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SAMPLE INFO : UA565
Sample ID:UA565
Station ID:UA565
Latitude:61.6696
Longitude:-139.75998
Datum:NAD83
Sample Type 1:Tephra Fall
Text Description:
Middle 30-cm-thick tephra bed separated from WRA-N by 30 cm of peat; 12 B is from base of the deposit; see Figure 8. Identifi ed as WRA-E by Lerbekmo et al. (1975); composition of ilmenites in this sample reported in Lerbekmo et al. (1975).

References:
Chemical complexity and source of the White River Ash, Alaska and 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
UA56561.6696-139.75998Preece, S. J. 1147 known unit; 2877; Age is approximate. Mean age of east lobe of White River Ash, determined from four 14C ages on stumps buried in tephra. Reported by Clague and others (1995).803--Near intersection of Donjek River and the Alcan Highway, CanandaMiddle 30-cm-thick tephra bed separated from WRA-N by 30 cm of peat; 12 B is from base of the deposit; see Figure 8. Identifi ed as WRA-E by Lerbekmo et al. (1975); composition of ilmenites in this sample reported in Lerbekmo et al. (1975).UA565Tephra FallCumulateGlass 73.6 0.21 14.54 1.66 0.07 0.39 1.97 4.13 3.09 9121EMP1.66Cl=0.35; H2O=2.88EMP 1.32 67.1 1204 698 26.4 40.2 4.96 19.3 2.92 0.78 2.46 0.29 1.88 0.34 1.08 0.14 1.26 0.19 9.64 224 6.97 6.04 0.68 22.5 7.76 2.93 9121ICPMS

SAMPLE LOCATION

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