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Sunset Prairie Formation

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Journal Article

The Sunset Prairie Formation: designation of a new Middle Triassic formation between the Lower Triassic Montney Formation and Middle Triassic Doig Formation in the Western Canada Sedimentary Basin, northeast British Columbias Available to Purchase

Carolyn M. Furlong, Murray K. Gingras, Thomas F. Moslow, John-Paul Zonneveld
Published: 01 March 2018
Bulletin of Canadian Petroleum Geology (2018) 66 (1): 193–214.
... introduces a new formation, the Sunset Prairie Formation, for an interval of interbedded light grey, pervasively bioturbated sandstone and dark grey, minimally bioturbated to non-bioturbated siltstone, which sits stratigraphically between the Lower Triassic Montney Formation and the Middle Triassic Doig...
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View PDF for article title, The <span class="search-highlight">Sunset</span> <span class="search-highlight">Prairie</span> <span class="search-highlight">Formation</span>: designation of a new Middle Triassic <span class="search-highlight">formation</span> between the Lower Triassic Montney <span class="search-highlight">Formation</span> and Middle Triassic Doig <span class="search-highlight">Formation</span> in the Western Canada Sedimentary Basin, northeast British Columbias
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Add to Citation Manager for The <span class="search-highlight">Sunset</span> <span class="search-highlight">Prairie</span> <span class="search-highlight">Formation</span>: designation of a new Middle Triassic <span class="search-highlight">formation</span> between the Lower Triassic Montney <span class="search-highlight">Formation</span> and Middle Triassic Doig <span class="search-highlight">Formation</span> in the Western Canada Sedimentary Basin, northeast British Columbias
Journal Article

Sedimentology and ichnology of the Middle Triassic (Anisian) Sunset Prairie Formation of the Western Canada Sedimentary Basin Available to Purchase

Carolyn M. Furlong, Aimée Gegolick, Murray K. Gingras, Patricia González, Thomas F. Moslow, Donald Prenoslo, Tiffany Playter, John-Paul Zonneveld
Published: 01 March 2018
Bulletin of Canadian Petroleum Geology (2018) 66 (1): 215–236.
... as the Sunset Prairie Formation which occurs on a regional scale within eastern British Columbia. The interval is Middle Triassic in age and is characterized by interbedded light grey, pervasively bioturbated sandstone and dark grey, minimally bioturbated siltstone. Trace fossils present within the interval...
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View PDF for article title, Sedimentology and ichnology of the Middle Triassic (Anisian) <span class="search-highlight">Sunset</span> <span class="search-highlight">Prairie</span> <span class="search-highlight">Formation</span> of the Western Canada Sedimentary Basin
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Add to Citation Manager for Sedimentology and ichnology of the Middle Triassic (Anisian) <span class="search-highlight">Sunset</span> <span class="search-highlight">Prairie</span> <span class="search-highlight">Formation</span> of the Western Canada Sedimentary Basin
Image
Type core for the Sunset Prairie Formation, Shell Groundbirch 16-29-079-20W6M. Lithostratigraphy, lithology, interpreted depositional environments and interpreted sequence stratigraphy are identified for the interval. Well logs include gamma ray, spectral gamma (U = Uranium; K = Potassium; Th = Thorium), resistivity, density porosity (RHOB) (limestone matrix) and neutron porosity (NPHI) (limestone matric). Air permeability data and porosity data are identified for the interval. Air permeability data and porosity data were collected by Core Laboratories from small-diameter core plugs. Total Organic Carbon (TOC) and Rockview Mineralogy data were collected and interpreted from Flex logs by Backer Hughes.

