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Cadotte Formation

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Journal Article

Allostratigraphy and paleogeography of the Harmon and Cadotte members of the Peace River Formation (Middle Albian), west-central Alberta and adjacent British Columbia Available to Purchase

Olivia A. Henderson, Kathleen M. Vannelli, A. Guy Plint
Published: 01 September 2014
Bulletin of Canadian Petroleum Geology (2014) 62 (3): 177–212.
DOI: https://doi.org/10.2113/gscpgbull.62.3.177
...Olivia A. Henderson; Kathleen M. Vannelli; A. Guy Plint Abstract The mudstone-dominated Harmon and sandstone-dominated Cadotte members of the Peace River Formation were deposited during the middle Albian in the southern end of a Boreal marine embayment that occupied the foredeep of the Western...
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View PDF for article title, Allostratigraphy and paleogeography of the Harmon and <span class="search-highlight">Cadotte</span> members of the Peace River <span class="search-highlight">Formation</span> (Middle Albian), west-central Alberta and adjacent British Columbia
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Image
Paleogeographic map of North America in the Middle Albian, showing the southward incursion of the Boreal Sea, in which the Harmon and Cadotte formations were deposited (modified after Williams and Stelck, 1975).

Paleogeographic map of North America in the Middle Albian, showing the sout... Available to Purchase

Published: 01 September 2014
Figure 1 Paleogeographic map of North America in the Middle Albian, showing the southward incursion of the Boreal Sea, in which the Harmon and Cadotte formations were deposited (modified after Williams and Stelck, 1975 ).
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Compressional-wave velocity log used for generating synthetic seismograms. The blue curve represents the recorded data, and the red curve the data used for generating synthetic seismograms. The actual location of the Cadotte Formation is shown on the inset.

Compressional-wave velocity log used for generating synthetic seismograms. ... Available to Purchase

Published: 01 September 2007
Figure 5. Compressional-wave velocity log used for generating synthetic seismograms. The blue curve represents the recorded data, and the red curve the data used for generating synthetic seismograms. The actual location of the Cadotte Formation is shown on the inset.
Image
Composite section illustrating relations of the Paddy Member of the Peace River Formation and its interpretation (modified from Leckie and Singh 1991). Note the emergent nature that led to the deposition and incision of the Cadotte Formation followed by the resubmergence and filling of the incised channels by estuarine and shallow marine sediments. The Walton Creek, Viking, and Bow Island formations in Canada, as well as the Muddy and Newcastle sandstones in the United States, have similar stratigraphic units and relations.

Composite section illustrating relations of the Paddy Member of the Peace R... Available to Purchase

Published: 27 September 2022
Fig. 13. Composite section illustrating relations of the Paddy Member of the Peace River Formation and its interpretation (modified from Leckie and Singh 1991 ). Note the emergent nature that led to the deposition and incision of the Cadotte Formation followed by the resubmergence and filling
Journal Article

Anomalous reflection amplitudes from fractured reservoirs—Failure of AVOA? Available to Purchase

Mrinal K. Sen, F. David Lane, Douglas J. Foster
Journal: The Leading Edge
Published: 01 September 2007
The Leading Edge (2007) 26 (9): 1148–1152.
DOI: https://doi.org/10.1190/1.2780785
...Figure 5. Compressional-wave velocity log used for generating synthetic seismograms. The blue curve represents the recorded data, and the red curve the data used for generating synthetic seismograms. The actual location of the Cadotte Formation is shown on the inset. ...
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View PDF for article title, Anomalous reflection amplitudes from fractured reservoirs—Failure of AVOA?
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—Raman spectra of methane in quartz druse inclusions. (a) One-phase inclusion, Cadotte Formation sample 324 10–7–68–13W6. (b) Two-phase inclusion, spectra on vapor phase, Falher sample 394b 7–23–69–13W6. (c) Two-phase inclusion spectra on vapor phase, Falher sample 394b 7–23–69-13W6. Spectra were recorded with 514.5 nm excitation under following conditions: (a) 40X objective, 100 cm−1/min for 22 scans, 500 mw, slit size 500 μm; (b) 80X objective, 100 cm−1/min for 32 scans, 400 mw, slit size 600 μm; (c) 80X objective, 100 cm−1/min for 32 scans, 600 mw, slit size 700 μm.

