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SAMPLE INFO : UT92
Sample ID:UT92
Station ID:Preece_2000_site_3
Latitude:64.011
Longitude:-139.1
Datum:NAD83
Date Sampled:1979-01-01
Sample Type 1:Tephra Fall
 Text Description:
Maximum thickness of 8 cm. Tephra layer is located 5.4 m above the top of the imbricated gravels. Additional unsampled tephra beds occurred at 5.8 m and 6.5 m above the imbricated gravels. From Preece et al. (2011): pumice; in 4.1 m of stony silt, sand, and gravel with peaty horizons overlying 1.2 m peat and tree stems. Underlying the peat is 2 m of laminated, brown, organic, clay-rich silt, which is underlain by 2 m of sand and imbricated gravel. Tephra is located 5.4 m above the top of the imbricated gravel; field name MBFT-1.

References:
Characterization, identity, distribution, and source of late Cenozoic tephra beds in the Klondike District of the Yukon, Canada
The Palisades is a key reference site for the middle Pleistocene of eastern Beringia: new evidence from paleomagnetics and regional tephrostratigraphy
A catalogue of late Cenozoic tephra beds in the Klondike Goldfields and adjacent areas, Yukon Territory
The application of ICP-MS methods to tephrochronological problems

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
Preece_2000_site_364.011-139.1McAtee, C.1979-01-01> 32000 known unit; 10421; 14C age of wood (BGS-587) and peat (BGS-594) associated with Last Chance Creek tephra at the Miben-2 cut (from McAtee 1979).Hunker Creek, Yukon Territory, Canada. Site 3 of Preece et al. (2000). At MIBEN-2 cut in 4.1 m of stony silt, sand and gravel with peaty horizons overlying 1.2 m peat and tree stems. Underlying the peat is 2 m of laminated, brown, organic, clay-rich silt with peat, plant stems, wood and peat. Brown silt is underlain by 2 m of sand and imbricated gravel. Additional unsampled tephra beds occurred at 5.8 m and 6.5 m above the imbricated gravels. This valley bottom section was destroyed during placer mining operations. Coordinates from Preece et al. (2011). Datum not specified, assumed to be NAD83.Maximum thickness of 8 cm. Tephra layer is located 5.4 m above the top of the imbricated gravels. Additional unsampled tephra beds occurred at 5.8 m and 6.5 m above the imbricated gravels. From Preece et al. (2011): pumice; in 4.1 m of stony silt, sand, and gravel with peaty horizons overlying 1.2 m peat and tree stems. Underlying the peat is 2 m of laminated, brown, organic, clay-rich silt, which is underlain by 2 m of sand and imbricated gravel. Tephra is located 5.4 m above the top of the imbricated gravel; field name MBFT-1.UT92Tephra FallCumulateGlass 0.17 10301ICPMS 1.46 57.5 844 521 20.7 39 3.74 14.1 2.39 0.67 2.12 0.25 1.35 0.28 0.81 0.12 0.68 0.12 8.68 122 6.87 3.35 0.6 7.89 4.07 1.89 1.89 14.5 1.68 1.86 1.88 26.2 10301ICPMS

SAMPLE LOCATION

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