Type core for the Sunset Prairie Formation, Shell Groundbirch 16-29-079-20W... Available to Purchase

Published: 01 March 2018
Figure 4. Type core for the Sunset Prairie Formation, Shell Groundbirch 16-29-079-20W6M. Lithostratigraphy, lithology, interpreted depositional environments and interpreted sequence stratigraphy are identified for the interval. Well logs include gamma ray, spectral gamma (U = Uranium; K
Image
Location and thickness map of the Sunset Prairie Formation west-central Alberta and northeast British Columbia. The isopach was constructed using vertical wells with wireline data, which were ground-truthed using full-diameter core penetrating the Sunset Prairie Formation. Well control is shown through the location of wells in the dataset and includes wire line (n = 216) and cored wells (n = 24). Cored wells are identified as follows: 1. a-82-I/94-G-01; 2. c-081-J/93-P-07; 3. d-66-I/94-B-16; 4. B-78-A/94-B-16; 5. a-18-D/94-A-13; 6. c-33-C/94-B-09; 7. d-48-A/04-B-09; 8. c-24-K/94-B-08; 9. c-07-J/94-B-08; 10.c-65-F/94-B-08; 11. 04-09-084-22W6M; 12. 16-17-083-25W6M; 13. 08-10-082-17W6M; 14. 05-03-082-18W6M; 15. 04-11-081-21W6M; 16. 13-11-081-20W6M; 17. 15-34-080-18W6M; 18. 16-29-079-20W6M; 19. 16-02-078-22W6M; 20. 12-29-078-18W6M; 21. 02-10-078-18W6M; 22. d-54-B/94-P-09; 23. c-81-J/93-P-07; 24. d-56-C/93-P-08. Wells with wire line that did not have preserved Sunset Prairie Formation (grey dots; n = 36) were used to determine erosional edge of the formation. The dashed line represents the estimated easternmost limit of where the Sunset Prairie Formation may be found. Thickness ranges from 0–80 m, with the thickest accumulation coincident with the Hudson Hope Low (sensuBarclay et al., 1990). Contour interval = 5 m.

Location and thickness map of the Sunset Prairie Formation west-central Alb... Available to Purchase

Published: 01 March 2018
Figure 8. Location and thickness map of the Sunset Prairie Formation west-central Alberta and northeast British Columbia. The isopach was constructed using vertical wells with wireline data, which were ground-truthed using full-diameter core penetrating the Sunset Prairie Formation. Well control
Image
Summary of facies present within the Sunset Prairie Formation. Bioturbation intensity, ichnofacies and interpreted depositional environment are identified for each facies. Scale bars for core photos = 3 cm. Schematic at bottom shows distribution of facies and depositional environments within a siliciclastic ramp setting. Abbreviations include: Pa = Palaeophycus, Ph = Phycosiphon, Pl = Planolites, Rh = Rhizocorallium, Ro = Rosselia, Sc = Scolicia, Sk = Skolithos, Te = Teichichnus and Th = Thalassinoides, Z = Zoophycos, BR = brachiopod shell and PN = phosphate nodule.

Summary of facies present within the Sunset Prairie Formation. Bioturbation... Available to Purchase

Published: 01 March 2018
Figure 9. Summary of facies present within the Sunset Prairie Formation. Bioturbation intensity, ichnofacies and interpreted depositional environment are identified for each facies. Scale bars for core photos = 3 cm. Schematic at bottom shows distribution of facies and depositional environments
Image
Gamma ray and resistivity cross-sections of the Sunset Prairie Formation. Cross-section A-A′ is located through the northern part of the study area, whereas cross-section B-B′ is located through the Fort St John Graben system and Hudson Hope Low. Both cross sections are oriented perpendicular to paleoshoreline. Cross section C-C′ is oriented parallel to the paleoshoreline. The Sunset Prairie Formation is shaded tan. Location of cross-sections are identified in Figure 8.

Gamma ray and resistivity cross-sections of the Sunset Prairie Formation. C... Available to Purchase

Published: 01 March 2018
Figure 10. Gamma ray and resistivity cross-sections of the Sunset Prairie Formation. Cross-section A-A′ is located through the northern part of the study area, whereas cross-section B-B′ is located through the Fort St John Graben system and Hudson Hope Low. Both cross sections are oriented
Image
Type core for the Sunset Prairie Formation, Shell Groundbirch 16-29-79-20W6M. Lithostratigraphy, lithology, interpreted depositional environments and interpreted sequence stratigraphy are identified for the interval. Well logs include gamma ray, spectral gamma (U = Uranium; K = Potassium; Th = Thorium), resistivity, density porosity (RHOB) (limestone matrix) and neutron porosity (NPHI) (limestone matric). Air permeability data and porosity data are identified for the interval. Air permeability data and porosity data were collected by Core Laboratories from small-diameter core plugs. Total Organic Carbon (TOC) and Rockview Mineralogy data were collected and interpreted from Flex logs by Backer Hughes.

