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SAMPLE INFO : ACT-726
Sample ID:ACT-726
Station ID:ACT-726
Latitude:66.2
Longitude:-165.2
Datum:NAD83
Sample Type 1:Tephra Fall
Text Description:
1 cm thick, located at 520 cm depth in lacustrine core. Abundant orthopyroxene, lesser amounts of clinopyroxene and amphibole (horneblend). Clear glass shards on average 50 microns in diameter, consisting largely of bubble wall junctions and platey glass shards, although blocky and pumiceous shards are also present.

References:
Age, extent, and climatic significance of the c. 3400 BP Aniakchak tephra, western Alaska, USA

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
ACT-72666.2-165.2Beget, J. E. -1480--Imprecise georeference from Figure 1 in Beget et al. (1992). Whitefish Lake, central Seward Peninsula1 cm thick, located at 520 cm depth in lacustrine core. Abundant orthopyroxene, lesser amounts of clinopyroxene and amphibole (horneblend). Clear glass shards on average 50 microns in diameter, consisting largely of bubble wall junctions and platey glass shards, although blocky and pumiceous shards are also present. ACT-726Tephra FallCumulateGlass 71.36 0.48 15.05 0.51 1.75 5.18 2.87 7443EMP2.63Cl=0.18EMP

SAMPLE LOCATION

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