| Title | An exceptional record of the sedimentology and biostratigraphy of the Montney and Doig formations in British Columbia |
| Author | Golding, M L; Orchard, M J; Zonneveld, J -P; Henderson, C M; Dunn, L |
| Source | Bulletin of Canadian Petroleum Geology vol. 62, no. 3, 2014 p. 157-176, https://doi.org/10.2113/gscpgbull.62.3.157 |
| Year | 2014 |
| Alt Series | Earth Sciences Sector, Contribution Series 20140408 |
| Publisher | CSPG |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | British Columbia |
| NTS | 93I/09; 93I/13; 93I/14; 93I/15; 93I/16; 93O/01; 93O/08; 93O/09; 93O/10; 93O/15; 93O/16; 93P; 94A; 94B/01; 94B/07; 94B/08; 94B/09; 94B/10; 94B/11; 94B/14; 94B/15; 94B/16; 94G/01; 94G/02; 94G/03; 94G/06;
94G/07; 94G/08; 94G/09; 94G/10; 94G/11; 94G/14; 94G/15; 94G/16; 94H; 94I/01; 94I/02; 94I/03; 94I/04; 94I/05; 94I/06; 94I/07; 94J/01; 94J/02; 94J/03; 94J/06; 94J/07; 94J/08; 94J/11 |
| Area | Wonowon; Pink Mountain |
| Lat/Long WENS | -123.5000 -120.0000 58.7500 54.5000 |
| Subjects | sedimentology; paleontology; geochronology; biostratigraphy; siltstones; sandstones; carbonates; sedimentary facies; bioturbation; index fossils; systematic stratigraphy; Montney Formation; Doig
Formation |
| Illustrations | stratigraphic cross-sections; structural cross-sections; core logs; tables; photographs; paleontological drawings |
| |
| Program | Western Arctic Sverdrup Basin, GEM2: Geo-mapping for Energy and Minerals |
| Abstract | The Talisman Altares 16-17-083-25W6MM well in British Columbia penetrates the entirety of the Triassic Montney Formation and possesses core coverage of most of it, including the basal contact with the
underlying Permian Belloy Formation and its upper contact with the base of the Triassic Doig Formation. The Montney Formation in British Columbia is punctuated by several flooding surfaces and is bound top and bottom by two sequence boundaries: one
at the Belloy-Montney formation boundary and one at the Montney-Doig boundary. These two surfaces can be correlated throughout wells in British Columbia and into Alberta. Conodont data from British Columbia shows that the lower-middle Montney
boundary is Smithian in age, and the middle-upper Montney boundary approximates the Smithian-Spathian boundary. These age determinations are significantly younger than previous estimates for the equivalent boundaries in Alberta, underscoring the
inherent diachroneity of lower Mesozoic lithostratigraphic subdivisions in Western Canada. The Montney-Doig boundary occurs within the Spathian in this well, and is therefore older here than in other wells in northeastern British Columbia. It is also
older than previous estimates for the age of the boundary that have ranged from the Anisian to the Ladinian. |
| Summary | (Plain Language Summary, not published)
The Talisman Altares well in British Columbia penetrates the entirety of the Triassic Montney Formation, which is a valuable source of hydrocarbons.
Conodonts extracted from preserved core provide biostratigraphic ages for key levels within the formation that are significantly younger than previous estimates for the equivalent boundaries in Alberta, underscoring the inherent diachroneity of lower
Mesozoic lithostratigraphic subdivisions in Western Canada. |
| GEOSCAN ID | 295791 |
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