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dc.contributor.authorMacdonald, Francis Alexander
dc.contributor.authorCohen, Phoebe
dc.contributor.authorDudas, Francis Ő.
dc.contributor.authorSchrag, Daniel P.
dc.date.accessioned2017-08-04T15:38:31Z
dc.date.issued2010
dc.identifier.citationMacdonald, F. A., P. A. Cohen, F. O. Dudas, and D. P. Schrag. 2010. “Early Neoproterozoic Scale Microfossils in the Lower Tindir Group of Alaska and the Yukon Territory.” Geology 38 (2) (February 1): 143–146. doi:10.1130/g25637.1.en_US
dc.identifier.issn0091-7613en_US
dc.identifier.issn1943-2682en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:33717508
dc.description.abstractThe Tindir Group is a <4-km-thick Neoproterozoic succession exposed in the Tatonduk inlier of east-central Alaska and the western Yukon Territory. The Tindir Group is informally divided into the Lower Tindir Group, which consists of <2 km of mixed carbonate and clastic rocks, and the overlying Upper Tindir Group, which contains two Cryogenian glacial deposits and an additional Ediacaran succession of mixed carbonate and clastic strata. Unique mineralized scale microfossils have been recovered from sections previously correlated with the Upper Tindir Group, and interpreted variously as Cryogenian to early Cambrian in age. Our remapping of the area indicates that these sections are stratigraphically below an early Cryogenian glacial diamictite, unit 2 of the Upper Tindir Group, and are actually part of the Lower Tindir Group. Carbon and strontium isotope correlations further suggest that the fossiliferous Lower Tindir Group is correlative with early Neoproterozoic strata of the northwestern Canadian Cordillera. This new age model is consistent with the accompanying microfossil assemblage and indicates that the diverse microfossils in the Lower Tindir Group can be added to the early Neoproterozoic record of eukaryotic evolution.en_US
dc.description.sponsorshipEarth and Planetary Sciencesen_US
dc.description.sponsorshipEngineering and Applied Sciencesen_US
dc.language.isoen_USen_US
dc.publisherGeological Society of Americaen_US
dc.relation.isversionofdoi:10.1130/G25637.1en_US
dc.relation.hasversionhttp://francismacdonald.fas.harvard.edu/files/fmacdonald/files/2010_early_neoproterozoic.pdfen_US
dash.licenseMETA_ONLY
dc.titleEarly Neoproterozoic scale microfossils in the Lower Tindir Group of Alaska and the Yukon Territoryen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalGeologyen_US
dash.depositing.authorMacdonald, Francis Alexander
dash.embargo.until10000-01-01
dc.identifier.doi10.1130/G25637.1*
workflow.legacycommentsFAR 2011 Macdonald emailed 2016-05-04 AD Macdonald emailed 2017-02-24 MM meta.darken_US
dash.contributor.affiliatedCohen, Phoebe A
dash.contributor.affiliatedMacdonald, Francis
dash.contributor.affiliatedSchrag, Daniel


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