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Text Description: 17 cm thick; fine grained and moderately to poorly sorted; in middle of 30 m thick silt deposits with several prominent organic-rich horizons; overlies 10 m of fluvial gravels (M. Edwards, written communication, 1983) References: ![]() ![]() ![]() |
StationID | Latitude | Longitude | Geologist | DateVisited | Age Info | Volcano | Eruption | Location Description | Text Description | Sample ID | Sample Type 1 | Sample Type 2 | Final Unit | Material | Coeff | SiO2 | TiO2 | Al2O3 | FeOT | MnO | MgO | CaO | Na2O | K2O | P2O5 | Total-majors | REF majors | METH majors | Fe2O3/Fe203T orig | FeO/FeOT orig | Volatiles csv | METH volatiles | Cs | Rb | Ba | Sr | La | Ce | Pr | Nd | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Y | Zr | Nb | Hf | Ta | Pb | Th | U | Sc | V | Cr | Fe | Co | Ni | Cu | Zn | Ga | Mo | As | Na | K | Ref trace1 | METH trace1 | Rb | Ba | Sr | La | Ce | Nd | Sm | Eu | Gd | Dy | Er | Yb | Lu | Y | Zr | Nb | Pb | Th | U | Sc | Ti | V | Cr | Ni | Cu | Zn | Ga | Ref trace2 | METH trace2 | Light csv | Halogen csv | other major csv | other lile csv | other ree csv | other hfse csv | other hpe csv | other tm csv | other misc csv | |
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UT543 | 65.8172 | -144.3 | Westgate, 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). | Birch Creek, Alaska. Sample from near the Circle end of the Steese Highway, Alaska. Location coordinates from Preece et al. (2011). Datum not specified, assumed to be NAD83. | 17 cm thick; fine grained and moderately to poorly sorted; in middle of 30 m thick silt deposits with several prominent organic-rich horizons; overlies 10 m of fluvial gravels (M. Edwards, written communication, 1983) | UT543 | Tephra Fall | Cumulate | Glass | 3.65 | 1792 | INAA | 1.9 | 3.7 | 1000 | 25.2 | 49.7 | 5.53 | 0.6 | 0.8 | 3.7 | 0.61 | 6.7 | 0.9 | 10 | 4.2 | 7 | 1792 | INAA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
UT543 | 65.8172 | -144.3 | Westgate, 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). | Birch Creek, Alaska. Sample from near the Circle end of the Steese Highway, Alaska. Location coordinates from Preece et al. (2011). Datum not specified, assumed to be NAD83. | 17 cm thick; fine grained and moderately to poorly sorted; in middle of 30 m thick silt deposits with several prominent organic-rich horizons; overlies 10 m of fluvial gravels (M. Edwards, written communication, 1983) | UT543 | Tephra Fall | Cumulate | Glass | 75.48 | 0.28 | 13.09 | 1.69 | 0.07 | 0.3 | 1.46 | 3.64 | 3.76 | 10271 | EMP | 1.69 | Cl=0.25; H2O=5.22 | EMP | 4.47 | 96 | 925 | 142 | 25.8 | 54.1 | 6.09 | 24.7 | 5.74 | 0.9 | 4.74 | 0.92 | 5.55 | 1.31 | 3.53 | 0.57 | 3.56 | 0.57 | 35.9 | 253 | 7.01 | 10.27 | 4.52 | 5.56 | 10271 | ICPMS |
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