AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > UT361

SAMPLE INFO : UT361
Sample ID:UT361
Station ID:UT361
Latitude:65.633
Longitude:-138.133
Datum:NAD83
Sample Type 1:Tephra Fall
 Text Description:
< 1 cm thick; fine grained and moderately to poorly sorted; in organic silts above similar material with large ice-wedge casts

References:
Discovery of a large-magnitude, late Pleistocene volcanic eruption in Alaska
Distribution, stratigraphy, petrochemistry and palaeomagnetism of the late Pleistocene Old Crow tephra in Alaska and the Yukon
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
UT36165.633-138.133Westgate, 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).Sequence is on high terrace of Ogilvie River, Yukon Territory, Canada; it is below general pediment surface in area but above supposed "Reid" terrace (V. Rampton, written communication, 1982)< 1 cm thick; fine grained and moderately to poorly sorted; in organic silts above similar material with large ice-wedge castsUT361Tephra FallCumulateGlass 3.75 1792INAA2.05 22.3 42 22 6.9 0.84 0.97 1.7 3.9 0.81 6.2 5.7 3.8 7.2 1183INAA
UT36165.633-138.133Westgate, 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).Sequence is on high terrace of Ogilvie River, Yukon Territory, Canada; it is below general pediment surface in area but above supposed "Reid" terrace (V. Rampton, written communication, 1982)< 1 cm thick; fine grained and moderately to poorly sorted; in organic silts above similar material with large ice-wedge castsUT361Tephra FallCumulateGlass 4.9 1000 23.2 45.6 26 6.88 0.8 1 3.9 0.81 6.2 8.1 3.8 8.3 1792INAA

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.