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Westgate Formation

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Journal Article

High resolution sequence stratigraphic architecture of a transgressive coastal succession: Albian Bow Island Formation, southwestern Alberta Available to Purchase

Per Kent Pedersen, Claudia J. Schröder-Adams, Olga Nielsen
Published: 01 December 2002
Bulletin of Canadian Petroleum Geology (2002) 50 (4): 441–477.
DOI: https://doi.org/10.2113/50.4.441
..., estuarine, shoreface, and shelf deposits of the upper member of the Bow Island Formation and marine shales of the Westgate Formation represent the transgressive systems tract of the younger low-order sequence. Within the transgressive succession of the upper member of the Bow Island Formation and Westgate...
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View PDF for article title, High resolution sequence stratigraphic architecture of a transgressive coastal succession: Albian Bow Island <span class="search-highlight">Formation</span>, southwestern Alberta
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Journal Article

Revised stratigraphy of the lower Colorado Group (Albian to Turonian), Western Canada Available to Purchase

J. Bloch, C. Schröder-Adams, D.A. Leckie, D.J. McIntyre, J. Craig, M. Staniland
Published: 01 September 1993
Bulletin of Canadian Petroleum Geology (1993) 41 (3): 325–348.
DOI: https://doi.org/10.35767/gscpgbull.41.3.325
... are present in this marine shale succession. In ascending order, these are: the Westgate Formation, the Fish Scales Formation, the Belle Fourche Formation and the Second White Specks Formation. The Westgate Formation is a laminated-to-bioturbated, heterolithic mudstone to siltstone which thickens from 20 m...
View PDF for article title, Revised stratigraphy of the lower Colorado Group (Albian to Turonian), Western Canada
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Journal Article

The effect of paleotopography on the late Albian and Cenomanian sea-level record of the Canadian Cretaceous interior seaway Available to Purchase

Dale A. Leckie, Claudia J. Schröder-Adams, John Bloch
Journal: GSA Bulletin
Published: 01 August 2000
GSA Bulletin (2000) 112 (8): 1179–1198.
DOI: https://doi.org/10.1130/0016-7606(2000)112<1179:TEOPOT>2.0.CO;2
... the underlying shale of the Westgate Formation (or Westgate Member) has been eroded or was never deposited. The regional paleogeographic setting for the Barons Sandstone and Fish Scales Formation indicates greater amounts of erosion and coarser-grained deposition in the southwest associated with the paleohigh...
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View PDF for article title, The effect of paleotopography on the late Albian and Cenomanian sea-level record of the Canadian Cretaceous interior seaway
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Journal Article

Detection of sedimentary cyclicity and stratigraphic completeness by wavelet analysis; an application to late Albian cyclostratigraphy of the Western Canada Sedimentary Basin Available to Purchase

Andreas Prokoph, Frederik P. Agterberg
Published: 01 July 1999
Journal of Sedimentary Research (1999) 69 (4): 862–875.
DOI: https://doi.org/10.2110/jsr.69.862
.... Cyclic units embedded in the upper Albian Westgate and Joli Fou formations are almost periodic with 11 and 10 repetitions, respectively. Accumulation rates at ot = 100 kyr vary from 5-7 cm/kyr in mudstone successions to 29 cm/kyr in sandstone successions of the Rocky Mountains Foothills. These 100 kyr...
View PDF for article title, Detection of sedimentary cyclicity and stratigraphic completeness by wavelet analysis; an application to late Albian cyclostratigraphy of the Western Canada Sedimentary Basin
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Journal Article

Correlation of physical surfaces, bentonites, and biozones in the Cretaceous Colorado Group from the Alberta Foothills to southwest Saskatchewan, and a revision of the Belle Fourche - Second White Specks formational boundary Available to Purchase

Aditya Tyagi, A. Guy Plint, David H. McNeil
Published: 31 July 2006
Canadian Journal of Earth Sciences (2007) 44 (7): 871–888.
DOI: https://doi.org/10.1139/e07-004
..., and for 350 km northward into the Dunvegan and Kaskapau formations. At Burnt Timber Creek, a Miliammina manitobensis microfauna in the lowest 1 m of the Sunkay Member indicates equivalence to the Westgate Formation, and an overlying 70 cm conglomerate is correlative with the Fish Scales Formation. Overlying...
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View PDF for article title, Correlation of physical surfaces, bentonites, and biozones in the Cretaceous Colorado Group from the Alberta Foothills to southwest Saskatchewan, and a revision of the Belle Fourche - Second White Specks <span class="search-highlight">formational</span> boundary
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Journal Article

