Show simple item record Preece, S. J. Pearce, N. J. G. Westgate, J. A. Froese, D. G. Jensen, B. J. L. Perkins, W. T. 2011-10-25T11:57:43Z 2011-10-25T11:57:43Z 2011-10-25
dc.identifier.citation Preece , S J , Pearce , N J G , Westgate , J A , Froese , D G , Jensen , B J L & Perkins , W T 2011 , ' Old Crow tephra across eastern Beringia : A single cataclysmic eruption at the close of Marine Isotope Stage 6 ' Quaternary Science Reviews , vol 30 , no. 17-18 , pp. 17-18 . DOI: 10.1016/j.quascirev.2010.04.020 en
dc.identifier.issn 0277-3971
dc.identifier.other PURE: 172000
dc.identifier.other PURE UUID: 10c9af41-3849-41ca-8055-800745496a12
dc.identifier.other dspace: 2160/7624
dc.identifier.other DSpace_20121128.csv: row: 4496
dc.identifier.other RAD: 4807
dc.identifier.other RAD_Outputs_All_ID_Import_20121105.csv: row: 2046
dc.identifier.other Scopus: 79954583709
dc.description Preece, S. J., Pearce, J. J. G., Westgate, J. A., Froese, D. G., Jensen, B. J. L., Perkins, W. T. (2011). Old Crow tephra across eastern Beringia: a single cataclysmic eruption at the close of Marine Isotope Stage 6. Quaternary Science Reviews, 30 (17-18), 2069-2090 (Special Issue). en
dc.description.abstract Old Crow tephra is the largest and most widespread Quaternary eruption presently known in eastern Beringia. Its major- and trace-element geochemistry, Fe-Ti oxides, and stratigraphic and paleoecological context indicate that it is the result of a single cataclysmic eruption. The proximal region may well have experienced tephra fallout from small eruptions just prior to or after the Old Crow event, but there is no evidence to indicate that the distal area was affected. We recalculate the glass fission-track age at 124 ± 10 ka, which, coupled with stratigraphic and paleoenvironmental reconstructions, indicates that deposition occurred prior to development of the last interglacial boreal forest, which suggests a latest Marine Isotope Stage (MIS) 6 age. The bulk tephra volume erupted is estimated by three different approaches, that are in broad agreement at ∼200 km3, but this result must be considered as tentative given the poor controls on definition of isopachs over such a large area. The source caldera, although presently unrecognized, is located in the eastern Aleutian arc, possibly at or near the Emmons Lake volcanic center. en
dc.format.extent 2 en
dc.language.iso eng
dc.relation.ispartof Quaternary Science Reviews en
dc.rights en
dc.title Old Crow tephra across eastern Beringia : A single cataclysmic eruption at the close of Marine Isotope Stage 6 en
dc.type /dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article en
dc.contributor.institution Department of Geography and Earth Sciences en
dc.contributor.institution Quaternary Environmental Change Group en
dc.description.status Peer reviewed en

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search Cadair

Advanced Search