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SAMPLE INFO : UT524
Sample ID:UT524
Station ID:UT524
Latitude:64.2938
Longitude:-146.3238
Datum:NAD83
Sample Type 1:Tephra Fall
Text Description:
6 to 22 cm thick; fine grained and moderately to poorly sorted; in loess-aeolian sand deposit of probable Delta age (Pewe and Reger 1983)

References:
Distribution, stratigraphy, petrochemistry and palaeomagnetism of the late Pleistocene Old Crow tephra in Alaska and the Yukon
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
UT52464.2938-146.3238Westgate, J. A. 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).Sample from mile 293 north of Delta Junction, off the Richardson Highway. Location coordinates from Preece et al. (2011). Datum not specified, assumed to be NAD83.6 to 22 cm thick; fine grained and moderately to poorly sorted; in loess-aeolian sand deposit of probable Delta age (Pewe and Reger 1983)UT524Tephra FallCumulateGlass 3.37 1792INAA2.12 3.1 1000 23.5 50.1 26 5.04 0.9 0.7 3.4 0.57 6.4 0.9 9.1 3.7 6.8 1792INAA
UT52464.2938-146.3238Westgate, J. A. 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).Sample from mile 293 north of Delta Junction, off the Richardson Highway. Location coordinates from Preece et al. (2011). Datum not specified, assumed to be NAD83.6 to 22 cm thick; fine grained and moderately to poorly sorted; in loess-aeolian sand deposit of probable Delta age (Pewe and Reger 1983)UT524Tephra FallCumulateGlass 75.34 0.31 13.22 1.71 0.07 0.28 1.44 3.71 3.64 10271EMP1.71Cl=0.27; H2O=4.94EMP 4.28 101 981 136 25.3 54.3 6.08 24.9 5.9 0.95 5.43 0.94 5.57 1.36 3.73 0.58 3.76 0.61 34.9 252 7.12 10.96 4.88 5.98 10271ICPMS

SAMPLE LOCATION

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