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SAMPLE INFO : UT1053
Sample ID:UT1053
Station ID:Preece_2000_site_15
Latitude:63.816
Longitude:-139.058
Datum:NAD83
Sample Type 1:Tephra Fall
 Text Description:
From Preece et al. (2000): maximum thickness of 2 cm. Tephra bed is from a dipping sequence containing gravel, crossbedded sands and silts. Tephra has sharp contacts with enclosing sediment; locally, drapes into icewedge casts. From Preece et al. (2011): pumice with trace amount of blocky grains; in colluvial phase of Upper White Channel Gravel; locally drapes into ice-wedge cast Near top of White Channel Gravel; field name GL97-36. Sample taken by A. Alloway, 1990.

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
Glass-fission-track ages of late Cenozoic distal tephra beds in the Klondike district, Yukon Territory

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_1563.816-139.058Preece, S. J. 3000000 ± 330000 known unit; 10321; Age is approximate. Date obtained from sample UT1001; Sandhu and others (2001).2 m of massive fluvial gravel that is separated by a bedrock high from the more extensive, and slightly lower, colluviated facies of the Upper White Channel gravel. Located 35 km southeast of Dawson City near the confluence of the Little Blanche and Quartz creeks, Yukon Territory, Canada. Sequence containing gravel, crossbedded sands and silts. Datum not specified, assumed to be NAD83.From Preece et al. (2000): maximum thickness of 2 cm. Tephra bed is from a dipping sequence containing gravel, crossbedded sands and silts. Tephra has sharp contacts with enclosing sediment; locally, drapes into icewedge casts. From Preece et al. (2011): pumice with trace amount of blocky grains; in colluvial phase of Upper White Channel Gravel; locally drapes into ice-wedge cast Near top of White Channel Gravel; field name GL97-36. Sample taken by A. Alloway, 1990.UT1053Tephra FallCumulateGlass 0.15 10301ICPMS 1.98 77.8 912 275 20.9 40.9 3.9 14 1.94 0.59 2.21 0.3 1.48 0.33 0.93 0.15 1 0.16 9.26 98.2 4.46 3.67 0.72 13.4 6.78 2.21 1.96 16.4 3.51 1.87 5.54 21.7 10301ICPMS

SAMPLE LOCATION

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