AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > Tannenbaum_1996_tephra_KD

SAMPLE INFO : Tannenbaum_1996_tephra_KD
Sample ID:Tannenbaum_1996_tephra_KD
Station ID:Kodiak Island Regional Tephra
Latitude:57.6
Longitude:-153.2
Datum:NAD83
Date Sampled:0000-00-00
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 Tephra57.6-153.2Tannenbaum, 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

Contact AVO Privacy Accessibility Information Quality FOIA
URL: avo.alaska.edu/samples/sample_info.php
Page modified: August 1, 2017 15:29
Contact Information: AVO Web Team

twitter @alaska_avo
facebook alaska.avo
email Receive volcano updates by email: USGS VNS

This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G19AC00060 and G19AC00171.

Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.