Type core for the Sunset Prairie Formation, Shell Groundbirch 16-29-79-20W6... Available to Purchase

Published: 01 March 2018
Figure 2. Type core for the Sunset Prairie Formation, Shell Groundbirch 16-29-79-20W6M. Lithostratigraphy, lithology, interpreted depositional environments and interpreted sequence stratigraphy are identified for the interval. Well logs include gamma ray, spectral gamma (U = Uranium; K
Image
Location and thickness map of the Sunset Prairie Formation west-central Alberta and northeast British Columbia. The isopach was constructed using vertical wells with wireline data, which were ground-truthed using full-diameter core penetrating the Sunset Prairie Formation. Well control is shown through the location of wells in the data set and includes wire line (n=216) and cored wells (n = 24). Cored wells are identified as follows: 1. a-82-I/94-G-01; 2. c-081-J/93-P-07; 3. d-66-I/94-B-16; 4. B-78-A/94-B-16; 5. a-18-D/94-A-13; 6. c-33-C/94-B-09; 7. d-48-A/04-B-09; 8. c-24-K/94-B-08; 9. c-07-J/94-B-08; 10. c-65-F/94-B-08; 11. 04-09-084-22W6M; 12. 16-17-083-25W6M; 13. 08-10-082-17W6M; 14. 05-03-082-18W6M; 15. 04-11-081-21W6M; 16. 13-11-081-20W6M; 17. 15-34-080-18W6M; 18. 16-29-079-20W6M; 19. 16-02-078-22W6M; 20. 12-29-078-18W6M; 21. 02-10-078-18W6M; 22. d-54-B/94-P-09; 23. c-81-J/93-P-07; 24. d-56-C/93-P-08. Wells with wire line that did not have preserved Sunset Prairie Formation (grey dots; n = 36) were used to determine erosional edge of the formation. The dashed line represents the estimated easternmost limit of where the Sunset Prairie Formation may be found. Thickness ranges from 0-80 m, with the thickest accumulation coincident with the Hudson Hope Low (sensuBarclay et al., 1990). Major structural features that influence Lower and Middle Triassic strata are identified and were compiled from previously published maps (Barclay et al., 1990; Davies, 1997a, 1997b; Davies et al., 1997; Berger, 2005; Berger et al., 2009). Isopach contour interval = 5 m.

Location and thickness map of the Sunset Prairie Formation west-central Alb... Available to Purchase

Published: 01 March 2018
Figure 3. Location and thickness map of the Sunset Prairie Formation west-central Alberta and northeast British Columbia. The isopach was constructed using vertical wells with wireline data, which were ground-truthed using full-diameter core penetrating the Sunset Prairie Formation. Well control
Image
Summary of facies present within the Sunset Prairie Formation. Bioturbation intensity, ichnofacies and interpreted depositional environment are identified for each facies. Scale bars for core photos = 3 cm. Schematic at bottom shows distribution of facies and depositional environments within a siliciclastic ramp setting. Abbreviations include: Cy = Cylindrichnus, Pa = Palaeophycus, Ph = Phycosiphon, Pl = Planolites, Rh = Rhizocorallium, Ro = Rosselia, Sk = Skolithos, Te = Teichichnus and Th = Thalassinoides, Z = Zoophycos, BR = brachiopod shell and PN = phosphate nodule.

Summary of facies present within the Sunset Prairie Formation. Bioturbation... Available to Purchase