Firmground Zoophycos in the Lower Cretaceous Viking Formation, Alberta: A Distal Expression of the Glossifungites Ichnofacies Available to Purchase

JAMES A. MACEACHERN, JAMES A. BURTON
Journal: PALAIOS
Published: 01 October 2000
PALAIOS (2000) 15 (5): 387–398.
DOI: https://doi.org/10.1669/0883-1351(2000)015<0387:FZITLC>2.0.CO;2
... in the accumulation of distal offshore and shelf mudstones of the late Albian Westgate Formation. Although excavation of BD4 occurred above fairweather wave base, its colonization occurred under much lower energy conditions. Within distal softground settings, ichnogenera capable of deeply penetrating muddy substrates...
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View PDF for article title, Firmground Zoophycos in the Lower Cretaceous Viking <span class="search-highlight">Formation</span>, Alberta: A Distal Expression of the Glossifungites Ichnofacies
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Journal Article

Emplacement and reworking of Cretaceous, diamond-bearing, crater facies kimberlite of central Saskatchewan, Canada Available to Purchase

Dale A. Leckie, B. A. Kjarsgaard, John Bloch, David McIntyre, David McNeil, Laverne Stasiuk, Larry Heaman
Journal: GSA Bulletin
Published: 01 August 1997
GSA Bulletin (1997) 109 (8): 1000–1020.
DOI: https://doi.org/10.1130/0016-7606(1997)109<1000:EAROCD>2.3.CO;2
... in the development of positive-relief tephra cones. Subsequent marine transgression associated with the Westgate Formation partially beveled the top of the cone. The kimberlite air-fall deposits contain microdiamonds, 5 to 25 μm in diameter. The maximum temperature and vitrinite reflectance values of coaly matter...
View PDF for article title, Emplacement and reworking of Cretaceous, diamond-bearing, crater facies kimberlite of central Saskatchewan, Canada
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Journal Article

DIAMOND-BEARING VOLCANICLASTIC KIMBERLITES IN CRETACEOUS MARINE SEDIMENTS, SASKATCHEWAN, CANADA Available to Purchase

P. H. Nixon, K. Leahy
Published: 01 January 1997
Russ. Geol. Geophys. (1997) 38 (1): 17–23.
... Corporation in 1988 [ 1 ]. This revealed a large number of kimberlite craters of upper Albian to lower Cenomanian age (ca. 100 Ma) [ 2 ]. The surface environment of kimberlite eruption is indicated by the stratigraphy of the enclosing widespread, transgressive Westgate Formation which was laid down...
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View PDF for article title, DIAMOND-BEARING VOLCANICLASTIC KIMBERLITES IN CRETACEOUS MARINE SEDIMENTS, SASKATCHEWAN, CANADA
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Northwest–southeast well log cross-section C (see Fig. 1 for location). Note the onlap of a log marker within the Westgate Formation on the irregular TS-5 surface, and the parallel nature of flooding surfaces within the lower and upper members of the Bow Island Formation and of log markers within the Westgate and Fish Scales formations. This supports the Base of the Fish Scales Formation as datum despite its truncation of Westgate log markers.

Northwest–southeast well log cross-section C (see Fig. 1 for location). No... Available to Purchase

Published: 01 December 2002
Fig. 16. Northwest–southeast well log cross-section C (see Fig. 1 for location). Note the onlap of a log marker within the Westgate Formation on the irregular TS-5 surface, and the parallel nature of flooding surfaces within the lower and upper members of the Bow Island Formation and of log
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Average distribution of foraminiferal morphogroups (percentage) in low-oxygen facies of the shallow-marine Viking/Westgate formations. See Online Supplemental File Figure S5 for detailed morphogroup data for low-oxygen Viking/Westgate samples.

Average distribution of foraminiferal morphogroups (percentage) in low-oxyg... Available to Purchase

