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SAMPLE INFO : UT1411
Sample ID:UT1411
Station ID:DK96-33
Latitude:58.9825
Longitude:-161.3575
Datum:NAD83
Sample Type 1:Tephra Fall
Field Lithology:Rhyolite
Text Description:
Uppermost tephra at station DK96-33. Comprises much of a 20-cm-thick zone of convoluted, tan to reddish-brown, organic-rich sandy silt that rests on a deformed base. Purest material was sampled at 7.8 to 7.9 m above sea level. Reworked tephra is also found above this zone as pods and deformed layers and is disseminated in the organic-rich silt. The glass consists of bubble-wall shards and poorly vesicular shards and pumice.

References:
Old Crow tephra across eastern Beringia: a single cataclysmic eruption at the close of Marine Isotope Stage 6
The application of ICP-MS methods to tephrochronological problems
The last interglacial to glacial transition, Togiak Bay, southwestern Alaska

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
DK96-3358.9825-161.3575Kaufman, D. S.0000-00-00 Togiak Bay site, same location as station DK95-22. Coastal exposure at Togiak Bay, on the northwestern edge of Bristol Bay in the eastern Bering Sea, southwestern Alaska. Eighteen-m-thick sequence of interstratified marine, lacustrine, fluvial, glacial, volcanic, and organic deposits. Location coordinates provided as degrees/minutes/seconds and converted to decimal degrees. Datum not provided, assumed to be NAD83. Uppermost tephra at station DK96-33. Comprises much of a 20-cm-thick zone of convoluted, tan to reddish-brown, organic-rich sandy silt that rests on a deformed base. Purest material was sampled at 7.8 to 7.9 m above sea level. Reworked tephra is also found above this zone as pods and deformed layers and is disseminated in the organic-rich silt. The glass consists of bubble-wall shards and poorly vesicular shards and pumice.UT1411Tephra FallCumulateGlass 74.97 0.25 13.64 1.72 0.06 0.21 1.4 4.13 3.5 10631EMP1.72Cl=0.12; H2O=3.24EMP 8.58 122 820 100 15.9 29 3.69 13.8 3.02 0.75 2.96 0.49 2.89 0.6 1.86 0.28 1.95 0.22 21 151 4 4.45 0.22 10.7 6.68 10631ICPMS
DK96-3358.9825-161.3575Kaufman, D. S.0000-00-00 Togiak Bay site, same location as station DK95-22. Coastal exposure at Togiak Bay, on the northwestern edge of Bristol Bay in the eastern Bering Sea, southwestern Alaska. Eighteen-m-thick sequence of interstratified marine, lacustrine, fluvial, glacial, volcanic, and organic deposits. Location coordinates provided as degrees/minutes/seconds and converted to decimal degrees. Datum not provided, assumed to be NAD83. Uppermost tephra at station DK96-33. Comprises much of a 20-cm-thick zone of convoluted, tan to reddish-brown, organic-rich sandy silt that rests on a deformed base. Purest material was sampled at 7.8 to 7.9 m above sea level. Reworked tephra is also found above this zone as pods and deformed layers and is disseminated in the organic-rich silt. The glass consists of bubble-wall shards and poorly vesicular shards and pumice.UT1411Tephra FallCumulateGlass 75.05 0.25 13.62 1.7 0.05 0.23 1.4 4.08 3.5 10271EMP1.7Cl=0.11; H2O=3.48EMP 8.15 128 772 115 18.3 37.6 3.94 16.9 3.69 0.68 3.26 0.56 3.21 0.78 2.26 0.32 2.23 0.34 22.2 164 4.05 4.71 0.39 11.8 5.97 10301ICPMS
DK96-3358.9825-161.3575Kaufman, D. S.0000-00-00 Togiak Bay site, same location as station DK95-22. Coastal exposure at Togiak Bay, on the northwestern edge of Bristol Bay in the eastern Bering Sea, southwestern Alaska. Eighteen-m-thick sequence of interstratified marine, lacustrine, fluvial, glacial, volcanic, and organic deposits. Location coordinates provided as degrees/minutes/seconds and converted to decimal degrees. Datum not provided, assumed to be NAD83. Uppermost tephra at station DK96-33. Comprises much of a 20-cm-thick zone of convoluted, tan to reddish-brown, organic-rich sandy silt that rests on a deformed base. Purest material was sampled at 7.8 to 7.9 m above sea level. Reworked tephra is also found above this zone as pods and deformed layers and is disseminated in the organic-rich silt. The glass consists of bubble-wall shards and poorly vesicular shards and pumice.UT1411Tephra FallCumulateGlass Cl=0.11; H2O=3.48EMP 8.74 1.2 848 98 16.1 28.9 3.76 13.7 3.19 0.66 3.1 0.51 2.96 0.61 1.9 0.28 1.97 0.32 17.2 147 3.64 4.36 0.34 10.7 6.56 10271ICP

SAMPLE LOCATION

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