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OFR 2018-06

Geochronology in Support of the Alberta Table of Formations: Rhenium-Osmium Isotope Dating of Selected Devonian and Jurassic Core Samples from Central and Northern Alberta

Abstract: This report presents the results of rhenium-osmium (Re-Os) isotope analysis performed on 11 organic-rich and radiogenic shale samples from the following Devonian and Jurassic formations in central and northern Alberta: Keg River Formation (1 sample) Duvernay Formation (2 samples) Muskwa Formation (1 sample) Gordondale (5 samples) and Poker Chip Shale (2 samples) members of the Fernie Formation. The samples were collected from core hosted by the Alberta Energy Regulator Core Research Centre in Calgary and analyses were performed at the Crustal Re-Os Geochronology Laboratory at the University of Alberta. Current detailed stratigraphic work at the AGS includes an effort to resolve uncertainties regarding the age and stratigraphic position of a number of stratigraphic units, based on precise isotope dating. Recent advances in dating organic-rich shales using the Re-Os isotope system have allowed us to date important hydrocarbon source rocks in the Western Canada Sedimentary Basin.   Place Keywords 83a 83b 83c 83d 83e 83f 83g 83h 83i 83j 83k 83l 83m 83n 83o 83p 84a 84b 84c 84d 84e 84f 84g 84h 84i 84j 84k 84l alberta canada Theme Keywords devonian geochronology isotopes jurassic stratigraphy

Pana, D.I.  Creaser, R.A.  Toma, J.  Playter, T.L.  Corlett, H.  Hauck, T.E.  Peterson, J.T.  Grobe, M.  Poulton, T.P.  2018-06-05