Published: 23 June 2023
Fig. 12 Average distribution of foraminiferal morphogroups (percentage) in low-oxygen facies of the shallow-marine Viking/Westgate formations. See Online Supplemental File Figure S5 for detailed morphogroup data for low-oxygen Viking/Westgate samples.
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Figs. 1, 2.Gaudryina canadensis Cushman. (1) Side view, Fort Augustus from Westgate Formation 688.2–690.9 m (2258–2267 ft). ×95. (2) Side view, Fort Augustus from Joli Fou Formation 730.9–733.6 m (2398–2407 ft). ×140. Figs. 3–5.Gaudryina nanushukensis Tappan. (3) Opposite side views, Spirit River from Bluesky Formation 1158.5–1159.7 m (3801–3805 ft); fig. 3a, ×114; fig. 3b, ×109. (4) Side view, Spirit River from Wilrich Member 1069.5–1070.1 m (3509–3511 ft). ×116. (5) Side view, Spirit River from Falher Member 997.9–998.6 m (3274–3276.5 ft). ×142. Fig. 6.Gaudryina tailleuri (Tappan). Side view, Fort Augustus from Joli Fou Formation 738.8–741.5 m (2424–2433 ft). ×85. Figs. 7, 8, 10.Verneuilinoides borealis Tappan. (7) Opposite side views, Spirit River from Shaftesbury Formation 658.6–661.7 m (2161–2171 ft); fig. 7a, ×90; fig. 7b, ×92. (8) Opposite side views, Fort Augustus from Westgate Formation 663.5–666.3 m (2177–2186 ft); fig. 8a, ×117; fig. 8b, ×121. (10) Opposite side views, Fort Augustus from Westgate Formation 688.2–690.9 m (2258–2267 ft); fig. 10a, ×106; fig. 10b, ×105. Fig. 9.Uvigerinammina athabascensis Mellon and Wall. Side view, Spirit River from Wilrich Member 1092.0–1093.9 m (3583–3589 ft), ×125. Figs. 11–13.Gravellina chamneyi Stelck. (11) Opposite side views, Fort Augustus from Westgate Formation 688.2–690.9 m (2258–2267 ft); fig. 11a, ×136; fig. 11b, ×143. (12) Opposite side views, Spirit River from Shaftesbury Formation 667.8–671.1 m (2191–2202 ft); fig. 12a, ×152; fig. 12b, ×150. (13) Oblique side views, Fort Augustus from Westgate Formation 688.2–690.9 m (2258–2267 ft); fig. 13a, ×230; fig. 13b, ×220.

Figs.  1 , 2 . Gaudryina canadensis Cushman. (1) Side view, Fort Augustu... Available to Purchase

Published: 01 January 2000
Plate 5. Figs.  1 , 2 . Gaudryina canadensis Cushman. (1) Side view, Fort Augustus from Westgate Formation 688.2–690.9 m (2258–2267 ft). ×95. (2) Side view, Fort Augustus from Joli Fou Formation 730.9–733.6 m (2398–2407 ft). ×140. Figs.  3 – 5 . Gaudryina nanushukensis Tappan. (3) Opposite
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West–east well log cross-section D (see Fig. 1 for location). Vertical lines indicate cores presented in Figure 12. In the western region, note the differentiation of two generations of incised valleys of sequences 3 and 4. Note the incised valley lying from 6-1-9-23W4 to 4-33-8-22W4 within sequence 5. The thickness of the Westgate Formation significantly decreases toward the west. Note also the onlap of log markers within the Westgate Formation on TS-5.

West–east well log cross-section D (see Fig. 1 for location). Vertical lin... Available to Purchase

Published: 01 December 2002
within sequence 5. The thickness of the Westgate Formation significantly decreases toward the west. Note also the onlap of log markers within the Westgate Formation on TS-5.
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Distribution of trace fossils in facies of the Joli Fou, Viking, and Westgate formations (modified from MacEachern et al. 1999a) with ichnofacies and paleoenvironmental interpretations of trace fossils.

Distribution of trace fossils in facies of the Joli Fou, Viking, and Westga... Available to Purchase

Published: 23 June 2023
Fig. 3 Distribution of trace fossils in facies of the Joli Fou, Viking, and Westgate formations (modified from MacEachern et al. 1999a ) with ichnofacies and paleoenvironmental interpretations of trace fossils.
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Bar charts illustrating the distribution of foraminiferal morphogroups (percentage) in marine shelf facies of the Viking and Westgate formations, Alberta, Canada. See Table 1 for sample information.

Bar charts illustrating the distribution of foraminiferal morphogroups (per... Available to Purchase

Published: 23 June 2023
Fig. 9 Bar charts illustrating the distribution of foraminiferal morphogroups (percentage) in marine shelf facies of the Viking and Westgate formations, Alberta, Canada. See Table 1 for sample information.
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Average distribution of foraminiferal morphogroups (percentage) in six shallow-marine mudstone facies of the Viking and Westgate formations. See Online Supplemental File Figures S2–S4 for detailed morphogroup data from these samples.

