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Text Description: 4 cm thick. Small pods of tephra within dark brown, organic-rich silt with many cobbles and some peaty patches. These flood-plain deposits fill depressions on the surface of underlying gravel (unit 5 of Elias et al., 1999) and are overlain by glaciolacustrine stony mud (unit 6 of Elias et al., 1999). 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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NK26B | 68.0875 | -158.4772 | Unknown, Unknown | 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). | Noatak River, Alaska. Datum not specified, assumed to be NAD83. | 4 cm thick. Small pods of tephra within dark brown, organic-rich silt with many cobbles and some peaty patches. These flood-plain deposits fill depressions on the surface of underlying gravel (unit 5 of Elias et al., 1999) and are overlain by glaciolacustrine stony mud (unit 6 of Elias et al., 1999). | UT1714 | Tephra Fall | Cumulate | Glass | 75.41 | 0.33 | 13.08 | 1.7 | 0.06 | 0.28 | 1.48 | 3.66 | 3.72 | 10271 | EMP | 1.7 | Cl=0.28; H2O=4.07 | EMP | 4.29 | 101 | 1015 | 136 | 25.3 | 52.9 | 5.96 | 24.3 | 5.72 | 1 | 5.18 | 0.96 | 5.54 | 1.32 | 3.59 | 0.56 | 3.82 | 0.57 | 34.8 | 251 | 6.76 | 9.66 | 3.95 | 5.88 | 10271 | ICPMS |
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