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SAMPLE INFO : Blackford_2014_1
Sample ID:Blackford_2014_1
Station ID:Blackford_2014_1
Latitude:66.47522
Longitude:-163.941407
Datum:NAD83
Sample Type 1:Tephra Fall
Text Description:
Undulating layer of greyish colored tephra that varies between 3-12 mm in thickness, but is on average 4-5 mm thick. Consists of vesicular and platy glass shards <100 microns in length. Between 300 and 400 mm below peat surface.

References:
Age and impacts of the caldera-forming Aniakchak II eruption in western Alaska

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2Geologic 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
Blackford_2014_166.47522-163.941407Unknown, Unknown< 3270 ± 40 14C; 9041; Lab ID: GrA-28718, macrofossils dated. Radiocarbon sample from 0-5mm above tephra.Espenberg-1480--Exposure of peat at the margin of a small lake in the northern Seward Peninsula of western Alaska, near Cape Espenberg. Undulating layer of greyish colored tephra that varies between 3-12 mm in thickness, but is on average 4-5 mm thick. Consists of vesicular and platy glass shards <100 microns in length. Between 300 and 400 mm below peat surface.Blackford_2014_1Tephra FallCumulateGlass 74.34 0.49 15.47 2.56 0.15 0.55 1.84 4.73 3.22 96.789041EMP2.56

SAMPLE LOCATION

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Page modified: August 1, 2017 15:29
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