Sample: Tannenbaum_1996_tephra_KG
| Sample ID: |
Tannenbaum_1996_tephra_KG [1] |
| Station ID: |
Kodiak Island Regional Tephra |
| AT Num: |
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| Volcano: |
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| Possible source: |
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| Eruption: |
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| Collector: |
Tannenbaum, T. G. |
| Date sampled: |
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| Sample type 1: |
Tephra Fall |
| Color: |
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| Final unit: |
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| Text Description: |
Tephra KG is found only in the northern region of the island and is exposed in four sections (Tannenbaum_1996_CL-04, Tannenbaum_1996_AB-01, Tannenbaum_1996_OB-01, & Tannenbaum_1996_OB-03). Tephra KG is orange in color with an average thickness of 3 cm. Although DFA classifies these 4 samples together; DFA, stratigraphic position and c14 dates contradict. Samples from sections Tannenbaum_1996_CL-04, Tannenbaum_1996_AB-01, Tannenbaum_1996_OB-01 can be grouped as a unit and fit the inter-section stratigraphy. However, stratigraphic position places Tannenbaum_1996_OB-03 out of sequence with the other sections. In addition, section Tannenbaum_1996_OB-03 does not fitchronologically because c14 dates of 4560 +/- 80 yr BP (maximum) and 3970 +/- 80 yr BP (minimum) for section Tannenbaum_1996_OB-03 place it 900 - 1000 years younger than section Tannenbaum_1996_OB-01 dated to 5530 +/- 80 yr BP (maximum) and 5100 +/- 90 yr BP (minimum) Therefore, the geochemically similar sample in section Tannenbaum_1996_OB-03 is probably a different deposit. Individual samples: 94KOD053, 94KOD064, 94KOD074. |
| Sample Location: |
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References Cited
Tannenbaum, T.G., 1996, Holocene tephra stratigraphy on northern Kodiak Island, Alaska: University of Alaska Fairbanks M.S. thesis, 165 p.