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SAMPLE INFO : Tannenbaum_1996_tephra_KD
Sample ID:Tannenbaum_1996_tephra_KD
Station ID:Kodiak Island Regional Tephra
Latitude:57.6
Longitude:-153.19998
Datum:NAD83
Sample Type 1:Tephra Fall
Field Lithology:Rhyolite
 Text Description:
Tephra unit KD is found in the eastern, western, and northern regions of the island; it is exposed in 10 stratigraphic sections (Tannenbaum_1996_PP-01, Tannenbaum_1996_KB-01, Tannenbaum_1996_KB-02, Tannenbaum_1996_KB- 03, Tannenbaum_1996_CL-01,Tannenbaum_1996_ CL-02, Tannenbaum_1996_CL-03, Tannenbaum_1996_OB-01, Tannenbaum_1996_OB-02, Tannenbaum_1996_OB-04), and is yellow in color with an average thickness of 4 cm. c14 dates give tephra KD a maximum age of 7220 +/- 70 yr BP and a minimum age of 6490 +/- 80 yr BP. In section Tannenbaum_1996_CL-02 tephra KD is possibly mixed with tephra KA. However, post depositional mixing is unlikely to have happened to units KA and KD because in section Tannenbaum_1996_CL-03, the 13 cm thick unit KC and 12 cm of soil separate the units. Individual samples: 94KOD002, 94KOD004, 94KOD009, 94KOD019, 94KODA036, 94KOD046, 94KODA059, 94KOD071, 94KOD087, 94KOD095.

References:
Holocene tephra stratigraphy on northern Kodiak Island, 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
Kodiak Island Regional Tephra57.6-153.19998Tannenbaum, T. G.0000-00-00 Kodiak Island, Alaska. Regional tephra units identified from sixteen stratigraphic sections (with exposed tephra) from Karluk Lagoon, Campbell Lagoon, Onion Bay, Anton Bay, Middle Kalsin Bay, and Pasagshak Point. Glass compositions of samples from this section are averages calculated from analyses of multiple tephra correlated across different stratigraphic locations in the area. Individual sample IDs are noted in the sample descriptions. Generic station location selected on Kodiak Island.Tephra unit KD is found in the eastern, western, and northern regions of the island; it is exposed in 10 stratigraphic sections (Tannenbaum_1996_PP-01, Tannenbaum_1996_KB-01, Tannenbaum_1996_KB-02, Tannenbaum_1996_KB- 03, Tannenbaum_1996_CL-01,Tannenbaum_1996_ CL-02, Tannenbaum_1996_CL-03, Tannenbaum_1996_OB-01, Tannenbaum_1996_OB-02, Tannenbaum_1996_OB-04), and is yellow in color with an average thickness of 4 cm. c14 dates give tephra KD a maximum age of 7220 +/- 70 yr BP and a minimum age of 6490 +/- 80 yr BP. In section Tannenbaum_1996_CL-02 tephra KD is possibly mixed with tephra KA. However, post depositional mixing is unlikely to have happened to units KA and KD because in section Tannenbaum_1996_CL-03, the 13 cm thick unit KC and 12 cm of soil separate the units. Individual samples: 94KOD002, 94KOD004, 94KOD009, 94KOD019, 94KODA036, 94KOD046, 94KODA059, 94KOD071, 94KOD087, 94KOD095.Tannenbaum_1996_tephra_KDTephra FallCumulateGlass 77.31 0.15 13.38 0.4 1.89 3.78 1.57 7823EMP1.36Cl=0.16EMP

SAMPLE LOCATION

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