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• W3212654846 endingPage "2261" @default.
• W3212654846 startingPage "2234" @default.
• W3212654846 abstract "Abstract Detrital K-feldspar 40Ar/39Ar thermochronology was conducted on clastic sedimentary rock samples collected from northern exposures of the Upper Cretaceous Nanaimo Group on Vancouver Island and adjacent Gulf Islands of British Columbia to constrain the denudation history of the local Coast Mountains batholith source region and determine the origin of extraregional sediment supplied to the basin. Strata of the northern Nanaimo Group deposited between 86 and 83 Ma (Comox and Extension formations) exhibit a 130–85 Ma age distribution of detrital K-feldspar 40Ar/39Ar ages that lack age maxima. These are interpreted to have been sourced from the southwestern Coast Mountains batholith. Younger strata deposited between 83 and 72 Ma (Cedar District and De Courcy formations) yield a broader age range (150–85 Ma) with an age maximum near the depositional age. These results indicate focused denudation of deeper-seated rocks east of the Harrison Lake fault. The youngest units deposited after 72 Ma (Geoffrey, Spray, and Gabriola formations) primarily yield younger than 75 Ma detrital K-feldspar ages with pronounced age maxima near the depositional age. This sediment was sourced extraregionally relative to the Coast Mountains batholith. We sought to constrain the origin of the extraregional sediment by measuring the thermal histories of 74 samples of basement rocks from throughout the Pacific Northwest, and by compiling a database of over 2400 biotite 40Ar/39Ar and K/Ar cooling ages from predominantly Cretaceous batholiths along the western North American margin. This analysis focused upon two previously proposed source regions: the Idaho batholith and the Mojave-Salina margin of southern California. The Nanaimo detrital K-feldspar 40Ar/39Ar age distributions favor the peraluminous Late Cretaceous Idaho batholith and its Proterozoic Belt-Purcell Supergroup sedimentary wall rock as the more likely source of the extraregional sediment and disfavor the Baja–British Columbia hypothesis for 2000–4000-km-scale translation of rocks along the margin during the Late Cretaceous." @default.
• W3212654846 created "2021-11-22" @default.
• W3212654846 creator A5040170068 @default.
• W3212654846 creator A5046006003 @default.
• W3212654846 creator A5050755053 @default.
• W3212654846 creator A5088780429 @default.
• W3212654846 date "2021-11-08" @default.
• W3212654846 modified "2023-10-12" @default.
• W3212654846 title "Testing local and extraregional sediment sources for the Late Cretaceous northern Nanaimo basin, British Columbia, using 40Ar/39Ar detrital K-feldspar thermochronology" @default.
• W3212654846 cites W136235003 @default.
• W3212654846 cites W1577327320 @default.
• W3212654846 cites W1631912640 @default.
• W3212654846 cites W174703103 @default.
• W3212654846 cites W1814512763 @default.
• W3212654846 cites W1816189436 @default.
• W3212654846 cites W1911637049 @default.
• W3212654846 cites W1912005851 @default.
• W3212654846 cites W1917708132 @default.
• W3212654846 cites W1932834525 @default.
• W3212654846 cites W1965182990 @default.
• W3212654846 cites W1966105461 @default.
• W3212654846 cites W1967824957 @default.
• W3212654846 cites W1968906770 @default.
• W3212654846 cites W1970369754 @default.
• W3212654846 cites W1974109048 @default.
• W3212654846 cites W1976989630 @default.
• W3212654846 cites W1978899128 @default.
• W3212654846 cites W1982801865 @default.
• W3212654846 cites W1984121331 @default.
• W3212654846 cites W1985832034 @default.
• W3212654846 cites W1987135569 @default.
• W3212654846 cites W1988308108 @default.
• W3212654846 cites W1995766312 @default.
• W3212654846 cites W1999602453 @default.
• W3212654846 cites W2000227579 @default.
• W3212654846 cites W2000814912 @default.
• W3212654846 cites W2004980689 @default.
• W3212654846 cites W2005806619 @default.
• W3212654846 cites W2008665634 @default.
• W3212654846 cites W2009477755 @default.
• W3212654846 cites W2018538890 @default.
• W3212654846 cites W2020106607 @default.
• W3212654846 cites W2020122101 @default.
• W3212654846 cites W2020494700 @default.
• W3212654846 cites W2025540983 @default.
• W3212654846 cites W2028443609 @default.
• W3212654846 cites W2030958259 @default.
• W3212654846 cites W2031313070 @default.
• W3212654846 cites W2031705003 @default.
• W3212654846 cites W2034531771 @default.
• W3212654846 cites W2039712160 @default.
• W3212654846 cites W2040278389 @default.
• W3212654846 cites W2040589077 @default.
• W3212654846 cites W2041226839 @default.
• W3212654846 cites W2042339511 @default.
• W3212654846 cites W2044938074 @default.
• W3212654846 cites W2046278415 @default.
• W3212654846 cites W2046329920 @default.
• W3212654846 cites W2046753698 @default.
• W3212654846 cites W2049249034 @default.
• W3212654846 cites W2050845223 @default.
• W3212654846 cites W2056866730 @default.
• W3212654846 cites W2057208829 @default.
• W3212654846 cites W2059140111 @default.
• W3212654846 cites W2066890973 @default.
• W3212654846 cites W2069562360 @default.
• W3212654846 cites W2074466617 @default.
• W3212654846 cites W2077956669 @default.
• W3212654846 cites W2080806591 @default.
• W3212654846 cites W2082145227 @default.
• W3212654846 cites W2084955401 @default.
• W3212654846 cites W2085480428 @default.
• W3212654846 cites W2086172946 @default.
• W3212654846 cites W2090020014 @default.
• W3212654846 cites W2093420400 @default.
• W3212654846 cites W2095454993 @default.
• W3212654846 cites W2098760073 @default.
• W3212654846 cites W2099979921 @default.
• W3212654846 cites W2100299486 @default.
• W3212654846 cites W2104875948 @default.
• W3212654846 cites W2106611473 @default.
• W3212654846 cites W2106967646 @default.
• W3212654846 cites W2114203981 @default.
• W3212654846 cites W2115035416 @default.
• W3212654846 cites W2117438620 @default.
• W3212654846 cites W2120674422 @default.
• W3212654846 cites W2134300245 @default.
• W3212654846 cites W2135832144 @default.
• W3212654846 cites W2139282257 @default.
• W3212654846 cites W2143061726 @default.
• W3212654846 cites W2146997704 @default.
• W3212654846 cites W2149600508 @default.
• W3212654846 cites W2151978486 @default.
• W3212654846 cites W2154624126 @default.
• W3212654846 cites W2157705758 @default.
• W3212654846 cites W2162439540 @default.
• W3212654846 cites W2162811155 @default.
• W3212654846 cites W2165053760 @default.

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