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TitleLate Cretaceous uplift of northern Axel Heiberg Island, Nunavut, revealed by apatite fission track data, and a schematic model related to Baffin Bay extension
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorHadlari, TORCID logo; Issler, D RORCID logo
SourceGeological Survey of Canada, Open File 8494, 2019, 98 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatpdf
NTS560D/03; 560D/06
AreaCanadian Arctic Archipelago; Axel Heiberg Island; Rens Fiord; Greenstone Lake
Lat/Long WENS -94.0000 -92.0000 81.5000 81.0000
Subjectstectonics; geochronology; structural geology; geophysics; Upper Cretaceous; Campanian; Paleogene; crustal studies; crustal uplift; crustal models; fission-track dates; tectonic history; thermal history; plate tectonics; plate motions; rifting; magmatism; tectonic setting; bedrock geology; basement geology; structural features; faults; mid-ocean ridges; geophysical interpretations; paleogeography; correlations; Franklinian Basin; Sverdrup Basin; Aurland Formation; Jaeger Lake Assemblage; Rens Fiord Sandstone; Stallworthy Formation; Svartavaeg Formation; Hazen Formation; Aurland Fiord Formation; Kanguk Formation; Eureka Sound Group; Expedition Formation; Strand Bay Formation; Iceberg Bay Formation; Amerasia Basin; Lomonosov Ridge; Eurasia Basin; North American Plate; Eurasian Plate; Wegener Transform; Spitsbergen Transform; Phanerozoic; Cenozoic; Tertiary; Mesozoic; Cretaceous; Paleozoic; Cambrian
Illustrationsgeoscientific sketch maps; stratigraphic charts; plots; time series; correlation sections; location maps; models; geochronological charts; rose diagrams; tables; histograms; frequency distribution diagrams
ProgramGEM2: Geo-mapping for Energy and Minerals Western Arctic, Pearya Terrane, North Ellesmere
Released2019 02 06
AbstractA sample of Cambrian sandstone from northern Axel Heiberg Island near Rens Fiord has yielded apatite fission track data indicating Late Cretaceous cooling. The preferred thermal model shows fairly rapid cooling (~2 °C/m.y.) from the Cenomanian to early Paleocene followed by modest Paleogene burial-related heating (~50±10 °C) and subsequent late Cenozoic exhumation and cooling (~1 °C/m.y.). An alternate model shows continuous Late Cretaceous-Cenozoic cooling at an average rate of ~1.1 °C/m.y. The Late Cretaceous exhumation event is interpreted as reactivation and uplift of a rift shoulder, which a new schematic model relates to modest southward motion of the northern Canadian Arctic Islands relative to Greenland and Eurasia during rifting of Baffin Bay.
Summary(Plain Language Summary, not published)
Apatite fission track analysis provides information on when rocks have cooled during erosion. We propose the Canadian portion of North America drifted south relative to Greenland and Eurasia causing uplift of the margins of the Canadian Arctic Islands in the Late Cretaceous (ca. 77 million years ago).

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