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TitleGlacial geomorphology and pleistocene history of central British Columbia
AuthorTipper, H W
SourceGeological Survey of Canada, Bulletin no. 196, 1971, 103 pages (8 sheets),
PublisherGeological Survey of Canada
MapsPublication contains 8 maps
Map Info.surficial geology, 1:250,000
Map Info.physiographic, 1:2,000,000
Mediapaper; on-line; digital
RelatedThis publication contains the following publications
File formatpdf
ProvinceBritish Columbia
NTS92N; 92O; 92P; 93B; 93C; 93G; 93H; 93J
Lat/Long WENS-126.0000 -120.0000 55.0000 51.0000
Subjectssurficial geology/geomorphology; drumlins; eskers; glacial features; ice movements; lacustrine deposits; meltwater channels; moraines; outwash; Fraser Glaciation; Quaternary
Released1971 01 01; 2013 03 13
AbstractDuring the Pleistocene epoch all of central British Columbia was covered by glacier ice that molded and sculptured a multitude of features from which the glacial events can be interpreted, The Fraser ice sheet was formed by the accumulation of snow and ice in the Coast and the Cariboo Mountains whence it flowed into the Interior Plateau as coalescent ice sheets, The ice from the two sources met near Fraser River resulting in a southeasterly confluent mass and a northerly flowing sheet . The latter, together with ice from the northern interior, flowed north easterly to the Rocky Mountains which blocked further advance, Deglaciation was a combination of frontal retreat, down wasting, and stagnation of large masses of ice. Later re-advance from the Coast. Mountains and Cariboo Mountains produced tongues and lobes of ice that extended into the Interior Plateau but did not coalesce as an ice sheet. Earlier glacial advances are believed to have been more extensive. At some time in early Pleistocene time , ice accumulated to form a thick central dome from which ice flowed radially over and through the Coast, Cariboo and Rocky Mountains.