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Journal Article

Saglek Basin in the Labrador Sea, east coast Canada; stratigraphy, structure and petroleum systems Available to Purchase

Christopher D. Jauer, Gordon N. Oakey, Graham Williams, J.B.W. Hans Wielens
Published: 01 December 2014
Bulletin of Canadian Petroleum Geology (2014) 62 (4): 232–260.
DOI: https://doi.org/10.2113/gscpgbull.62.4.232
...Christopher D. Jauer; Gordon N. Oakey; Graham Williams; J.B.W. Hans Wielens Abstract Saglek Basin is the more northerly of the two major sedimentary basins along the Labrador margin of the Canadian east coast in which exploration drilling was undertaken in the 1970s–early 1980s. Saglek Basin has...
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View PDF for article title, <span class="search-highlight">Saglek</span> <span class="search-highlight">Basin</span> in the Labrador Sea, east coast Canada; stratigraphy, structure and petroleum systems
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Bivalvia shell and shell fragment εNd data from Saglek Basin Rut H-11 (blue dots) with marine Sr-isotope age calibration from LOWESS version 5 (McArthur et al., 2012). εNd ranges for crustal provinces, seawater, and marine sediments are from Piepgras and Wasserburg (1987); Goldstein and Jacobsen (1988); Samson et al. (1991); Garzione et al. (1997); Stevenson et al. (2000); Jeandel et al. (2007); Filippova et al. (2017); and Casse et al. (2019). NHG—amplification of Northern Hemisphere glaciations, taken to be ca. 2.6 Ma. NADW—North Atlantic Deep Water. Circled numbers (1–4) convey hypothetical models for the termination of the Bell River: (1) progressive termination through piecewise capture of the Bell River catchment; (2) nonlinear termination through reorganization of North American rivers; (3) termination of the Bell River primarily driven by growth of the Laurentide ice sheet; or (4) slow termination of the Bell River after repeated expansions and contractions of the Laurentide ice sheet.

Bivalvia shell and shell fragment εNd data from Saglek Basin Rut H-11 (blue... Available to Purchase

Published: 20 April 2021
Figure 7. Bivalvia shell and shell fragment εNd data from Saglek Basin Rut H-11 (blue dots) with marine Sr-isotope age calibration from LOWESS version 5 ( McArthur et al., 2012 ). εNd ranges for crustal provinces, seawater, and marine sediments are from Piepgras and Wasserburg (1987
Image
Bathymetry (500 m contours), Saglek Basin outline in coloured shading and seismic data coverage. NAMOC is the North Atlantic Mid-Ocean Channel (Hesse, 1989). With the exception of data from TGS, all other seismic data shown are in the public domain from either the National Energy Board or the Canada Newfoundland Labrador Offshore Petroleum Board.

Bathymetry (500 m contours), Saglek Basin outline in coloured shading and s... Available to Purchase

Published: 01 December 2014
Figure 1 Bathymetry (500 m contours), Saglek Basin outline in coloured shading and seismic data coverage. NAMOC is the North Atlantic Mid-Ocean Channel ( Hesse, 1989 ). With the exception of data from TGS, all other seismic data shown are in the public domain from either the National Energy Board
Image
Filtered marine Bouguer anomaly over Saglek Basin. The Labrador Sea extinct spreading axis (black dashed line) coincides with the linear gravity low. The seafloor spreading magnetic lineations (black dotted lines) and fracture zones (solid black lines) are from Roest and Srivastava (1989). Boundary between continental and oceanic crust shown by COB. Also shown are selected bathymetric contours (white dotted lines) and the location of the Funck et al. (2007) NUGGET refraction line. Well locations (black dots) are numbered: 1) Gjoa G-37; 2) Raleigh N-18; 3) Hekja O-71; 4) Cabot G-91; 5) Rut H-11; 6) Gilbert F-53; 7) Karlsefni A-13; 8) Pothurst P-19; 9) Skolp E-07. The marine Bouguer correction was calculated by replacing the water column (1030 kg/m3) with crustal density rocks (2670 kg/m3) using a polynomial expansion algorithm (Nady, 1966) in which the water layer was simulated by millions of 3-D cubes. Each cube was 4 × 4 km square and 100 m thick. This correction eliminates the artificial gravity lows in the free-air anomaly field that are associated with deeply scoured shelf areas and the gravity highs associated with the shelf break bathymetry. A 100 km high-pass filter was applied to the marine Bouguer gravity to remove the large positive gravity anomaly over the deep ocean basins where the depths to the Moho are shallow.

