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TitleOverview of the stratigraphy, paleoclimate, and paleoceanography of the Labrador-Baffin Seaway
Associated Data
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorDafoe, L TORCID logo; Williams, G L; Dickie, K; Gregersen, U; Knutz, P C; Dam, G; Pedersen, G K; Nøhr-Hansen, H; Haggart, J W; DesRoches, K J
SourceGeological synthesis of Baffin Island (Nunavut) and the Labrador-Baffin Seaway; by Dafoe, L TORCID logo (ed.); Bingham-Koslowski, NORCID logo (ed.); Geological Survey of Canada, Bulletin 608, 2022 p. 311-339, Open Access logo Open Access
PublisherNatural Resources Canada
Mediaon-line; digital
RelatedThis publication is contained in Geological synthesis of Baffin Island (Nunavut) and the Labrador-Baffin Seaway
File formatpdf; html
ProvinceNunavut; Newfoundland and Labrador; Northern offshore region
NTS3; 14; 15; 16; 23I; 23O; 23P; 25A; 25G; 25H; 25I; 25J; 25K; 25L; 25M; 25N; 25O; 25P; 26; 27; 28; 29A; 29B; 29C; 29D; 35P; 36A; 36B; 36C; 36D; 36E; 36F; 36G; 36H; 36I; 36P; 37; 38; 39A; 39B; 39C; 39D; 47E; 47F; 47G; 47H; 48A; 48B; 48C; 48D; 48E; 57E; 57H; 58A; 58D
AreaBaffin Island; Baffin Bay; Bylot Island; Davis Strait; Labrador; Labrador Sea; Canada; Greenland; Denmark
Lat/Long WENS -90.5000 -43.0000 78.0000 52.0000
Subjectsregional geology; stratigraphy; paleontology; tectonics; geophysics; structural geology; mineralogy; geochemistry; Science and Technology; Nature and Environment; continental margins; continental shelf; plate margins; stratigraphic analyses; stratigraphic correlations; lithostratigraphy; biostratigraphy; fossil assemblages; fossils; flora; macrofossils; micropaleontology; microfossils; palynology; paleoclimatology; paleocurrents; bedrock geology; lithology; sedimentary rocks; sandstones; shales; mudstones; carbonates; igneous rocks; volcanic rocks; basalts; structural features; fault zones; faults; grabens; fracture zones; geological history; depositional history; depositional environment; sedimentation; tectonic evolution; tectonic history; basin evolution; rifting; sea floor spreading; subsidence; volcanism; magmatism; intrusions; sills; crustal movements; deformation; faulting; unconformities; continental crust; oceanic crust; mantle; exploration wells; core samples; geophysical interpretations; seismic interpretations; seismic reflection surveys; magnetic interpretations; clay mineralogy; isotopic studies; oxygen isotopes; submarine features; Paleogene; Neogene; Pleistocene; Holocene; Recent; Baffin Island Margin; Baffin Island Shelf; Labrador Margin; Labrador Shelf; West Greenland Margin; Cumberland Basin; Nuuk Basin; Nuussuaq Basin; Melville Bay Graben; Dinoflagellates; Foraminifera; Ammonites; Paleocene-Eocene Thermal Maximum; Eocene Thermal Maximum; Early Eocene Climatic Optimum; Mid-Miocene Climatic Optimum; Labrador Current; Acritarchs; Hopedale Basin; Labrador Sea Basin; Paamiut South Basin; Saglek Basin; Fylla Structural Complex; Gjoa High; Lady Franklin Basin; North Ungava Basin; Ikermiut Basin; Sisimuit Basin; Davis Strait High; Saglek Formation; Mokami Formation; Kenamu Formation; Cartwright Formation; Gudrid Formation; Markland Formation; Bjarni Formation; Alexis Formation; Ataneq Formation; Manîtsoq Formation; Kangâmiut Formation; Nukik Formation; Ikermut Formation; West Greenland Basalt Group; Appat-Kitsissut Clastics; Baffin Basin; Upemavik Basin; Kivioq Ridge; Melville Bay Ridge; Scott Graben; Kap York Basin; outcrops; Phanerozoic; Cenozoic; Quaternary; Tertiary; Mesozoic; Cretaceous
Illustrationslocation maps; geoscientific sketch maps; biostratigraphic charts; stratigraphic charts; profiles; seismic profiles
ProgramGEM2: Geo-mapping for Energy and Minerals Baffin Region Atlas
Released2022 08 15
AbstractThe tectonic evolution of the Labrador-Baffin Seaway began with Early Cretaceous extension between Greenland and North America, resulting in the development of basins infilled with nonmarine and shallow-marine clastic strata. The Late Cretaceous was a time of continued rifting and local subsidence, with deposition of widespread deeper water marine mud and localized sand deposits. Seafloor spreading began in the south in the Latest Cretaceous and propagated throughout the seaway by the Early Paleocene. Regional seafloor spreading coincided with the onset of significant volcanism in the Davis Strait to central West Greenland region, as well as a regional regression. A change in the spreading direction around the Paleocene- Eocene boundary, was accompanied by strike-slip motion in the Davis Strait and Baffin Bay, deformation and basin inversion, and development of regional unconformities. After seafloor spreading ceased in the late Eocene, the seaway was filled by upper Paleogene to Recent sediments, with clinoform progradation building the modern-day shelves.
Summary(Plain Language Summary, not published)
The stratigraphic successions of the Labrador-Baffin Seaway are compared in terms of their lithology, paleoenvironments of deposition, and age as a way to show regional relationships based on detailed studies conducted in sub-regions of the Seaway. Regional relationships are described in terms of the lithostratigraphic units, stratigraphic distribution maps and seismic profiles crossing the conjugate margins. We show and describe the broad correlations in relation to a seismic stratigraphic framework for the region. This study summarizes five of the papers in the Baffin Synthesis and forms a unique contribution in collating the stratigraphy of the region.

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