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TitleBasins and fold belts of Prince Patrick Island and adjacent area, Canadian Arctic Islands
DownloadDownloads
AuthorHarrison, J C; Brent, T A
SourceGeological Survey of Canada, Bulletin no. 560, 2005, 208 pages; 1 CD-ROM, https://doi.org/10.4095/220345
Year2005
PublisherNatural Resources Canada
Documentserial
Lang.English
MapsPublication contains 1 map
Map Info.geological, bedrock, structural, lithological, 1:250,000
Mediapaper; CD-ROM; digital; on-line
RelatedThis publication is accompanied by Harrison, J C; Brent, T A; Embry, A E; (2004). Bedrock geology, Prince Patrick and Eglinton Islands and the surrounding channels, Canadian Arctic Archipelago, Northwest Territories, Geological Survey of Canada, "A" Series Map no. 2026A
RelatedThis publication contains the following publications
File formatpdf (Adobe® Acrobat® Reader® v. 5.1 is included / est fourni)
ProvinceNorthwest Territories
NTS88G; 89A/05; 89A/12; 89A/13; 89B; 89C; 89D/04; 89D/05; 89D/12; 98H; 99A
AreaPrince Patrick Island; Eglinton Island
Lat/Long WENS-123.0000 -115.0000 77.7500 75.2500
Subjectsstructural geology; tectonics; sedimentology; paleontology; geophysics; stratigraphy; sedimentary basins; basin analysis; basins; rifts; structural analyses; structural features; folds; faults; faults, thrust; structural interpretations; tectonic evolution; tectonic environments; tectonic interpretations; tectonic elements; manganese ores; sub-bituminous coal; coal; Lower Carboniferous; Lower Cretaceous; bedrock geology; fossil zones; biostratigraphy; bouguer anomalies; total field magnetics; seismic interpretations; seismic profiles; stratigraphic correlations; stratigraphic analyses; grabens; wells; isochrons; magnetic disturbances; thermal maturation; thermal alteration index; hydrocarbon generation; Kitson Formation; Blacley Formation; Cape de Bray Formation; Schei Point Group; Grosvenor Island Formation; Jameson Bay Formation; McConnell Island Formation; Hiccles Cove Formation; Ringnes Formation; Awingak Formation; Deer Bay Formation; Isachsen Formation; Christopher Formation; Kanguk Formation; Prince Patrick Uplift; Sverdrup Basin; Satellite F-68 well; Wilkie Point J-51 well; Weatherall Formation; Jameson Bay C-31 well; Eglinton P-24 well; Tullett Basin; Green Bay Uplift; Green Bay Graben; Tullett Point Basin; Mould Bay Graaben; Tullett Central Graben; Richards Pint Graben; Hardinge Bay Graben; Houghton Head Graben; M'Clure Strait Basin; Cape Cam Graben; Arctic Continental Terrace Wedge; Beaufort Formation; ammonites; bivalvia; dinoflagellata; foraminifera; magnetic declination; rock-eval pyrolysis; rock-eval analyses; manganese carbonates; Cenozoic; Triassic; Jurassic; Cretaceous; Mesozoic; Quaternary; Tertiary; Permian; Carboniferous; Mississippian; Devonian; Pennsylvanian; Silurian; Proterozoic
Illustrationssketch maps; cross-sections; seismic profiles
Released2005 09 01
AbstractPrince Patrick and Eglinton islands have a polar desert climate and a landscape of coastal plains and dissected plateaux with limited vegetation cover. Use of a properly damped surveyor's compass is possible, however, magnetic declination changes markedly over short distances and large temporal variations are present.

Bedrock of the report area is divisible into four major successions. These include: 1) 14 to 18 km of Proterozoic(?) and/or older bedrock above the Mohorovicic Discontinuity; 2) 10 to 14 km of thermally overmature but variably tectonized ("Franklinian") strata that range from Vendian(?) at the base through Upper Devonian at the top; 3) less than 1 km grading to more than 7 km of thermally mature and immature, relatively undeformed Carboniferous through Lower Cretaceous strata of the Sverdrup Basin, including up to 2 km of Middle Jurassic through Upper Cretaceous strata preserved in four peripheral basins and numerous small grabens; and 4) 70 m to more than 600 m of unconsolidated Pliocene sand, gravel, and peat, and related seismically defined Neogene strata of the Arctic Continental Terrace Wedge. The Franklinian succession is further subdivided into siliciclastic rocks of the Devonian clastic wedge (up to 6000 m thick), subsurface Lower Devonian and older strata of the Prince Patrick Platform, and correlative seismically defined deep-water strata of Canrobert Trough.

A thrust-fold belt imaged seismically in the northeast is continuous with folds known at the surface on northwestern Melville Island, and folded Devonian strata are everywhere separated from Carboniferous and younger rocks by a profound angular unconformity. Other lower Paleozoic folds extend under southwestern Prince Patrick Island. A Carboniferous rift system located under the Sverdrup Basin margin has developed on the eroded roots of the Paleozoic fold belt. The rift formed in the Early Carboniferous (Serpukhovian), expanded to the southwest during the later Carboniferous, and was partly inverted during the Early Permian. Mid-Permian through early Middle Jurassic was a time of passive subsidence and progressive basin expansion toward the southwest. During Sverdrup Basin subsidence, four intracratonic basins, separated by Devonian "basement" highs, developed to the southwest between Middle Jurassic and Late Cretaceous time. An array of northerly trending horsts and grabens also developed during this time, part of a rift system that provides a geological record of the early
development of the Arctic Ocean basin.

Potential exists for far-travelled hydrocarbons within the Permo-Carboniferous and Jurassic-Cretaceous rift systems and in stratigraphic traps on the margins of the Mesozoic basins. Subbituminous coal seams to 1.5 m occur in Lower Cretaceous strata, and deposits of manganese carbonate are widespread in Campanian sandstone of Eglinton Island.
GEOSCAN ID220345