Filtered marine Bouguer anomaly over Saglek Basin. The Labrador Sea extinct... Available to Purchase

Published: 01 December 2014
Figure 2 Filtered marine Bouguer anomaly over Saglek Basin. The Labrador Sea extinct spreading axis (black dashed line) coincides with the linear gravity low. The seafloor spreading magnetic lineations (black dotted lines) and fracture zones (solid black lines) are from Roest and Srivastava
Image
Regional north to south structural well cross-section of the Saglek Basin showing stratigraphic units, lithology, and geological ages. Distances between wells are indicated (not shown to scale). Adapted from Wielens and Williams (2009).

Regional north to south structural well cross-section of the Saglek Basin s... Available to Purchase

Published: 01 December 2014
Figure 5 Regional north to south structural well cross-section of the Saglek Basin showing stratigraphic units, lithology, and geological ages. Distances between wells are indicated (not shown to scale). Adapted from Wielens and Williams (2009) .
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Snorri J-90 gas discovery, just south of the Saglek Basin, showing excellent structural closure. Well panel insert showing gamma ray and sonic logs in time.

Snorri J-90 gas discovery, just south of the Saglek Basin, showing excellen... Available to Purchase

Published: 01 December 2014
Figure 11 Snorri J-90 gas discovery, just south of the Saglek Basin, showing excellent structural closure. Well panel insert showing gamma ray and sonic logs in time.
Image
The northern Saglek Basin floor was mapped to the top Eocene basalt, tied to the three wells there. The basin floor over the southern Saglek Basin was tied to the Precambrian top of the four wells that reached crystalline basement. The basin outline is shown by the red perimeter based on thickness and distinct basin edges.

The northern Saglek Basin floor was mapped to the top Eocene basalt, tied t... Available to Purchase

Published: 01 December 2014
Figure 12 The northern Saglek Basin floor was mapped to the top Eocene basalt, tied to the three wells there. The basin floor over the southern Saglek Basin was tied to the Precambrian top of the four wells that reached crystalline basement. The basin outline is shown by the red perimeter based
Journal Article

Ancestral trans–North American Bell River system recorded in late Oligocene to early Miocene sediments in the Labrador Sea and Canadian Great Plains Available to Purchase

Julia I. Corradino, Alex Pullen, Andrew L. Leier, David L. Barbeau, Jr., Howie D. Scher, Amy Weislogel, Austin Bruner, Dale A. Leckie, Lisel D. Currie
Journal: GSA Bulletin
Published: 20 April 2021
GSA Bulletin (2022) 134 (1-2): 130–144.
DOI: https://doi.org/10.1130/B35903.1
...Figure 7. Bivalvia shell and shell fragment εNd data from Saglek Basin Rut H-11 (blue dots) with marine Sr-isotope age calibration from LOWESS version 5 ( McArthur et al., 2012 ). εNd ranges for crustal provinces, seawater, and marine sediments are from Piepgras and Wasserburg (1987...
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View PDF for article title, Ancestral trans–North American Bell River system recorded in late Oligocene to early Miocene sediments in the Labrador Sea and Canadian Great Plains
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Detrital zircon U-Pb laser-ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) composite-sample age distributions for upper Saglek Basin Rut H-11 samples (green histograms) and Canadian Great Plains (blue histograms) presented herein, compared to lower Saglek Basin samples and candidate sediment sources in North America (yellow histograms). Kernel density estimates (KDEs) are shown in red and use a 25 m.y. bandwidth and an adaptive Epanechnikov kernel. Probability density functions (PDFs) are shown in dark blue. All KDEs and PDFs are area-normalized with the exception of those accompanied by dotted red lines, for which dominant younger population inhibits efficient plotting. In those cases, the dotted red lines depict the portion of area-normalized KDE older than 800 Ma for effective comparison. Data sources of previously published data (yellow histograms), from top to bottom: Paleocene Saglek Basin—Thrane and Haggart (2014); Cretaceous Saglek Basin—Thrane and Haggart (2014); Arctic Islands—Anfinson et al. (2012); Oligocene, Wyoming—Fan et al. (2015); Cretaceous Midcontinent—Finzel (2014); northern Canadian Cordillera—Lemieux et al. (2011); Belt Supergroup—Lewis et al. (2010); Utah-Nevada—Gehrels and Pecha (2014).

Detrital zircon U-Pb laser-ablation–inductively coupled plasma–mass spectro... Available to Purchase

Published: 20 April 2021
Figure 5. Detrital zircon U-Pb laser-ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) composite-sample age distributions for upper Saglek Basin Rut H-11 samples (green histograms) and Canadian Great Plains (blue histograms) presented herein, compared to lower Saglek Basin samples
Journal Article

Definition of the Churchill River Delta and its petroleum potential, offshore Labrador, Canada Open Access

Erin Gillis, Richard Wright, Victoria Mitchell, Nick Montevecchi
Journal: Interpretation
Published: 27 March 2020
Interpretation (2020) 8 (2): SH19–SH32.
DOI: https://doi.org/10.1190/INT-2019-0091.1
... Hopedale and Saglek Basins where there are five gas discoveries and one oil discovery. The modern long-offset 2D data set appears to indicate a working petroleum system within the newly mapped Cenozoic delta, and two phases of hydrocarbons may be present. 31 5 2019 18 12 2019 7 1 2019...
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The paleo-Bell River system was the major source of sedimentary detritus into the Saglek Basin. Adapted from Duk-Rodkin and Hughes (1997).