—Raman spectra of methane in quartz druse inclusions. (a) One-phase inclusi... Available to Purchase

Published: 01 October 1989
Figure 9 —Raman spectra of methane in quartz druse inclusions. (a) One-phase inclusion, Cadotte Formation sample 324 10–7–68–13W6. (b) Two-phase inclusion, spectra on vapor phase, Falher sample 394b 7–23–69–13W6. (c) Two-phase inclusion spectra on vapor phase, Falher sample 394b 7–23–69-13W6
Journal Article

Nearshore articulate crinoid from the Albian of Alberta, Canada (Early Cretaceous, Echinodermata) Available to Purchase

William I. Ausich, Robin A. Buckley, A. Guy Plint
Published: 21 April 2011
Canadian Journal of Earth Sciences (2011) 48 (4): 719–727.
DOI: https://doi.org/10.1139/e10-094
... of the Peace River Formation record transgression, whereas sandstones of the Cadotte Member of the Peace River Formation record shoreline regression to the north. Abundant hummocky and swaley lamination in the Cadotte sandstone attest to the influence of storms on a shallow shelf. The Cadotte sandstone...
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View PDF for article title, Nearshore articulate crinoid from the Albian of Alberta, Canada (Early Cretaceous, Echinodermata)
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Journal Article

Regional maps of the Albian Peace River and lower Shaftesbury formations on the Peace River Arch, northwestern Alberta and northeastern British Columbia Available to Purchase

Dale A. Leckie, Michael R. Staniland, Brad J. Hayes
Published: 01 December 1990
Bulletin of Canadian Petroleum Geology (1990) 38A (1): 176–189.
DOI: https://doi.org/10.35767/gscpgbull.38a.1.176
... and conglomerates of the Cadotte Member and heterolithic coastal plain and tidally influenced strata of the Paddy Mem- ber (Fig. 2). In the Rocky Mountain Foothills, correlative units are marine shale of the Hulcross Formation and coastal to floodplain sediment of the Boulder Creek Formation (Fig. 2). Geological...
View PDF for article title, Regional maps of the Albian Peace River and lower Shaftesbury <span class="search-highlight">formations</span> on the Peace River Arch, northwestern Alberta and northeastern British Columbia
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—Resistivity of Cadotte sand with formation tests and productive fields.

—Resistivity of Cadotte sand with formation tests and productive fields. Available to Purchase

Published: 01 February 1979
FIG. 9. —Resistivity of Cadotte sand with formation tests and productive fields.
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—Bcf per section map of Cadotte sand with formation tests.

—Bcf per section map of Cadotte sand with formation tests. Available to Purchase

Published: 01 February 1979
FIG. 17. —Bcf per section map of Cadotte sand with formation tests.
Journal Article

Allostratigraphy of the Peace River Formation (Albian) in north-western Alberta and adjacent British Columbia Available to Purchase

Robin A. Buckley, A. Guy Plint
Published: 01 December 2013
Bulletin of Canadian Petroleum Geology (2013) 61 (4): 295–330.
DOI: https://doi.org/10.2113/gscpgbull.61.4.295
... dans le grès de l’allomembre CC avec d’abondants conglomérats à cailloux. Vers le nord, du grès latéral apparaît dans le faciès hétérolithique, ce qui indique un contexte extracôtier. Composée d’un grand nombre de faciès, l’alloformation de Paddy repose en discordance sur la Formation de Cadotte avec...
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View PDF for article title, Allostratigraphy of the Peace River <span class="search-highlight">Formation</span> (Albian) in north-western Alberta and adjacent British Columbia
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Journal Article

Estuarine deposits of the Albian Paddy Member (Peace River Formation) and lowermost Shaftesbury Formation, Alberta, Canada Available to Purchase

Dale A. Leckie, Chaitanya Singh
Published: 01 September 1991
Journal of Sedimentary Research (1991) 61 (5): 825–849.
DOI: https://doi.org/10.1306/D42677DF-2B26-11D7-8648000102C1865D
...Dale A. Leckie; Chaitanya Singh Abstract Outcrop exposures of the Peace River Formation in northwestern Alberta contain evidence of significant relative sea-level fluctuations that occurred during the middle to late Albian. These include Paddy Member channels that incised into the Cadotte Member...
View PDF for article title, Estuarine deposits of the Albian Paddy Member (Peace River <span class="search-highlight">Formation</span>) and lowermost Shaftesbury <span class="search-highlight">Formation</span>, Alberta, Canada
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Image
Log ensemble from well 9-17-61-9. The Cadotte interval is characterized by a decrease in compressional- and shear-slowness, and density from the overlying Paddy Formation. FMS images indicate the Cadotte interval contains a relatively high density of fractures in this well.

