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SAMPLE INFO : UT788
Sample ID:UT788
Station ID:West_Ridge
Latitude:64.9
Longitude:-147.8
Datum:NAD83
Sample Type 1:Tephra Fall
Field Epoch Guess:Oligocene
Text Description:
Discontinuous bed ranging from 2 to 10 cm thick. Occurs in pods that are interbedded with banded to platy, grey to brown silt with oxidation stringers and bands. Faint lamination in the darker, basal part of the tephra. Upper and lower contacts are sharp although there is localized interdigitation with loess. Oxidatation common.

References:
Tephrostratigraphy of the late Cenozoic Gold Hill loess, Fairbanks area, Alaska
Tephrochronology of late Cenozoic loess at Fairbanks, central Alaska
Age of Sheep Creek Tephra (Pleistocene) in central Alaska from thermoluminescence dating of bracketing loess
Late Pliocene Dawson Cut forest bed and new tephrochronological findings in the Gold Hill Loess, east-central Alaska
Recurring middle Pleistocene outburst floods in east-central Alaska

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
West_Ridge64.9-147.8Preece, S. J. Small road cut on the West Ridge of the University of Alaska, Fairbanks campus. Location imprecisely georeferenced from Figure 4 in Preece et al. (1999). Discontinuous bed ranging from 2 to 10 cm thick. Occurs in pods that are interbedded with banded to platy, grey to brown silt with oxidation stringers and bands. Faint lamination in the darker, basal part of the tephra. Upper and lower contacts are sharp although there is localized interdigitation with loess. Oxidatation common.UT788Tephra FallCumulateGlass 70.71 0.52 14.5 3.7 0.18Reported analytical value of zero. Reported standard deviation value of zero. 0 2.08 4.43 3.88 95.1656EMP3.7Cl=0.17EMP
West_Ridge64.9-147.8Preece, S. J. Small road cut on the West Ridge of the University of Alaska, Fairbanks campus. Location imprecisely georeferenced from Figure 4 in Preece et al. (1999). Discontinuous bed ranging from 2 to 10 cm thick. Occurs in pods that are interbedded with banded to platy, grey to brown silt with oxidation stringers and bands. Faint lamination in the darker, basal part of the tephra. Upper and lower contacts are sharp although there is localized interdigitation with loess. Oxidatation common.UT788Tephra FallCumulateGlass 70.48 0.54 14.47 3.33 0.1 0.51 1.96 4.57 3.84 10291EMP3.33Cl=0.21; H2O=3.39EMP
West_Ridge64.9-147.8Preece, S. J. Small road cut on the West Ridge of the University of Alaska, Fairbanks campus. Location imprecisely georeferenced from Figure 4 in Preece et al. (1999). Discontinuous bed ranging from 2 to 10 cm thick. Occurs in pods that are interbedded with banded to platy, grey to brown silt with oxidation stringers and bands. Faint lamination in the darker, basal part of the tephra. Upper and lower contacts are sharp although there is localized interdigitation with loess. Oxidatation common.UT788Tephra FallCumulateGlass 70.71 0.52 14.5 3.7 0.18 2.08 4.43 3.88 996EMP3.7Cl=0.17; H2O=4.84EMP

SAMPLE LOCATION

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