The paleo-Bell River system was the major source of sedimentary detritus in... Available to Purchase

Published: 01 December 2014
Figure 6 The paleo-Bell River system was the major source of sedimentary detritus into the Saglek Basin. Adapted from Duk-Rodkin and Hughes (1997).
Image
Composite detrital zircon U-Pb age probability functions for the Oligocene–Miocene Saglek Basin samples reported here (red), Oligocene–Miocene Canadian Great Plains fluvial conglomerates reported here (blue), and North American Cordillera retroarc foreland basin strata (gray; Laskowski et al., 2013). Age ranges for major igneous suites in Idaho and Montana are from Gaschnig et al. (2010). DZs—detrital zircons.

Composite detrital zircon U-Pb age probability functions for the Oligocene–... Available to Purchase

Published: 20 April 2021
Figure 6. Composite detrital zircon U-Pb age probability functions for the Oligocene–Miocene Saglek Basin samples reported here (red), Oligocene–Miocene Canadian Great Plains fluvial conglomerates reported here (blue), and North American Cordillera retroarc foreland basin strata (gray; Laskowski
Image
(A) Distribution of Mesozoic–Cenozoic basins on the Labrador Sea margins of Greenland and Newfoundland-Labrador (after Gregersen et al., 2019). Surface current abbreviations: LC—Labrador Current. (B) Tectonostratigraphy of Saglek Basin. Biostratigraphic age interpretations are from: (i) micropaleontology (Bujak Davies Group, 1987); (ii) palynology (Bujak Davies Group, 1987); and (iii) palynology (Fensome, 2015), including a single sample at the top of the section with an indeterminate Neogene biostratigraphic age. WGC—West Greenland Current; EGC—East Greenland Current; IC—Irminger Current; BIC—Baffin Island Current.

(A) Distribution of Mesozoic–Cenozoic basins on the Labrador Sea margins of... Available to Purchase

Published: 20 April 2021
Figure 2. (A) Distribution of Mesozoic–Cenozoic basins on the Labrador Sea margins of Greenland and Newfoundland-Labrador (after Gregersen et al., 2019 ). Surface current abbreviations: LC—Labrador Current. (B) Tectonostratigraphy of Saglek Basin. Biostratigraphic age interpretations are from
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Maturity trends in source rocks from selected wells drilled in the Hopedale and Saglek basins. A) The source rock samples were filtered showing only those with TOC &gt;1.5%, and with HI &gt;150 and OI &lt;150. B) Hydrogen Index versus depth with formations sampled. C) Detailed Pseudo Van Krevelen diagram for Hekja 0–71; samples here are from the Leif Member of the Kenamu Formation and the Gudrid Member of the Cartwright Formation, adapted from Fowler et al. (2005).

Maturity trends in source rocks from selected wells drilled in the Hopedale... Available to Purchase

Published: 01 December 2014
Figure 19 Maturity trends in source rocks from selected wells drilled in the Hopedale and Saglek basins. A) The source rock samples were filtered showing only those with TOC >1.5%, and with HI >150 and OI <150. B) Hydrogen Index versus depth with formations sampled. C) Detailed Pseudo
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Reconstruction back to Paleocene time, chron C27, when movements on the transform between Canada and Greenland began. Cape Dyer was situated about 200 km due west of Disko (Skaarup et al. 2006; Oakey &amp; Chalmers, 2012), whereas the Hekja well site was situated opposite the Nukik sites on the other side of the transform zone. Gjoa was the southernmost site and in close connection with the Saglek Basin (Fig. 1). Modified from Fig. 1 using Oakey &amp; Chalmers (2012, fig. 13). Legend as for Figure 1.

