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TitlePhanerozoic bedrock geology, Vendom Fiord area, Ellesmere Island, Nunavut
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AuthorThorsteinsson, R; Harrison, J C; de Freitas, T A
SourceGeological Survey of Canada, "A" Series Map 2142A, 2009, 2 sheets; 1 CD-ROM, https://doi.org/10.4095/226426
Year2009
PublisherNatural Resources Canada
Documentserial
Lang.English
Maps1 map
Map Info.geological, bedrock, structural geology, 1:125,000
Mediapaper; on-line; digital; CD-ROM
File formatreadme / lisez-moi
File formatpdf; JPEG2000; E00; shp
ProvinceNunavut
NTS49D
AreaEllesmere Island; Vendom Fiord; Makinson Inlet; Prince of Wales Icefield; Split Lake; Polynia Bluff; Hook Point; Swinnerton Peninsula; Protecteur Point; St Laurent Point; Natsiq Island; Ujuk Island; Stenkul Fiord; Baumann Fiord; Piliravijuk Bay; Palisade Glacier; Split Lake Glacier; Hook Glacier; Wykeham Glacier; Manson Icefield; Bowman Island; Bentham Fiord
Lat/Long WENS-84.0000 -80.0000 78.0000 77.0000
Subjectsstructural geology; stratigraphy; bedrock geology; structural features; faults; faults, thrust; bedding; folds; anticlines; synclines; tectonic setting; sedimentary basins; stratigraphic correlations; lithology; sedimentary rocks; conglomerates; breccias; sandstones; limestones; mudstones; shales; dolostones; siltstones; reefal facies; grainstones; gypsum; anhydrite; arenites; slates; stromatolites; igneous rocks; intrusive rocks; granites; metamorphic rocks; gneisses; fossils; sedimentary structures; glaciers; sediments; gravels; sands; silts; muds; Margaret Formation; Mount Moore Formation; Mount Bell Formation; Mount Lawson Formation; Hell Gate Formation; Fram Formation; Hecla Bay Formation; Strathcona Fiord Formation; Blue Fiord Formation; Vendom Fiord Formation; Goose Fiord Formation; Douro Formation; Cape Storm Formation; Allen Bay Formation; Cornwallis Group; Irene Bay Formation; Thumb Mountain Formation; Bay Fiord Formation; Eleanor River Formation; Baumann Fiord Formation; Christian Elv Formation; Cape Clay Formation; Cass Fjord Formation; Cape Leiper Formation; Cape Ingersoll Formation; Police Post Formation; Cape Kent Formation; Cape Wood Formation; Dallas Bugt Formation; Eids Formation; Devon Island Formation; Cape Phillips Formation; Phanerozoic; Cenozoic; Quaternary; Tertiary; Paleozoic; Devonian; Silurian; Ordovician; Cambrian; Precambrian; Proterozoic
Illustrationssketch maps; cross-sections
ProgramSecure Canadian Energy Supply
LinksMetadata - Métadonnées
Image
Released2009 02 11; 2009 03 25
AbstractThe Phanerozoic bedrock geology of Vendom Fiord map area (NTS 49D) features unmetamorphosed sedimentary rocks of mostly Lower Cambrian to Upper Devonian and Paleogene ages exposed within 1) the central Ellesmere Fold Belt, 2) an intensely faulted portion of the Arctic Platform, and 3) the an intervening regional synclinorium (Schei Syncline) which can be traced from central Ellesmere Island to Grinnell Peninsula on western Devon Island. The Paleozoic succession thickens westward from a feather edge where the Lower Cambrian lies nonconformably on Paleoproterozic granulites of the Inglefield Mobile belt (1.98 to 1.75 Ga) to a thickness exceeding 10 km under the western map edge. Prominent depositional features of the lower Paleozoic include shelf to basin facies changes involving nine formations of Upper Ordovician to Lower Devonian ages, biostromal carbonate buildups of Silurian age containing migrated hydrocarbons, important unconformities in Pragian and Emsian strata that provide a late Caledonian uplift history for south eastern Ellesmere Island, and Middle to Upper Devonian foreland clastic formations that are the depositional record of the Ellesmerian Orogeny. The Schei Syncline and Central Ellesmere Fold Belt are Devonian-Early Carboniferous tectonic features produced during the Ellesmerian deformation. Subsequent planation has formed a regional angular unconformity with Upper Paleocene to Middle Eocene Eureka Sound Group sediments deposited above this surface and preserved now in numerous widely scattered fault-bounded outliers. These strata are the depositional response to phases of compressive and strike-slip deformation during the Eurekan Orogeny, also related to more distant events including sea floor spreading in Baffin Bay and the plate motions of Greenland. Commercially significant coal resources are exposed in Eocene strata near the south shore of Stenkul Fiord.
GEOSCAN ID226426