Published: 01 March 2018
Figure 4. Summary of facies present within the Sunset Prairie Formation. Bioturbation intensity, ichnofacies and interpreted depositional environment are identified for each facies. Scale bars for core photos = 3 cm. Schematic at bottom shows distribution of facies and depositional environments
Image
Core photographs of Facies 1 and Facies 2 from the Sunset Prairie Formation. All scale bars are 3cm in length. All depths represent core depths. A. Facies 1, medium grey fine-grained siltstone with fuzzy planar laminae due to bioturbation (well 16-29-079-20W6M; 2617.9 m). B. Same as A (well c-65-F/94-B-08; 2082.7 m). C. Facies 1 with pyrite rich horizon (well 16-29-079-20W6M; 2199.72 m). D. Facies 1, medium to light grey fine-grained siltstone with calcispheres (well 16-02-078-22W6M; 3077.4 m). E-F. Facies 1, medium grey fine siltstone rich in phosphate (E. well 16-02-078-22W6M; 2077.4 m; F. well 16-29-079-20W6M; 2613.7 m). G. Facies 1, fine-grained siltstone with phosphate nodules (PN) (well 16-29-079-20W6M; 2619.5 m). H. Facies 1, fine-grained phosphatically rich siltstone with phosphate nodules and phosphate rich laminae (well c-65F/94-B-08; 2298.8 m). I. Facies 2, fine- to coarse-grained siltstone with planar to wavy laminae (well 16-02-078-22W6M; 3078.0 m). J. Facies 2 with pinstripe and penecontemporaneous deformation structures (arrow) (well c-33-C/94-B-09; 2199.5 m). K-L. Facies 2 with diminutive bioturbation (K. well c-33-C/94-B-09; 2193.5 m; L. well 16-02-078-22W6M; 3065.0 m). Trace fossils include Ch = Chondrites, He = Helminthopsis, Pa = Palaeophycus, Ph = Phycosiphon, and Pl = Planolites.

Core photographs of Facies 1 and Facies 2 from the Sunset Prairie Formation... Available to Purchase

Published: 01 March 2018
Figure 6. Core photographs of Facies 1 and Facies 2 from the Sunset Prairie Formation. All scale bars are 3cm in length. All depths represent core depths. A. Facies 1, medium grey fine-grained siltstone with fuzzy planar laminae due to bioturbation (well 16-29-079-20W6M; 2617.9 m). B. Same
Image
Core photographs of Facies 3 and Facies 4 from the Sunset Prairie Formation. All scale bars are 3 cm in length unless otherwise denoted. All depths represent core depths. A. Facies 3, pervasively burrowed base separating Facies 3 from Facies 1 (well 16-02-078-22W6M; 3096.4 m). B. Facies 3, pervasively bioturbated fine-grained siltstone (well c-33-C/94-B-09, 2200.3 m). C. Facies 3, dark grey, pervasively bioturbated fine-grained, phosphatic-rich siltstone (well 16-29-079-20W6M; 2629.2 m). D. Same as C (well c-65-F/94-B-08; 2202.70 m). E. Facies 3 with phosphate nodules (PN) (well 2-10-078-18W6M; 2554.7 m). F. Facies 4, thin bed of highly bioturbated siltstone, scale bar = 2 cm (well 16-02-078-22W6M; 3067.4 m). G. Facies 4, pervasively bioturbated, medium grey siltstone with sharp contact between bioturbated and non-bioturbated zones (well 16-02-078-22W6M; 3067.9 m). H. Facies 4, robust Phycosiphon, brachiopod shell (BR) present (well 16-02-078-22W6M; 3094.0 m). I. Same as H, scale bar = 2cm (well 16-02-078-22W6M; 3092.2 m). J. Same as H (well 16-02-078-22W6M; 2086.5 m). Trace fossils include Ch = Chondrites, He = Helminthopsis, Pa = Palaeophycus, Ph = Phycosiphon, Pl = Planolites, Te = Teichichnus, and Z = Zoophycos.

Core photographs of Facies 3 and Facies 4 from the Sunset Prairie Formation... Available to Purchase

