Stratigraphy, Sediment Dispersal and Facies Analysis of the Pennsylvanian Pictou Group in New Brunswick

Lithostratigraphy of the Prince Edward Island redbeds

“…Carboniferous stratigraphy of the region (van de Poll, 1983). Following a comprehensive study and review of the mineral economic potential of the Island (Milligan, 1949) new studies on the surficial and bedrock geology were undertaken by the Geo logical Survey of Canada between 1953and 1973(Crowl, 1960a, 1960bCrowl and Frankel, 1970;Frankel, 1960Frankel, , 1966Frankel and Crowl, 1970;Prest, 1962Prest, ,1964Prest, ,1972Prest, ,1973Prest and Brady, 1964;Prest et al, 1969).…”

“…Following a comprehensive study and review of the mineral economic potential of the Island (Milligan, 1949) new studies on the surficial and bedrock geology were undertaken by the Geo logical Survey of Canada between 1953and 1973(Crowl, 1960a, 1960bCrowl and Frankel, 1970;Frankel, 1960Frankel, , 1966Frankel and Crowl, 1970;Prest, 1962Prest, ,1964Prest, ,1972Prest, ,1973Prest and Brady, 1964;Prest et al, 1969). Minor occurrences of uranium were encountered in the redbeds mainly around Miminigash (Prest etal., 1969) but a regional assessment of the uranium potential of the redbeds failed to identify economic concentra tions of this energy resource (Dunsmore, 1977;van de Poll, 1983). The most recent stratigraphic work (van de Poll, 1983;van de Poll and Forbes, 1984;van de Poll and Ryan, 1985) was undertaken with the objective of subdividing the Island redbeds into mappable lithostratigraphic units for the purpose of correla tion, to better understand their structure and to form a basis for future economic assessment of the strata.…”

“…Minor occurrences of uranium were encountered in the redbeds mainly around Miminigash (Prest etal., 1969) but a regional assessment of the uranium potential of the redbeds failed to identify economic concentra tions of this energy resource (Dunsmore, 1977;van de Poll, 1983). The most recent stratigraphic work (van de Poll, 1983;van de Poll and Forbes, 1984;van de Poll and Ryan, 1985) was undertaken with the objective of subdividing the Island redbeds into mappable lithostratigraphic units for the purpose of correla tion, to better understand their structure and to form a basis for future economic assessment of the strata.…”

“…The basal grey beds, as well as the strata of the grey and red transition zone, have previously been assigned to the Pictou Group (cf. Bell, 1944;Barss and Hacquebard, 1967;Hacquebard, 1972), but the redbeds of Prince Edward Island have not yet formally been given a stratigraphic designation, although Barss and Hacquebard (1967), Hacquebard (1972), andvan de Poll (1983) informally extended the Pictou Group upward to include the redbeds.…”

Newly identified Carboniferous units (the Pointe Sawyer and Chemin-des-Pêcheurs formations) in the Gaspé Peninsula, Quebec; implications regarding the evolution of the northwestern sector of the Maritimes Basin

“…It must have blanketed the whole Chaleur Bay region prior to post-Carboniferous erosion, as must the Pennsylvanian to Permian beds of the Pictou Group, which occupy the south shore of the Bay and most of the Gulf of St. Lawrence (Legun and Rust 1982;van de Poll 1973). According to Ryan and Zentilli (1993), 1-4 km of the original late Paleozoic cover of the Maritimes has been eroded since Permian time, most of it prior to the Jurassic (also see Howie andBarss 1975 andvan de Poll et al 1995, for a synthesis of the upper Paleozoic stratigraphy of the Maritimes).…”