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SAMPLE INFO : UT17
Sample ID:UT17
Station ID:Klondike_Site
Latitude:64.005
Longitude:-139.086
Datum:NAD83
Date Sampled:1975-01-01
Sample Type 1:Tephra Fall
Text Description:
Maximum thickness of 10 cm. 1 m long lens at the base of 10 m of muck overlying 1 m of gravel. In July, UT14 was exposed at a similar horizon to UT17. Bubble-wall shards and lesser amounts of pumice. Field name MWM4.

References:
Characterization, identity, distribution, and source of late Cenozoic tephra beds in the Klondike District of the Yukon, Canada
A catalogue of late Cenozoic tephra beds in the Klondike Goldfields and adjacent areas, Yukon Territory
Old Crow tephra across eastern Beringia: a single cataclysmic eruption at the close of Marine Isotope Stage 6

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
Klondike_Site64.005-139.086Milner, M. W.1975-01-01 124000 ± 10000 known unit; 10271; Age is approximate. Revised glass fission-track age with re-calibration; four Old Crow Tephra sample glass fission-track ages (UT1434, UT613, UT501, UT613).Hunker Creek, Yukon Territory, Canada. Site 4 of Preece et al. (2000). 10 m of muck containing mammal fossils overlying 1 m of gravel; isolated cobbles of White Channel gravels overlying columnar jointed lavas. This section was destroyed during placer mining opration. Coordinates from Preece et al. (2011). Datum not specified, assumed to be NAD83.Maximum thickness of 10 cm. 1 m long lens at the base of 10 m of muck overlying 1 m of gravel. In July, UT14 was exposed at a similar horizon to UT17. Bubble-wall shards and lesser amounts of pumice. Field name MWM4.UT17Tephra FallCumulateGlass 75.28 0.27 13.04 1.79 0.04 0.27 1.5 3.78 3.74 10271EMP1.79Cl=0.28; H2O=4.16EMP 5.01 114 1062 25.32 61.8 27.2 5.87 0.95 1.01 4.35 0.63 7.47 0.89 11.56 3.87 6.99 40 990INAA
Klondike_Site64.005-139.086Milner, M. W.1975-01-01 124000 ± 10000 known unit; 10271; Age is approximate. Revised glass fission-track age with re-calibration; four Old Crow Tephra sample glass fission-track ages (UT1434, UT613, UT501, UT613).Hunker Creek, Yukon Territory, Canada. Site 4 of Preece et al. (2000). 10 m of muck containing mammal fossils overlying 1 m of gravel; isolated cobbles of White Channel gravels overlying columnar jointed lavas. This section was destroyed during placer mining opration. Coordinates from Preece et al. (2011). Datum not specified, assumed to be NAD83.Maximum thickness of 10 cm. 1 m long lens at the base of 10 m of muck overlying 1 m of gravel. In July, UT14 was exposed at a similar horizon to UT17. Bubble-wall shards and lesser amounts of pumice. Field name MWM4.UT17Tephra FallCumulateGlass 75.45 0.27 12.98 1.78 0.06 0.27 1.5 3.76 3.72 990EMP1.78Cl=0.22; H2O=3.72EMP 4.21 105 1043 144 24.5 53.1 5.78 23.5 5.58 0.93 4.77 0.89 5.38 1.26 3.47 0.56 3.57 0.57 34.1 252 6.81 9.24 4.14 6.09 10271ICPMS

SAMPLE LOCATION

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