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Sample ID:UA1784-P1
Station ID:LS-A
Sample Type 1:Tephra Fall
Text Description:
398.5 cm bottom depth in core (tube-depth, not tephra-free depth); 0.5 cm thick; fine sandy tephra; mixed morphology; light gray.

Late glacial and Holocene glacier and vegetation fluctuations at Little Swift Lake, Southwestern Alaska, U.S.A.
Late Quaternary tephrostratigraphy, Ahklun Mountains, SW 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
LS-A60.21-159.75998Kaufman, D. S. 7995 ± 316 14C AMS; 7993; Age is approximate. Derived from age model in Kaufman and others (2012).Lacustrine core from Little Swift Lake in the Ahklun Mountains, southwest Alaska. Little Swift Lake is a small (0.7 km 2 surface area), 24-m deep drift-impounded basin capturing the drainage of a deeply carved; 10-km-long glacial valley. The drainage basin has no glaciers today, but extant glaciers occupy cirques 15 km to the southeast. See Axford and Kaufman (2004) for detailed description.398.5 cm bottom depth in core (tube-depth, not tephra-free depth); 0.5 cm thick; fine sandy tephra; mixed morphology; light gray.UA1784-P1Tephra FallCumulateGlass 67.05 0.83 15.1 5.25 0.17 0.91 2.97 5 2.56 Reported standard deviation of zero. 1007993EMP5.25Cl=0.16; H2O=3.95EMP


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