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SAMPLE INFO : UA1679
Sample ID:UA1679
Station ID:Alyeska_Pipeline_Viewing_Area
Latitude:64.9
Longitude:-147.59997
Datum:NAD83
Sample Type 1:Tephra Fall
Text Description:
The tephra is found within a cryoturbated organic-rich silt and peat. Large detrital logs with ringporous anatomy were collected above the tephra sample. Overlying the APt tephra is six m of silt and than a ~10 cm thick bed of angular pebbels, granules, and oxidized silt that Jensen and others (2013) interpret as an unconformity. Three m above the unformity is the the Sheep Creek-F tephra.

References:
The Palisades is a key reference site for the middle Pleistocene of eastern Beringia: new evidence from paleomagnetics and regional tephrostratigraphy

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
Alyeska_Pipeline_Viewing_Area64.9-147.59997Unknown, Unknown Alyeska Pipeline viewing area on the Steese Highway near Fairbanks. Exposure that is ~13 m high, consisting of interbedded organic units and loess. Reference locality for the Alyeska Pipeline tephra. Coordinates not provided, location in database is roughly approximated based on description in publication.The tephra is found within a cryoturbated organic-rich silt and peat. Large detrital logs with ringporous anatomy were collected above the tephra sample. Overlying the APt tephra is six m of silt and than a ~10 cm thick bed of angular pebbels, granules, and oxidized silt that Jensen and others (2013) interpret as an unconformity. Three m above the unformity is the the Sheep Creek-F tephra.UA1679Tephra FallCumulateGlass 78.19 0.21 12.22 1.22 0.05 0.2 1.23 4.11 2.41 9361EMP1.22Cl=0.16; H2O=6.12EMP

SAMPLE LOCATION

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