| Title | Lower and Middle Devonian outcrop stratigraphy of northeast British Columbia |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Nadjiwon, L M; Morrow, D W; McCracken, A D; Coniglio, M |
| Source | Central Foreland NATMAP Project: Proterozoic to Devonian stratigraphic sections in British Columbia and Yukon; by Lane, L S (ed.); MacNaughton, R B (ed.); Geological Survey of Canada, Bulletin 603, 2017 p. 223-292, https://doi.org/10.4095/299868
 Open Access |
| Image |  |
| Year | 2017 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is contained in Central Foreland NATMAP
Project: Proterozoic to Devonian stratigraphic sections in British Columbia and Yukon |
| File format | readme
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| File format | pdf; csv; xlsx |
| Province | British Columbia |
| NTS | 94B; 94C; 94F; 94G; 94J; 94K; 94N; 94O |
| Area | Halfway River; Trutch |
| Lat/Long WENS | -126.0000 -122.0000 60.0000 56.0000 |
| Subjects | regional geology; stratigraphy; paleontology; systematic stratigraphy; lithostratigraphy; biostratigraphy; fossils; macrofossils; microfossils; conodonts; depositional environment; hydrothermal systems;
paleogeography; bedrock geology; lithology; sedimentary rocks; dolomites; limestones; sandstones; clastics; breccias; correlations; sedimentary structures; stratigraphic correlations; Canadian Cordillera; Cordilleran Foreland; Macdonald Platform;
Presqu'ile Barrier Reef Complex; Rocky Mountain Thrust Belt; Presqu'ile Dolomite; Chinchaga Formation; Slave Point Formation; Dunedin Formation; Manetoe Dolomite; Besa River Formation; Laurier Embayment; Stromatoporoids; Brachiopods; Muncho-McConnell
Formation; Wokkpash Formation; Stone Formation; Watt Mountain Formation; Great Slave Shear Zone; Liard Line; Opsika Embayment; Keg River Formation; Road River Formation; Meilleur River Embayment; Cassiar Platform; Tintina Fault; Funeral Formation;
Nahanni Formation; Peace River Arch; Muskeg Formation; Nonda Formation; Phanerozoic; Paleozoic; Devonian |
| Illustrations | location maps; geoscientific sketch maps; tables; stratigraphic charts; correlation charts; schematic cross-sections; photographs; lithologic sections |
| Program | Central Foreland NATMAP Project |
| Released | 2017 12 29 |
| Abstract | Presqu'ile Barrier reef strata are documented in six measured sections from southern Trutch and Halfway River map areas, Rocky Mountain Thrust Belt, northeastern British Columbia. They contain
abundantly stromatoporoidal strata as young as mid-Givetian. Presqu'ile Dolomite is commonly developed in large masses within thick 'Upper Chinchaga to Slave Point Undivided' limestone successions in outcrop. Less extensive, white, hydrothermal
dolospar is developed within relatively thin Dunedin Formation strata, particularly in slope settings immediately basinward of the Presqu'ile Barrier reef complex. Manetoe Dolomite occurs within Dunedin strata, even in northernmost sections. The
Dunedin Formation's basal unconformity and its diachronous and gradational upper contact with the Besa River Formation are confirmed and documented. Lower to Middle Devonian siliciclastic units occur within the Laurier Embayment, a broad bypass
channel through the Presqu'ile Barrier reef complex. Extensive Presqu'ile Dolomite occurs south of Laurier Embayment, similar to that in the nearby Clarke Lake gas field. |
| Summary | (Plain Language Summary, not published)
This bulletin presents detailed descriptions and measured thicknesses for a suite of 79 stratigraphic sections ranging in age from the Late Precambrian
to the Devonian, distributed across northern British Columbia and adjacent Yukon. These descriptions permit interpretations of regional trends in the distribution of shallow water vs deeper water successions through early Paleozoic time. This
extensive data compilation underpins syntheses, presented here and in external publications, of the changes to the form and depth of western Canada's Paleozoic marginal seas and their implications for regional hydrocarbon potential. |
| GEOSCAN ID | 299868 |
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