyke, A. S., 1979 - Radiocarbon-dated Holocene emergence of Somerset Island, central Canadian Arctic p. 307-318; In: Current Research, Part B, Geol. Surv. Can., Paper.79-1B.
Dyke, A. S., 1980 - Redated Holocene whale bones from Somerset Island, District of Franklin, p. 269-271. Current Research, Part B; Geol. Surv. Can., Paper 80-1B.
England, J. H., 1974 - Glacial geology of Archer Fiord Lady Franklin Bay, Ellesmere Island. Ph.D. Thesis, University of Colorado, Boulder.
England, J. and Bradley, R. S., 1978 - Past glacial activity in the Canadian high Arctic. Science, 200; p. 265-270.
Frisch, T., Morgan, W. C. and Dunning, G. R. 1978- Reconnaissance geology of the Precambrian Shield on. Ellesmere and Coburg lslands, Canadian Arctic Archipelago. Current Research, Part A, Geol. Surv. Can. Paper 78-1A; p. 135-138.
Grant, D., 1977 - Glacial style and ice limits, the Quaternary stratigraphic record in the Atlantic Provinces, Canada; Geog. phys. et Quat., 31.
Hedges; J., 1969 - Opferkessel. Ztschr. f. Geomorph., 13; p. 22-55.
Hodgson, D. A., 1973 - Surficial geology and geomorphology of central Ellesmere Island. Geol. Surv. Can. Paper 73-1, Part A, Report of Activities; 203 p.
Hudec, P. P., 1973 - Weathering of rocks in arctic and subarctic environment, p. 313-335; In: Aitken, J. D. and Glass, D. J. Proceedings Symposium on the Geology of the Canadian Arctic. Geol. Assoc. Can.
Isherwood, D. J., 1975 - Soil geochemistry and rock weathering in an arctic environment. Ph.D. Thesis, University of Colorado, Boulder; 173 p.
Isherwood, D. J. and Street, A., 1976 - Biotite-induced grussification of the Boulder Creek granodiorite, Boulder Co., Colorado. Geol. Soc. Am. Bulletin, 87; p. 366-370.
Ives, J. D., 1975 - Delimitation of surface weathering zones in eastern Baffin Island, northern Labrador and Arctic Norway: A discussion. Geol. Soc. Am. Bulletin., 86; 1096-1100
Linton, D. L., 1955 - The problem of tors, Geogr. J., 121; p. 470-81.
Locke, W. W., 1979 - Etching of hornblende grains in arctic.soils: an indicator of relative age and paleoclimate. Quatern. Res., 11; p. 197-:-212.
Lowdon, J. A. and Blake, W. Jr., 1979 - Geological, Survey of Canada Radiocarbon Dates XIX, Geol. Surv. Can. Paper 79-7; 58 p.
Pheasant, D. R. and Andrews, J. T., 1972 - The Quaternary history of northern Cumberland Peninsula, Baffin Island, N.W.T. Part VIII. Chronology of Narpaing and Quajon Fiords during the past 120,000 years proceedings of the 24th lnterpational Geological Congress, Montreal, 1972, Section 12; p. 81-88.
Potts, A. S., 1970 - Frost action in rocks: some experimental data. Trans. Inst. Bri. Geog., 49; p. 109-124.
Samuelsson, L. and Werner, M., 1978 - Weathering pits in the Lake Mjorn area northeast of Goteborg. Geogr. Annal, 60A; p. 1-21.
Selby, M. J., 1972 - Antarctic tors. Ztschr. f. Geomorph., Supplbd, 13; p. 73-86.
Sperling, C.H.B. and Cooke, R.U., 1981 - Salt weathering in arid environments, I. Theoretical considerations. Bedford College Papers in Geography, 8, London; 60 p.
Sperling, C.H.B. and Cook, R.U., 1981 - Salt weathering in arid environments, II. Laboratories studies. Bedford College Papers in Geography, 9, London; 60 p.
Sugden, D. E., 1974 - Landscapes of glacial erosion in Greenland and their relationship to ice, topographic and bedrock conditions, p. 177-195; In: Waters, R. S. and Brown, E. H. (editors), Progress in geomorphology. Inst. Bri. Geog. Special Publication, 7; p. 177-195.
Sugden, D. E., 1976 - Glacial erosion by the Laurentide ice sheet and its relationship to ice, topographic and bedrock conditions. Unpubl. Rep. University of Aberdeen; 86 p.
Sugden, D. E., 1977 - Reconstruction of the morphology, dynamics and thermal characteristics of the Laurentide ice sheet at its maximum. Arctic and Alpine Res., 9; 22p.
Sugden, D. E. and Watts, S. H., 1977 - Tors, felsenmeer and glaciation in northern Cumberland Peninsula, Baffin Island. Can. J. Earth Sci., 14; p. 2817-2823.
Wang, C., Ross, G. J. and Rees, H. W., 1981 - Characteristics of residual and colluvial soils developed on granite and of the associated pre-Wisconsin landforms in north-central New Brunswick. Can, J. Earth Sci., 18; p. 487-494
Watts, S. H., 1979 - Some observations on rock weathering, Cumberland Peninsula, Baffin Island. Can. J. Earth Sci., 16; p. 977-983.
Watts, S. H., 1981a - Near coastal and incipient weathering features in the Cape Herschel - Alexandra Fiord Area, District of Franklin. Current Research, Part A, Geol. Surv, Can., Paper 81-1A; p. 389-394.
Watts, S. H., 1981b - Bedrock weathering features in a part of eastern High arctic Canada: their nature and significance. Annals of Glacial. Symposium on Glacial Erosion and Sedimentation, Geilo, Norway, August 1980; p. 170-175.
Watts, S. H., 1983 - Weathering pit formation in bedrock near Cory Glacier southeastern Ellesmere Island, District of Franklin; p. 487-491; In: Current Research, Part A. Geol. Surv. Can., Paper 83-1A.
Watts, S. H., 1988 - Weathering processes and products under arid Arctic conditions: A study from Ellesmere Island, Canada. Geogr. Annal.; 65A.
Wilson, M. J., 1970 - A study of weathering in a soil derived from biotite hornblende rock. Clay Minerals, 8; p. 291-303.
Winkler, E. M., 1980 - Selective weathering of granitic clasts: Discussion. Can. J. Earth Sci., 17; 956p.
