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SAMPLE INFO : UT506
Sample ID:UT506
Station ID:UT506
Latitude:64.717
Longitude:-148.45
Datum:NAD83
Sample Type 1:Tephra Fall
Text Description:
30 cm thick; fine grained and moderately to poorly sorted; in loess that mantles weathered schist (Westgate et al. 1983)

References:
Distribution, stratigraphy, petrochemistry and palaeomagnetism of the late Pleistocene Old Crow tephra in Alaska and the Yukon

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
UT50664.717-148.45Westgate, 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).No location description provided; in Westgate et al. (1983), sample UT739 is described as coming from a road cut along the north side of the Fairbanks-Nenana Highway, 3 km east of Halfway House; exposes loess with paleosols and two tephra beds above weathered schist (see Fig. 8 in Westgate et al. 1983).30 cm thick; fine grained and moderately to poorly sorted; in loess that mantles weathered schist (Westgate et al. 1983)UT506Tephra FallCumulateGlass 3.68 1792INAA2.32 3.5 1000 25.8 54.5 5.57 1 1 3.8 0.71 6.6 0.9 9.9 4.2 7.3 1792INAA

SAMPLE LOCATION

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