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TitleMesoproterozoic Borden Basin, northern Baffin Island
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorTurner, E C
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. 55-77, 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
NTS37G; 38B/01; 38B/02; 38B/03; 38B/04; 38B/05; 38B/06; 47G/01; 47G/08; 47G/09; 47G/10; 47G/15; 47G/16; 48A; 48B/01; 48B/02; 48B/07; 48B/08; 48B/09; 48B/10; 48B/15; 48B/16; 48C/01; 48C/02; 48C/07; 48C/08; 48D/01; 48D/02; 48D/03; 48D/04; 48D/05; 48D/06; 48D/07; 48D/10; 48D/11; 48D/12
AreaBaffin Island; Borden Peninsula
Lat/Long WENS -86.0000 -76.0000 74.0000 71.0000
Subjectsregional geology; stratigraphy; structural geology; tectonics; geochronology; economic geology; paleontology; Science and Technology; Nature and Environment; bedrock geology; basement geology; lithology; igneous rocks; volcanic rocks; basalts; breccias; sedimentary rocks; arenites; siltstones; shales; carbonates; dolostones; flysch; molasse; clastics; structural features; faults; fault zones; grabens; geological history; basin evolution; unconformities; depositional history; depositional environment; paleoenvironment; clasts; provenance; tectonic evolution; tectonic history; rifting; plate margins; continental margins; deformation; intrusions; dykes, mafic; emplacement; faulting; magmatism; correlations; paleomagnetism; radiometric dating; uranium lead dating; zircon dates; field relations; stratigraphic analyses; tectonostratigraphic zones; lithostratigraphy; geometric analyses; metallogeny; mineral deposits; mineral occurrences; base metals; zinc; lead; copper; sulphides; pyrite; ore mineral genesis; ore controls; micropaleontology; microfossils; Archean; Mesoproterozoic; Borden Basin; Bylot Supergroup; Nauyat Formation; Adams Sound Formation; Arctic Bay Formation; Fabricius Fiord Formation; Iqqittuq Formation; Ikpiarjuk Formation; Angmaat Formation; Nanisivik Formation; Nanisivik Deposit; Victor Bay Formation; Athole Point Formation; Strathcona Sound Formation; Aqigilik Formation; Sinasiuvik Formation; Grenville Orogen; Franklinian Margin; Milne Inlet Graben; Eclipse Trough; Mackenzie Large Igneous Province; White Bay Fault Zone; Tikirarjuaq Fault Zone; Magda Fault Zone; Baffin Fault Zone; Keystone Fault; Keystone Graben; Franklin Dykes; Paleoproterozoic; Precambrian; Proterozoic
Illustrationslocation maps; geoscientific sketch maps; stratigraphic charts; photographs; cross-sections; schematic cross-sections
ProgramGEM2: Geo-mapping for Energy and Minerals Baffin Region Atlas
Released2022 08 15
AbstractThe unmetamorphosed and nearly undeformed late Mesoproterozoic Borden Basin on northern Baffin Island exhibits sag, rift, and foreland-basin-like phases. A thin, partly subaqueous basal basalt is overlain by mature shallow-marine quartz arenite, upward-deepening siltstone and shale (marking the beginning of rifting), a complex suite of rift-delineated carbonate units containing two dramatic internal unconformities, and a flysch-molasse-like succession containing evidence of sediment derivation from the Grenville Orogen. Geochronological data indicate that deposition of most of the succession took place ca. 1100 to 1050 Ma. One of the carbonate intervals, Nanisivik Formation, is the main host of regional Zn-Pb showings including the past-producing Nanisivik orebody, which formed in the late Mesoproterozoic from low-temperature fluids, and which was emplaced under strong structural and stratigraphic controls. Minimal postdepositional deformation is limited to the emplacement of mafic dykes ca. 720 Ma and repeated reactivation of basement-rooted normal faults.
Summary(Plain Language Summary, not published)
The focus of this paper is on the geological and structural composition of the Mesoproterozoic Borden Basin in northern Baffin Island. An overview of the research conducted on the Borden Basin is given. The stratigraphy of the basin along with interpretations of the depositional environments is discussed and detailed formation descriptions are provided. The latest geochronological data for the Bylot Supergroup is summarized and the tectonostratigraphic evolution of the basin is presented. Possible correlations of the Borden Basin with other Bylot basins is considered. This is Paper 3 in the Baffin Island and the Labrador-Baffin Seaway Geological Synthesis (B608).

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