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SAMPLE INFO : Ahklun Mountains-Tephra-D_average
Sample ID:Ahklun Mountains-Tephra-D_average
Station ID:Ahklun_Mountains_Regional_Tephra
Sample Type 1:Tephra Fall
Text Description:
Tephra present in Arolik Lake (Kaufman et al. 2003) (UA1781). Tephra D contains highly vesicular pumice and lacks tricuspate and bubble-wall shards.

Late Quaternary tephrostratigraphy, Ahklun Mountains, SW Alaska
A 33,000 year record of environmental change from Arolik Lake, Ahklun Mountains, Alaska

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
Ahklun_Mountains_Regional_Tephra59.6-160.39998Kaufman, D. S. 15505 ± 312 14C AMS; 7993; Age is approximate. Mean age derived from age model (using AMS dates) from dates in multiple lacustrine cores, in Kaufman and others (2012).-13660--Ahklun Mountains, southwest Alaska; glass compositions are averages calculated from analyses of multiple correlated tephra present in lacustrine cores from the area. Individual sample IDs (analyses of which contribute to the average tephra bed composition) are noted in the sample descriptions.Tephra present in Arolik Lake (Kaufman et al. 2003) (UA1781). Tephra D contains highly vesicular pumice and lacks tricuspate and bubble-wall shards. Ahklun Mountains-Tephra-D_averageTephra FallCumulateGlass 61.34 1.24 16.38 7.1 0.18 2.28 5.18 4.47 1.75 7993EMP7.1Cl=0.12; H2O=1.86EMP


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