Average distribution of foraminiferal morphogroups (percentage) in six shal... Available to Purchase

Published: 23 June 2023
Fig. 11 Average distribution of foraminiferal morphogroups (percentage) in six shallow-marine mudstone facies of the Viking and Westgate formations. See Online Supplemental File Figures S2–S4 for detailed morphogroup data from these samples.
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(A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales, Belle Fourche and Second White Specks (SWS) formations. Gamma ray log is shown on the left, the resistivity log on the right, and the lithologic column of core on the middle (if available). See location in Figure 1B. The Westgate Formation thins westwards and dies out near the southern Foothills. Allomember I of the Fish Scales Formation shows a regressive shoreline pattern. The top of Allomember II is truncated in southwestern Alberta. The Upper Belle Fourche Formation reflects continuous northeastward migration of the depocenter of the backbulge depozone. The Second White Specks Formation shows a westward thinning tendency. (E) Enlarged lithologic columns of cores in A–D.

(A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales... Available to Purchase

Published: 01 September 2008
Fig. 6. (A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales, Belle Fourche and Second White Specks (SWS) formations. Gamma ray log is shown on the left, the resistivity log on the right, and the lithologic column of core on the middle (if available). See location
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(A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales, Belle Fourche and Second White Specks (SWS) formations. Gamma ray log is shown on the left, the resistivity log on the right, and the lithologic column of core on the middle (if available). See location in Figure 1B. The Westgate Formation thins westwards and dies out near the southern Foothills. Allomember I of the Fish Scales Formation shows a regressive shoreline pattern. The top of Allomember II is truncated in southwestern Alberta. The Upper Belle Fourche Formation reflects continuous northeastward migration of the depocenter of the backbulge depozone. The Second White Specks Formation shows a westward thinning tendency. (E) Enlarged lithologic columns of cores in A–D.

(A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales... Available to Purchase

Published: 01 September 2008
Fig. 6. (A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales, Belle Fourche and Second White Specks (SWS) formations. Gamma ray log is shown on the left, the resistivity log on the right, and the lithologic column of core on the middle (if available). See location
Image
(A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales, Belle Fourche and Second White Specks (SWS) formations. Gamma ray log is shown on the left, the resistivity log on the right, and the lithologic column of core on the middle (if available). See location in Figure 1B. The Westgate Formation thins westwards and dies out near the southern Foothills. Allomember I of the Fish Scales Formation shows a regressive shoreline pattern. The top of Allomember II is truncated in southwestern Alberta. The Upper Belle Fourche Formation reflects continuous northeastward migration of the depocenter of the backbulge depozone. The Second White Specks Formation shows a westward thinning tendency. (E) Enlarged lithologic columns of cores in A–D.

(A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales... Available to Purchase

Published: 01 September 2008
Fig. 6. (A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales, Belle Fourche and Second White Specks (SWS) formations. Gamma ray log is shown on the left, the resistivity log on the right, and the lithologic column of core on the middle (if available). See location
Image
(A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales, Belle Fourche and Second White Specks (SWS) formations. Gamma ray log is shown on the left, the resistivity log on the right, and the lithologic column of core on the middle (if available). See location in Figure 1B. The Westgate Formation thins westwards and dies out near the southern Foothills. Allomember I of the Fish Scales Formation shows a regressive shoreline pattern. The top of Allomember II is truncated in southwestern Alberta. The Upper Belle Fourche Formation reflects continuous northeastward migration of the depocenter of the backbulge depozone. The Second White Specks Formation shows a westward thinning tendency. (E) Enlarged lithologic columns of cores in A–D.

(A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales... Available to Purchase

Published: 01 September 2008
Fig. 6. (A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales, Belle Fourche and Second White Specks (SWS) formations. Gamma ray log is shown on the left, the resistivity log on the right, and the lithologic column of core on the middle (if available). See location
Image
(A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales, Belle Fourche and Second White Specks (SWS) formations. Gamma ray log is shown on the left, the resistivity log on the right, and the lithologic column of core on the middle (if available). See location in Figure 1B. The Westgate Formation thins westwards and dies out near the southern Foothills. Allomember I of the Fish Scales Formation shows a regressive shoreline pattern. The top of Allomember II is truncated in southwestern Alberta. The Upper Belle Fourche Formation reflects continuous northeastward migration of the depocenter of the backbulge depozone. The Second White Specks Formation shows a westward thinning tendency. (E) Enlarged lithologic columns of cores in A–D.

(A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales... Available to Purchase

Published: 01 September 2008
Fig. 6. (A–D) Cross-sections in southern Alberta, showing the Westgate, Fish Scales, Belle Fourche and Second White Specks (SWS) formations. Gamma ray log is shown on the left, the resistivity log on the right, and the lithologic column of core on the middle (if available). See location