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SAMPLE INFO : UT1823
Sample ID:UT1823
Station ID:Thistle_Creek
Latitude:63.06
Longitude:-139.32
Datum:NAD83
Sample Type 1:Tephra Fall
Text Description:
1.5 to 15 cm thick. Sections at Thistle Creek contain 3 organic-rich silt beds intercalated with loess. Oct occurs within loess between the 2 lowermost organic-rich silt beds (Westgate et al., 2009).

References:
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
Thistle_Creek63.06-139.32Westgate, J. A. 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).The Thistle Creek section is about 100 km south of Dawson City, Yukon Territory, Canada, in the south Klondike goldfields. It consists of a 10 m thick organic-rich silt sequence over gravel on a terrace 25 m above Thistle Creek on the south side of the valley. Coordinates from Westgate and others (2009); datum not provided, assumed to be NAD83. Coordinates for this site in Preece and others (2011), Jensen and others (2011), and Reyes and others (2010) vary slightly. Also known as Eddas Bench.1.5 to 15 cm thick. Sections at Thistle Creek contain 3 organic-rich silt beds intercalated with loess. Oct occurs within loess between the 2 lowermost organic-rich silt beds (Westgate et al., 2009).UT1823Tephra FallCumulateGlass 75.25 0.3 13.07 1.71 0.05 0.28 1.51 3.82 3.73 10271EMP1.71Cl=0.29; H2O=4.45EMP 4.42 103 1002 135 25.3 53.8 6.01 24.6 5.9 1 5.39 0.97 5.57 1.37 3.69 0.57 3.75 0.61 35.2 255 7.5 10.91 4.68 5.71 10271ICPMS

SAMPLE LOCATION

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Page modified: August 1, 2017 15:29
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