DOI: 10.33915/etd.5625
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Insights into the Assembly of Arctic Alaska: Provenance and Geochemical Data from the Doonerak Fenster and Endicott Mountains Allochthon

Abstract: The Doonerak fenster of the central Brooks Range contains the Apoon assemblage, a suite of Early Paleozoic mafic-to-intermediate volcanic and siliciclastic rocks. The fenster exposes deep structural levels of the Brooks Range between regions of Laurentian and non-Laurentian origin in Arctic Alaska. During the Mesozoic to Cenozoic formation of the Brooks Range, Upper Devonian to Triassic siliciclastic and carbonate rocks of the Endicott Mountains allochthon were thrusted northward and juxtaposed over the top of… Show more

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Cited by 1 publication
(6 citation statements)
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“…Subsequent mapping was completed at the more accessible eastern end of the anticline adjacent to the Dalton Highway at the 1:63,360 scale as part of the Trans-Alaska Crustal Transect (TACT) project (Moore et al, 1997) and the 1:36360 scale by Phelps (1987) and Julian (1989). More recent work in the study area has included geochemical and geochronological sampling, but no major revisions to previous maps (Frier, 2017;Strauss et al, 2017).…”
Section: Prior Workmentioning
confidence: 99%
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“…Subsequent mapping was completed at the more accessible eastern end of the anticline adjacent to the Dalton Highway at the 1:63,360 scale as part of the Trans-Alaska Crustal Transect (TACT) project (Moore et al, 1997) and the 1:36360 scale by Phelps (1987) and Julian (1989). More recent work in the study area has included geochemical and geochronological sampling, but no major revisions to previous maps (Frier, 2017;Strauss et al, 2017).…”
Section: Prior Workmentioning
confidence: 99%
“…The 2015 field season targeted the northern margin of the structure at the contact between the Apoon assemblage, Ellesmerian sequence, and Endicott Mountains allochthon. This first season was principally for the thesis work of W. P. Frier (2017). I served as field assistant, but the 2015 data and observations were integrated with those from the 2016 season for this work.…”
Section: Field Mappingmentioning
confidence: 99%
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