Log ensemble from well 9-17-61-9. The Cadotte interval is characterized by ... Available to Purchase

Published: 01 September 2007
Figure 3. Log ensemble from well 9-17-61-9. The Cadotte interval is characterized by a decrease in compressional- and shear-slowness, and density from the overlying Paddy Formation. FMS images indicate the Cadotte interval contains a relatively high density of fractures in this well.
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Fig. 1.

Main map shows the location of the study area in Alberta and British Columb... Available to Purchase

Published: 21 April 2011
Fig. 1. Main map shows the location of the study area in Alberta and British Columbia. The stippled area represents the extent of the shoreface sandstone of the Cadotte Member of the Peace River Formation. The position of the southern margin of the Cadotte sandstone is based on cross-sections
Image
Offshore facies of the Peace River Formation exposed on the Peace River. A. Overview of Peace River site 7 (Fig. 3A), showing Harmon, Cadotte and Paddy alloformations; note that the Harmon alloformation is only approximately 5 m thick here (compare with Figure 17). Principal allostratigraphic bounding surfaces are indicated. This section is located 30 km seaward of the nearshore-offshore transition. Both the Cadotte and Paddy alloformations are here composed of cm- to dm-scale, very fine-grained, ripple cross-laminated and HCS sandstone, interbedded with silty claystone. B. Cadotte and Paddy alloformations exposed at Peace River site 6, located 10 km north of the nearshore-offshore transition; contrast with Figure 15. C. Detail of heterolithic facies typical of the offshore portion of the Cadotte alloformation (location shown by inset box in B). Very fine-grained sandstone beds contain combined-flow ripples, planar lamination and low-amplitude HCS. Scale bar = 20 cm.

Offshore facies of the Peace River Formation exposed on the Peace River. A.... Available to Purchase

Published: 01 December 2013
Figure 26 Offshore facies of the Peace River Formation exposed on the Peace River. A. Overview of Peace River site 7 ( Fig. 3A ), showing Harmon, Cadotte and Paddy alloformations; note that the Harmon alloformation is only approximately 5 m thick here (compare with Figure 17 ). Principal
Book Chapter

Lower Cretaceous of the Peace River Region Available to Purchase

Group(s)
Milner
... Abstract A study group of the Alberta Society of Petroleum Geologists proposed the following classification of Lower Cretaceous strata in the Peace River area of west-central Alberta: Fort St. John group Shaftesbury formation Peace River formation Paddy sandstone member Cadotte sandstone...
Abstract
View PDF for content titled, Lower Cretaceous of the Peace River Region
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Abstract A study group of the Alberta Society of Petroleum Geologists proposed the following classification of Lower Cretaceous strata in the Peace River area of west-central Alberta: Fort St. John group Shaftesbury formation Peace River formation Paddy sandstone member Cadotte sandstone member Harmon shale member Spirit River formation Notikewin sandstone member Falher member Wilrich member Bluesky formation Bullhead group The Shaftesbury formation is a dark marine shale. The Peace River formation contains fairly distinct units consisting of the Paddy continental sandstone containing some coaly beds, the Cadotte glauconitic marine sandstone, and the Harmon dark marine shale. The Spirit River formation is a variable succession of sandstones and shales grouped into the Notikewin sandstone, the Falher sandstones, shales, siltstones, and thin coals, some beds suggesting deltaic origin, and the Wilrich dark shales with interbedded sandstones. The Bluesky formation consists of glauconitic sandstone grading down to dark shale. The Bullhead group is a variable succession of conglomerates, sandstones, shales, and coals.

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Stratigraphic correlation chart for the Lynx prospect area. The objective interval for this study is the Cadotte member of the Lower Cretaceous Peace River Formation, Fort St. John Group. It rests conformably on interbedded-silts and shales of the Harmon member, and is unconformably overlain by other silts and shales of the Paddy member. The contact between the Paddy and Cadotte has been interpreted to be an erosional surface resulting from fluvial erosion and valley mass wasting (Leickie et al., 1990). The Paddy is conformably overlain by a thick shale succession belonging to the Shaftesbury Formation.

