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Lithofacies of Leda Clay in the Ottawa Basin of the Champlain Sea
In an attempt to establish the lithological variation of sediments in aselected part of the Champlain Sea, closely spaced core samples were usedin a number of stratigraphic borings that penetrated the entire suite offine sediments. Comparisons of sedimentary suites show that Ottawa valleysediments have many similarities to the Mississippi Delta and Black Seasediments, while revealing significant differences that relate to the particular glacio-isostatic conditions of the study region.
Geological Survey of Canada, Current Research (Online) no. 2000-D3
Cores drilled from a quarry north of Montreal show a distinct lithostratigraphic unit occurring below the Upper Cambrian Cairnside Formation. The unit was previously considered as the Covey Hill Formation of the Lower Potsdam Group. This paper describes the regional geological setting, lithology, and depositional environment of this unit. Evidence for considering the unit as part of the Rivière Aux Outardes Member (Clark, 1966) is presented. Correlations with other stratigraphic units in southern Quebec are discussed along with evidence for a possible Cambrian carbonate platform in the region. Two scenarios of possible regional depositional episodes are also hypothesized.
Bibliography of North American Geology
1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.
Ecology of a Managed Terrestrial Landscape
An examination of the big picture of ecological patterns and processes through a detailed case study of the vast managed forest region of Ontario. The book synthesizes ecological landscape knowledge, explores gaps in understanding, and offers suggestions for future directions.
