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SAMPLE INFO : Tannenbaum_1996_tephra_KA
Sample ID:Tannenbaum_1996_tephra_KA
Station ID:Kodiak Island Regional Tephra
Latitude:57.6
Longitude:-153.19998
Datum:NAD83
Sample Type 1:Tephra Fall
Field Lithology:Dacite
 Text Description:
Yellow to gray in color and < 2cm thick. This unit is found only in the northwestern region of the island in one Campbell Lagoon section (Tannenbaum_1996_CL-03) and in one Onion Bay section (Tannenbaum_1996_OB-04). In section Tannenbaum_1996_OB-04 tephra KA might be mixed with tephra KB and in section Tannenbaum_1996_CL-03, tephra KA is located 4 cm below tephra KB. The stratigraphic position of the two units in section Tannenbaum_1996_CL-03 promotes the idea that post-depositional mixing of the two units may have occurred in section Tannenbaum_1996_OB-04. Stratigraphically the oldest unit, tephra KA is < 5 cm above latest-Pleistocene glacial till. At the Campbell lagoon exposure (Tannenbaum_1996_CL-03), tephra KA is 10 cm below unit KC, which has a maximum date of 8360 +/- 90 yr BP. Individual samples: 94KOD062, 94KODA098.

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.Yellow to gray in color and < 2cm thick. This unit is found only in the northwestern region of the island in one Campbell Lagoon section (Tannenbaum_1996_CL-03) and in one Onion Bay section (Tannenbaum_1996_OB-04). In section Tannenbaum_1996_OB-04 tephra KA might be mixed with tephra KB and in section Tannenbaum_1996_CL-03, tephra KA is located 4 cm below tephra KB. The stratigraphic position of the two units in section Tannenbaum_1996_CL-03 promotes the idea that post-depositional mixing of the two units may have occurred in section Tannenbaum_1996_OB-04. Stratigraphically the oldest unit, tephra KA is < 5 cm above latest-Pleistocene glacial till. At the Campbell lagoon exposure (Tannenbaum_1996_CL-03), tephra KA is 10 cm below unit KC, which has a maximum date of 8360 +/- 90 yr BP. Individual samples: 94KOD062, 94KODA098.Tannenbaum_1996_tephra_KATephra FallCumulateGlass 69.96 0.74 14.33 1.11 3.22 4.02 2.46 7823EMP4.02Cl=0.13EMP

SAMPLE LOCATION

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