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TitleQuaternary stratigraphy of Canada - a Canadian contribution to IGCP Project 24
DownloadDownloads
AuthorFulton, R J (ed.)
SourceGeological Survey of Canada, Paper 84-10, 1984, 210 pages, https://doi.org/10.4095/119769 (Open Access)
Year1984
Documentserial
Lang.English
MapsPublication contains 1 map
Map Info.surficial geology, glacial features, 1:7,500,000
Mediapaper; on-line; digital
RelatedThis publication contains Prest, V K; (1984). Late Wisconsinan glacier complex, Geological Survey of Canada, "A" Series Map no. 1584A
File formatpdf
ProvinceNova Scotia; New Brunswick; Quebec; Ontario; Manitoba; Saskatchewan; Alberta; British Columbia; Yukon; Canada; Northwest Territories; Prince Edward Island; Western offshore region; Eastern offshore region; Northern offshore region; Nunavut; Newfoundland and Labrador
NTS1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65; 67; 66; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 85; 84; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114; 115; 116; 117; 120; 340; 560
AreaLabrador
Lat/Long WENS-141.0000 -50.0000 90.0000 41.7500
Lat/Long WENS-88.0000 -48.0000 76.0000 60.0000
Lat/Long WENS-92.0000 -70.0000 49.0000 40.0000
Subjectsstratigraphy; surficial geology/geomorphology; glacial stages; interglacial stages; glacial history; glacial deposits; glaciation; radiocarbon dating; glaciers; illinoian glacial stage; wisconsinian glacial stage; Olympia Interglacial Stage; Igcp Project 24; Quaternary
Illustrationsphotographs
Released1984 11 01; 2013 10 17
AbstractThe limits, component parts, and generalized ice flow directions of the last glacier complex in North America are portrayed on Map 1584A. Because a single line boundary cannot reasonably be fitted to the available information, two portrayals of ice extent are presented. The maximum portrayal limit is the outermost one that con reasonably be attributed to the Late Wisconsinan (<25 ka). The minimum portrayal limit is an attempt to correlate a wide variety of field studies that indicate, suggest, or infer less extensive Late Wisconsinan ice than has generally been claimed. Neither the minimum nor the maximum portrayals can presently be accepted entirely; the actual maximum limit may lie somewhere in between the two. The approximate times when the ice limits were reached are indicated though little general agreement exists as to the implication of these dates; they do serve to indicate the nonsynchronous development of the ice cover. Because age concepts are in most places embodied in the minimum and maximum portrayals, a number of anomalies occur; for example in some places the minimum (younger?) portrayal overlaps the maximum (older?) (as in Minnesota and the Dakotas). ln other areas, such as along the Pacific coast, the outer or maximum portrayal of the Late Wisconsinan limit cannot be separated from the all-time glacial limit. In the western Queen Elizabeth Islands it is presently impossible to show a maximum portrayal of the Late Wisconsinan ice limit, in view of existing controversies. This report provides information on the component parts of the North American Late Wisconsinan ice sheet complex, discusses their inter-relationships and the problems of establishing their outer limits. The report points out the controversial aspects of our knowledge of the last ice sheet and thereby focuses attention on the problems and areas of greatest concern.
GEOSCAN ID119769