AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > UT1805

SAMPLE INFO : UT1805
Sample ID:UT1805
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. Cccurs within loess between the 2 lowermost organic-rich silt beds (Westgate et al.,2009).

References:
Gold Run Tephra: a middle Pleistocene stratigraphic and paleoenvironmental marker across west-central Yukon Territory, 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
Thistle_Creek63.06-139.32Westgate, J. A. 124000 ± 10000 known unit; 10271; 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. Cccurs within loess between the 2 lowermost organic-rich silt beds (Westgate et al.,2009).UT1805Tephra FallCumulateGlass 75.48 0.3 13.01 1.74 0.07 0.29 1.55 3.62 3.66 10271EMP1.74Cl=0.29; H2O=5.1EMP 4.08 99 1038 167 25.5 52.9 6.1 25.1 6.04 1.03 5.18 0.91 5.63 1.32 3.52 0.59 3.44 0.55 35.5 243 7.08 9.82 4.17 6.14 10271ICPMS
Thistle_Creek63.06-139.32Westgate, J. A. 124000 ± 10000 known unit; 10271; 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. Cccurs within loess between the 2 lowermost organic-rich silt beds (Westgate et al.,2009).UT1805Tephra FallCumulateGlass 75.48 0.3 13.01 1.74 0.29 1.55 3.62 3.66 6782EMP1.74Cl=0.29; H2O=5.1EMP

SAMPLE LOCATION

Contact AVO Privacy Accessibility Information Quality FOIA
URL: avo.alaska.edu/samples/sample_info.php
Page modified: August 1, 2017 15:29
Contact Information: AVO Web Team

twitter @alaska_avo
facebook alaska.avo
email Receive volcano updates by email: USGS VNS

This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137

Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.