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TitleGeology of the northern margin of the Trans-Hudson Orogen (Foxe Fold Belt), central Baffin Island, Nunavut
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AuthorCorrigan, D; Scott, D J; St-Onge, M R
SourceGeological Survey of Canada, Current Research (Online) no. 2001-C23, 2001, 27 pages, https://doi.org/10.4095/212249 (Open Access)
Image
Year2001
PublisherNatural Resources Canada
Documentserial
Lang.English
Mediapaper; on-line; digital; CD-ROM
RelatedThis publication is contained in Geological Survey of Canada; (2001). Current Research 2001, winter release, Geological Survey of Canada, Current Research no. 2001
File formatpdf
ProvinceNunavut
NTS37A; 37D
AreaBaffin Island; Melville Peninsula
Lat/Long WENS-76.0000 -68.0000 70.0000 68.0000
Subjectstectonics; structural geology; general geology; Archean; mafic volcanic rocks; plutonic rocks; tectonic environments; faults, thrust; monzo-granites; metamorphic facies; metamorphic zones; folding; marbles; quartzites; schists; iron formations; pelites; turbidites; basement geology; metamorphism; mineral potential; Trans-Hudson Orogen; Foxe Fold Belt; Rae Province; Piling Group; Dewar Lakes Formation; Flint Lake Formation; Astarte River Formation; Longstaff Bluff Formation; Bravo Lake Formation; Foxe Basin; tectonic boundaries; boundaries; Precambrian; Proterozoic
Illustrationssketch maps; photographs
ProgramCentral Baffin 4-D Project
Released2001 01 01
AbstractThe northern flank of the Trans-Hudson Orogen on central Baffin Island comprises, from north to south 1) reworked Archean basement (Rae Province); 2) the Paleoproterozoic Piling Group, which comprises a lower, pas- sive-margin sequence (Dewar Lakes and Flint Lake formations) and an upper, foredeep sequence (Astarte River and Longstaff Bluff formations); 3) a mafic volcanic thrust sheet (Bravo Lake formation); and 4) a metamor- phic-plutonic internal zone. Field relationships suggest that the contact between the Piling Group and the underly- ing Archean basement is a reworked unconformity. Locally, the contact is obscured by the presence of large biotite syeno- to monzogranite plutons that crosscut both the Piling Group and the Archean basement. Four distinct tectonometamorphic episodes are recorded, with an earlier, middle-amphibolite-facies Archean event (D 1A ), two compressional Paleoproterozoic events (D 1P and D 2P ), and a late cross-folding event (D 3P ) that produced a set of basement culminations in the southern portion of the map area.
GEOSCAN ID212249