Published: 01 March 2018
Figure 7. Core photographs of Facies 3 and Facies 4 from the Sunset Prairie Formation. All scale bars are 3 cm in length unless otherwise denoted. All depths represent core depths. A. Facies 3, pervasively burrowed base separating Facies 3 from Facies 1 (well 16-02-078-22W6M; 3096.4 m). B. Facies
Image
Core photographs of Facies 5 from the Sunset Prairie Formation. All scale bars are 3 cm in length. All depths represent core depths. A-D. Pervasively bioturbated sandy siltstone with robust trace fossils (A. well 16-29-079-20W6M; 2615.7 m; B. well c-33-C/94-B-09; 2187.6 m; C. well c-33-C/94-B-9; 2195.2 m; D. well c-33-C/94-B-09; 2195.9 m). E-G. Pervasively bioturbated sandy siltstone with robust trace fossils and phosphate nodules (PN). (E. well c-33-C/94-B-09; 2188.9 m; F. well 16-02-078-22W6M; 3035.3 m; G. 16-29-079-20W6M; 2621.9 m). H. Pervasively bioturbated, phosphatic-rich, sandy siltstone with robust trace fossils (well c-65-F/94-B-08; 2194.7 m). I. Facies 5 grading into Facies 1 overlain by a Glossifungites Ichnofacies (Facies 6) and Facies 5. Note the salt-and-pepper appearance of the dense Phycosiphon fabric at the base and top of the image (well 08-10-082-17W6M; 1826.4 m). J. Facies 5 overlain by Facies 1, note the sharp contact between the two facies (well c-65-F/94-B-08; 2195.18 m). Trace fossils include As = Asterosoma, Cy = Cylindrichnus, Pa = Palaeophycus, Ph = Phycosiphon, Pl = Planolites and Ro = Rosselia.

Core photographs of Facies 5 from the Sunset Prairie Formation. All scale b... Available to Purchase

Published: 01 March 2018
Figure 8. Core photographs of Facies 5 from the Sunset Prairie Formation. All scale bars are 3 cm in length. All depths represent core depths. A-D. Pervasively bioturbated sandy siltstone with robust trace fossils (A. well 16-29-079-20W6M; 2615.7 m; B. well c-33-C/94-B-09; 2187.6 m; C. well c-33
Image
Core photographs of Facies 6 and 7 from the Sunset Prairie Formation. All scale bars are 3cm in length. All depths represent core depths. A. Facies 6, Glossifungites-demarcated discontinuity surface (well 16-29-079-20W6M; 2622.1 m). B. Facies 6, Glossifungites-demarcated discontinuity surface located at the base of the Sunset Prairie Formation (well c-33-C/94-B-09; 2200.6 m). C-D. Facies 6, Glossifungites-demarcated discontinuity surface (C. well 16-29-079-20W6M; 2627.1 m; D. well 16-17-083-25W6M; 2256.9 m). E. Facies 5 grading into Facies 1 overlain by a Glossifungites Ichnofacies and Facies 5 (well 15-34-080-18W6M; 2065.5 m). F. Facies 7, phosphate nodules (PN) and shell debris (well c-33-C/94-B-09; 2197.9 m). G. Facies 7, phosphate nodules (PN) (well 16-17-083-25W6M; 2255.8 m). H. Facies 7, capping phosphatically rich sand and ooids (well 16-02-078-22W6M; 3055.5 m). I. Facies 7, phosphate nodules within Facies 1 (well 16-02-078-22W6M; 3055.9 m). J-K. Contact between the Sunset Prairie Formation and the overlying Doig phosphate zone; the contact is denoted with an arrow (J. well 16-17-083-25W6M; 2245.3 m K. well c-33-C/94-B-09; 2186.5 m). Trace fossils include Cy = Cylindrichnus, Pa = Palaeophycus, Ph = Phycosiphon, Pl = Planolites, Rh = Rhizocorallium, Sc = Scolicia, Sk = Skolithos, Te = Teichichnus and Th = Thalassinoides.

Core photographs of Facies 6 and 7 from the Sunset Prairie Formation. All s... Available to Purchase

Published: 01 March 2018
Figure 9. Core photographs of Facies 6 and 7 from the Sunset Prairie Formation. All scale bars are 3cm in length. All depths represent core depths. A. Facies 6, Glossifungites-demarcated discontinuity surface (well 16-29-079-20W6M; 2622.1 m). B. Facies 6, Glossifungites-demarcated
Image
Gamma ray and resistivity cross-sections of the Sunset Prairie Formation. Cross-section A-A′ is located through the northern part of the study area, whereas cross-section B-B′ is located through the Fort St John Graben system and Hudson Hope Low. Both cross-sections are oriented perpendicular to paleoshoreline. Cross-section C-C′ is oriented parallel to the paleoshoreline. The Sunset Prairie Formation is shaded tan. Location of cross-sections are identified in Figure 3.