Stratigraphic correlation chart for the Lynx prospect area. The objective i... Available to Purchase

Published: 01 September 2007
Figure 1. Stratigraphic correlation chart for the Lynx prospect area. The objective interval for this study is the Cadotte member of the Lower Cretaceous Peace River Formation, Fort St. John Group. It rests conformably on interbedded-silts and shales of the Harmon member, and is unconformably
Journal Article

Provenance of the Lower Cretaceous Paddy Member (Peace River Formation), northwestern Alberta Available to Purchase

Richard S. Hyde, Dale A. Leckie
Published: 01 December 1994
Bulletin of Canadian Petroleum Geology (1994) 42 (4): 482–498.
DOI: https://doi.org/10.35767/gscpgbull.42.4.482
...Richard S. Hyde; Dale A. Leckie ABSTRACT Most natural gas reservoirs in the Albian Paddy Member (Peace River Formation) in northwestern Alberta produce from quartzarenite sandstone. The provenance of this quartzarenite has been enigmatic, especially considering that in the underlying Cadotte...
View PDF for article title, Provenance of the Lower Cretaceous Paddy Member (Peace River <span class="search-highlight">Formation</span>), northwestern Alberta
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Log cross-section line 3–3′ across central part of study area, linking outcrop sections at Gates Gully and Lynx Creek to nearby well logs. An outcrop gamma ray log for Gates Gully helps to support the correlation to nearby well logs; outcrop gamma ray data for the Lynx Creek section are given in Fig. 23. Note that in these two outcrop sections, both the Paddy and Cadotte alloformations are represented by heterolithic, offshore deposits, rather than by the sandstone-dominated facies that typify the classical lithostratigraphic expression of these units. In lithostratigraphic terms, the ‘offshore’ Paddy and Cadotte strata would be classified as Hasler Formation. In the east, between wells 14-7-82-9W6M and 6-19-82-6W6M, the line of section crosses the facies boundary between off- and onshore facies of the Paddy and Cadotte, with a marked increase in sandstone content towards the east and south.

Log cross-section line 3–3′ across central part of study area, linking outc... Available to Purchase

Published: 01 December 2013
, the ‘offshore’ Paddy and Cadotte strata would be classified as Hasler Formation. In the east, between wells 14-7-82-9W6M and 6-19-82-6W6M, the line of section crosses the facies boundary between off- and onshore facies of the Paddy and Cadotte, with a marked increase in sandstone content towards the east
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Strike cross-section D–D′ in Rge 7W6M correlated in the North to line 1–1′ of Buckley (2011). The Harmon alloformation is dominated by mudstone as far south as 10-21-66-7W6M, beyond which allomembers become increasingly sand-rich, suggesting proximity to a paleo-shoreline. The Cadotte alloformation has a very tabular geometry and is represented by clean sandstone facies throughout the section. The well logs are tentatively correlated, over approximately 48 km SSW, to an outcrop section on Joachim Creek, mapped as lithostratigraphic Gates Formation (Langenberg et al., 1987). At Joachim Creek, neither the Harmon or Cadotte alloformations are represented by their typical marine mudstone and sandstone facies. The top of the lithostratigraphic Gates Formation is capped by a gravel-veneered marine transgressive surface, overlain by dark, pyritic marine mudstone of the lithostratigraphic Shaftesbury Formation (see Figure 24 for a detailed stratigraphic log). Correlation to well logs suggests that the marine transgressive surface is VE4, overlain by marine mudstone of the Westgate alloformation. A sharp-based bioturbated muddy sandstone with a brackish-water molluscan fauna lies 23 m below VE4 and overlies terrestrial deposits; the contact is interpreted as PE0 (Fig. 24). A further 18 m below PE0 is an erosion surface with steep-walled scours, interpreted as CE0 (Fig. 25A). The overlying 18 m of terrestrial deposits are interpreted as the updip equivalent of the Cadotte marine sandstone to the north.

Strike cross-section D–D′ in Rge 7W6M correlated in the North to line 1–1′ ... Available to Purchase

Published: 01 September 2014
Creek, neither the Harmon or Cadotte alloformations are represented by their typical marine mudstone and sandstone facies. The top of the lithostratigraphic Gates Formation is capped by a gravel-veneered marine transgressive surface, overlain by dark, pyritic marine mudstone of the lithostratigraphic