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TitleComposite stratigraphic section of exceptionally exposed middle Bylot Supergroup carbonate rocks along Tremblay Sound, northwestern Baffin Island, Nunavut
AuthorGibson, T M; Wörndle, S; Halverson, G P; Agic, H; Lamothe, K G; Rainbird, R H; Skulski, T
SourceCanada-Nunavut Geoscience Office, Summary of Activities 2017, 2017 p. 81-91
LinksOnline - En ligne
Year2017
Alt SeriesNatural Resources Canada, Contribution Series 20170252
PublisherCanada-Nunavut Geoscience Office
Documentserial
Lang.English
Mediapaper; on-line; digital
File formatpdf
ProvinceNunavut
NTS48A/01; 48A/02; 48A/07; 48A/08; 48A/09; 48A/10
AreaBaffin Island; Tremblay Sound
Lat/Long WENS -82.0000 -80.0000 72.7500 72.0000
Subjectsstratigraphy; tectonics; paleontology; mineralogy; economic geology; field work; bedrock geology; lithology; sedimentary rocks; carbonate rocks; conglomerates; sandstones; siltstones; shales; igneous rocks; volcanic rocks; tuffs; basalts; structural features; faults; fractures; intrusions; dykes; stratigraphic analyses; tectonostratigraphic zones; tectonic history; depositional history; unconformities; micropaleontology; microfossils; fossil assemblages; microorganisms; sedimentary structures; lithofacies; mineral potential; mineral occurrences; base metals; zinc; lead; silver; copper; mineralization; ore mineral genesis; ore controls; Neoproterozoic; Mesoproterozoic; Bylot Supergroup; Borden Basin; Uluksan Group; Iqqittuq Formation; Angmaat Formation; Victor Bay Formation; Athole Point Formation; Milne Inlet Graben; Eukaryotes; Nanisivik Formation; Franklin Dykes; siliciclastics; Precambrian; Proterozoic
Illustrationslocation maps; geoscientific sketch maps; stratigraphic sections; photographs; lithologic sections
ProgramBaffin Bedrock Mapping, GEM2: Geo-mapping for Energy and Minerals
Released2017 01 01
AbstractOver the course of this project, nine stratigraphic sections of the ~1050 Ma middle Bylot Supergroup in the Borden Basin were measured, logged and sampled from five camps set up along Tremblay Sound, northwestern Baffin Island, Nunavut. Together, these provide a nearly continuous composite stratigraphic section ~1700 m thick of the carbonate-dominated Iqqittuq, Angmaat, Victor Bay and Athole Point formations. This study broadly confirms previous depositional interpretations of the Borden Basin. In addition, this remarkably complete composite stratigraphic section along Tremblay Sound contains an unusually thick section of the Athole Point Formation that preserves a tuff bed. Samples from this composite section will be used in future geochemical, paleontological and geochronological investigations to gain a better understanding of the geological history of the Bylot Supergroup, and to characterize the depositional environments and biological diversity near the 1000 Ma Mesoproterozoic-Neoproterozoic transition.
Summary(Plain Language Summary, not published)
Over the course of this project, nine stratigraphic sections of the ~1050 million year-old (Ma) middle Bylot Supergroup in the Borden Basin were measured, logged and sampled from five fly camps along Tremblay Sound, northwestern Baffin Island, Nunavut. Together these provide a nearly continuous ~1700 m-thick composite stratigraphic section of the carbonate-dominated Iqqittuq, Angmaat, Victor Bay and Athole Point formations. This study broadly confirms previous depositional interpretations of the Borden Basin, and the remarkably complete composite stratigraphic section along Tremblay Sound contains an unusually-thick section of the Athole Point Formation. Samples from this composite section will be implemented in future geochemical, paleontological and geochronological investigations aimed at better understanding the geological history of the Bylot Supergroup and characterizing the depositional environments and biological diversity near the 1000 Ma Mesoproterozoic¿Neoproterozoic transition.
GEOSCAN ID306154