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Sample ID:UT1730
Station ID:Eva_II
Sample Type 1:Tephra Fall
Text Description:
18 cm thick. Pods of tephra within Upper Gold Hill Loess about 1.5 m below Eva Forest Bed (Preece et al., 1999).

Late Pliocene Dawson Cut forest bed and new tephrochronological findings in the Gold Hill Loess, east-central Alaska
A catalogue of late Cenozoic tephra beds in the Klondike Goldfields and adjacent areas, Yukon Territory
Old Crow tephra across eastern Beringia: a single cataclysmic eruption at the close of Marine Isotope Stage 6

StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2Final UnitMaterialCoeffSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-majorsREF majorsMETH majorsFe2O3/Fe203T origFeO/FeOT origVolatiles csvMETH volatilesCsRbBaSrLaCePrNdSmEuGdTbDyHoErTmYbLuYZrNbHfTaPbThUScVCrFeCoNiCuZnGaMoAsNaKRef trace1METH trace1RbBaSrLaCeNdSmEuGdDyErYbLuYZrNbPbThUScTiVCrNiCuZnGaRef trace2METH trace2Light csvHalogen csvother major csvother lile csvother ree csvother hfse csvother hpe csvother tm csvother misc csv
Eva_II64.8516-148.015Preece, S. J. 124000 ± 10000 known unit; 10271; Age is approximate. Revised glass fission-track age with re-calibration; four Old Crow Tephra sample glass fission-track ages (UT1434, UT613, UT501, UT613).Exposure on the west side of EVA Creek mining cut, Ester, Alaska; Gold Hill Loess overlies the Dawson Cut Formation and is unconformably covered by the interglacial Eva Forest Bed. Location coordinates from Preece et al. (2011); datum not specified, assumed to be NAD83.18 cm thick. Pods of tephra within Upper Gold Hill Loess about 1.5 m below Eva Forest Bed (Preece et al., 1999).UT1730Tephra FallCumulateGlass 4.18 105 898 143 24.3 53 5.76 23.8 5.64 0.89 4.81 0.9 5.41 1.27 3.46 0.56 3.65 0.57 35.6 259 6.91 9.11 4.07 6.1 10271ICPMS


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