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SAMPLE INFO : UT718
Sample ID:UT718
Station ID:UT718
Latitude:66.1847
Longitude:-155.6847
Datum:NAD83
Sample Type 1:Tephra Fall
Text Description:
1 to 25 cm thick. Tephra bed within loess a few centimeters above prominent peat layer with abundant Picea pollen(Hamilton and Brigham-Grette, 1991).

References:
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

GEOCHEM DATA
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
UT71866.1847-155.6847Unknown, Unknown 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).Hogatza Mine, Alaska. Datum not specified, assumed to be NAD83. 1 to 25 cm thick. Tephra bed within loess a few centimeters above prominent peat layer with abundant Picea pollen(Hamilton and Brigham-Grette, 1991).UT718Tephra FallCumulateGlass 75.4 0.31 13.1 1.72 0.04 0.28 1.45 3.75 3.64 10271EMP1.72Cl=0.3; H2O=5.25EMP 4.24 97 966 130 24.7 52.2 5.86 24 5.73 0.96 5.12 0.89 5.39 1.27 3.49 0.54 3.54 0.53 32.9 240 6.54 8.97 3.89 5.73 10271ICPMS

SAMPLE LOCATION

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