Reconstruction back to Paleocene time, chron C27, when movements on the tra... Available to Purchase

Published: 01 April 2020
sites on the other side of the transform zone. Gjoa was the southernmost site and in close connection with the Saglek Basin (Fig. 1 ). Modified from Fig. 1 using Oakey & Chalmers ( 2012 , fig. 13). Legend as for Figure 1 .
Image
Map of North America with the Bell River and its possible Oligocene catchment area (after McMillan, 1973; Sears, 2013). The Bell River hypothesis proposes that a single continuous drainage system extending from the North American Cordillera to the Labrador margin was established during Oligocene–Miocene time. Locations of Cenozoic fluvial conglomerates in western Canada and the Saglek Basin in the Labrador Sea are highlighted. Abbreviations: CB—Coast Batholith; hs—Hudson Strait; IB—Idaho Batholith; MM—Mackenzie Mountains; NQ—New Quebec province; TA—Torngat Arc; THO—Trans-Hudson orogen. Base map is from Google Earth.

Map of North America with the Bell River and its possible Oligocene catchme... Available to Purchase

Published: 20 April 2021
during Oligocene–Miocene time. Locations of Cenozoic fluvial conglomerates in western Canada and the Saglek Basin in the Labrador Sea are highlighted. Abbreviations: CB—Coast Batholith; hs—Hudson Strait; IB—Idaho Batholith; MM—Mackenzie Mountains; NQ—New Quebec province; TA—Torngat Arc; THO—Trans-Hudson
Image
Detrital zircon U-Pb laser-ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) age distributions for Saglek Basin Rut H-11 samples (green histograms) and Oligocene–Miocene Canadian Great Plains samples (blue histograms). Kernel density estimates (KDEs) are shown in red and use a 50 m.y. bandwidth and an adaptive Epanechnikov kernel. Probability density functions (PDFs) are shown in black. The KDEs of all Rut H-11 samples and the Swan Hills 16 sample are area-normalized. The KDEs of the remaining Great Plains samples are not area-normalized due to the dominance of young age peaks, which inhibit efficient plotting. However, the dotted red lines depict the portion of area-normalized KDE older than 800 Ma for effective comparison with other samples.

Detrital zircon U-Pb laser-ablation–inductively coupled plasma–mass spectro... Available to Purchase

Published: 20 April 2021
Figure 3. Detrital zircon U-Pb laser-ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) age distributions for Saglek Basin Rut H-11 samples (green histograms) and Oligocene–Miocene Canadian Great Plains samples (blue histograms). Kernel density estimates (KDEs) are shown in red
Journal Article

CLAY MINERALOGY AND CLAY-MINERAL PROVENANCE OF CRETACEOUS AND PALEOGENE STRATA, LABRADOR AND BAFFIN SHELVES Available to Purchase

Richard N. Hiscott
Published: 01 September 1984
Bulletin of Canadian Petroleum Geology (1984) 32 (3): 272–280.
DOI: https://doi.org/10.35767/gscpgbull.32.3.272
... are generally thin (< 1 km) and are restricted to the central areas of the Hopedale and Saglek Basins or to small graben on the flanks of arches. This distribution, coarse grain sizes, and mineralogical composition (Higgs, 1978) all indicate that local source areas on tilted horsts of Precambfian basement...
View PDF for article title, CLAY MINERALOGY AND CLAY-MINERAL PROVENANCE OF CRETACEOUS AND PALEOGENE STRATA, LABRADOR AND BAFFIN SHELVES
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Stratigraphy, structure and petroleum potential of the Lady Franklin and Maniitsoq Basins, offshore southern West Greenland Available to Purchase

Aage Bach Sørensen
Published: 01 August 2006
Petroleum Geoscience (2006) 12 (3): 221–234.
DOI: https://doi.org/10.1144/1354-079305-692
... are favourable for the discovery of significant oil and gas accumulations. In the northern and central part of the Hopedale Basin significant hydrocarbon discoveries have been made in the Snorri J-90, S. Hopedale E-33, Gudrid H-55 and Bjarni H-81 wells ( Bell 1989 ). In the Saglek Basin a gas/condensate...
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View PDF for article title, Stratigraphy, structure and petroleum potential of the Lady Franklin and Maniitsoq <span class="search-highlight">Basins</span>, offshore southern West Greenland
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Patterns and mechanisms of fluvial sediment flux and accumulation in two subarctic fjords: Nachvak and Saglek Fjords, Nunatsiavut, Canada Available to Purchase

Samuel J. Bentley, Elisabeth Kahlmeyer
Published: 16 October 2012
Canadian Journal of Earth Sciences (2012) 49 (10): 1200–1215.
DOI: https://doi.org/10.1139/e2012-052
... accumulation is more rapid than that averaged over postglacial time. Present mass accumulation rates for the Nachvak Fjord basin are on average 39 000 t·year –1 for the entire basin, and for Saglek 43 000 t·year –1 for the entire basin, with sediment-gravity flows being one likely mechanism for sediment...
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View PDF for article title, Patterns and mechanisms of fluvial sediment flux and accumulation in two subarctic fjords: Nachvak and <span class="search-highlight">Saglek</span> Fjords, Nunatsiavut, Canada
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