Gamma ray and resistivity cross-sections of the Sunset Prairie Formation. C... Available to Purchase

Published: 01 March 2018
Figure 10. Gamma ray and resistivity cross-sections of the Sunset Prairie Formation. Cross-section A-A′ is located through the northern part of the study area, whereas cross-section B-B′ is located through the Fort St John Graben system and Hudson Hope Low. Both cross-sections are oriented
Image
Stratigraphic column for the Montney and Sunset Prairie Formations, outlining the four third-order sequences and their associated higher-order parasequences within the project area.

Stratigraphic column for the Montney and Sunset Prairie Formations, outlini... Available to Purchase

Published: 01 February 2023
Figure 4. Stratigraphic column for the Montney and Sunset Prairie Formations, outlining the four third-order sequences and their associated higher-order parasequences within the project area.
Journal Article

Sequence stratigraphic architecture of the Lower Triassic Montney Formation, northeastern British Columbia, Canada Available to Purchase

Greg M. Baniak, Thomas F. Moslow, Stavros Michailides, Matthew G. Adams
Journal: AAPG Bulletin
Published: 01 February 2023
AAPG Bulletin (2023) 107 (2): 283–310.
DOI: https://doi.org/10.1306/10252221113
...Figure 4. Stratigraphic column for the Montney and Sunset Prairie Formations, outlining the four third-order sequences and their associated higher-order parasequences within the project area. ...
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View PDF for article title, Sequence stratigraphic architecture of the Lower Triassic Montney <span class="search-highlight">Formation</span>, northeastern British Columbia, Canada
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3D stratigraphic architecture, sedimentary budget, and sources of the Lower and Middle Triassic strata of western Canada: evidence for a major basin structural reorganization Available to Purchase

Vincent Crombez, Sébastien Rohais, François Baudin, Tristan Euzen, John-Paul Zonneveld, Matthew Power
Published: 06 January 2020
Petroleum Geoscience (2020) 26 (3): 462–479.
DOI: https://doi.org/10.1144/petgeo2019-024
...Vincent Crombez; Sébastien Rohais; François Baudin; Tristan Euzen; John-Paul Zonneveld; Matthew Power Abstract This study focuses on the Lower–Middle Triassic Montney, Sunset Prairie, Doig and Halfway formations from the foreland basin of the Canadian Cordillera (Alberta and British Columbia...
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View PDF for article title, 3D stratigraphic architecture, sedimentary budget, and sources of the Lower and Middle Triassic strata of western Canada: evidence for a major basin structural reorganization
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Synthetic stratigraphic framework of the Lower and Middle Triassic formations. Four depositional sequences with their internal surfaces are highlighted with different colours. Note that reaching this vertical resolution is only possible using well data; onshore seismic data do not present such details. SP, Sunset Prairie Formation.

Synthetic stratigraphic framework of the Lower and Middle Triassic formatio... Available to Purchase

Published: 06 January 2020
such details. SP, Sunset Prairie Formation.
Image
Type well (Texaco NFA Buick Creek 06-26-087-21W6M) for the Montney and Doig Formations identified by Armitage (1962). Doig phosphate zone (DPZ) also identified. Well depth in metres. It is important to note that the Sunset Prairie Formation is not present within the type well.

Type well (Texaco NFA Buick Creek 06-26-087-21W6M) for the Montney and Doig... Available to Purchase

Published: 01 March 2018
Figure 2. Type well (Texaco NFA Buick Creek 06-26-087-21W6M) for the Montney and Doig Formations identified by Armitage (1962) . Doig phosphate zone (DPZ) also identified. Well depth in metres. It is important to note that the Sunset Prairie Formation is not present within the type well.
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Results of the QEMSCAN analyses. (a) Ternary diagram of the quartz–feldspar–mica (Q–F–M), carbonates and clay content in the samples. (b) Quartz v. carbonates cross-plot of the analysed samples. Note the two different trends between cycles A and B (approximating to the Montney and Sunset Prairie formations, and Doig and Halfway formations).

Results of the QEMSCAN analyses. ( a ) Ternary diagram of the quartz–feldsp... Available to Purchase

Published: 06 January 2020
and Sunset Prairie formations, and Doig and Halfway formations).