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SAMPLE INFO : UT707
Sample ID:UT707
Station ID:Trader_Mountain
Latitude:55.5
Longitude:-161.9
Datum:NAD83
Sample Type 1:Tephra Fall
Sample Type 2:Pumice
Text Description:
Given the location and compositional similarity to Dawson tephra, the pumice clast is presumed to be part of the C2 caldera forming eruption of ELVC.

References:
Tephrostratigraphy of the late Cenozoic Gold Hill loess, Fairbanks area, Alaska
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
Trader_Mountain55.5-161.9Unknown, Unknown -24050--Large clasts collected from the flanks of Trader Mountain, located on the SW Alaska Peninsula about 15 km north of the caldera rim of Emmons Lake volcanic center (ELVC). No coordinates provided so generic location selected on Trader Mountain.Given the location and compositional similarity to Dawson tephra, the pumice clast is presumed to be part of the C2 caldera forming eruption of ELVC.UT707Tephra FallCumulateGlass 74.38 0.29 14.2 1.99Reported analytical value of zero. Reported standard deviation value of zero. 0Reported analytical value of zero. Reported standard deviation value of zero. 0 1.46 4.04 3.48 93.5256EMP1.99Cl=0.18EMP 4.02 70.2 721 180 19.9 47.6 5.85 25.1 6.94 1.08 5.87 1.14 6.93 1.71 4.63 0.64 4.21 0.67 45.9 259 6.07 6.93 0.45 6.41 3.02 10271ICP
Trader_Mountain55.5-161.9Unknown, Unknown -24050--Large clasts collected from the flanks of Trader Mountain, located on the SW Alaska Peninsula about 15 km north of the caldera rim of Emmons Lake volcanic center (ELVC). No coordinates provided so generic location selected on Trader Mountain.Given the location and compositional similarity to Dawson tephra, the pumice clast is presumed to be part of the C2 caldera forming eruption of ELVC.UT707Tephra FallCumulateGlass 74.11 0.26 13.73 2.08 0.08 0.22 1.25 4.39 3.67 10271EMP2.08Cl=0.22; H2O=3.73EMP

SAMPLE LOCATION

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Page modified: August 1, 2017 15:29
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