Sample: Jensen_2008_Chester_Bluff_Charley_Village_tephra
| Sample ID: |
Jensen_2008_Chester_Bluff_Charley_Village_tephra [1] [2] |
| Station ID: |
Jensen_2008_Chester_Bluff |
| AT Num: |
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| Volcano: |
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| Possible source: |
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| Eruption: |
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| Collector: |
Jensen, B. J. L. |
| Date sampled: |
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| Sample type 1: |
Tephra Fall |
| Color: |
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| Final unit: |
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| Text Description: |
Only present at Site C of Chester Bluff. At Site C, there are two tephra beds directly above CB, the Coal Creek (CC) and Charley Village (CV) tephra. Both are thin (< 1 cm), diffuse, and discontinuous within massive loess. The exact stratigraphic position of CC in regards to CV is unclear since it was unsuccessfully recollected during this study, although it was likely several centimeters above CV. All three beds are faulted steeply toward the downstream end of the bluff. Contaminated by detrital material but also appear to be dominated by green amphibole and some ortho-pyroxene. The composition reported was calculated from analyses of one sample: UA1082. |
| Sample Location: |
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References Cited
Jensen, B.J.L., Froese, D.L., Preece, S.J., Westgate, J.A., and Stachel, Thomas, 2008, An extensive middle to late Pleistocene tephrochronologic record from east-central Alaska: Quaternary Science Reviews, v. 27, p. 411-427, doi:10.1016/j.quascirev.2007.10.010 .
Jensen, B.J.L., 2007, Tephrochronology of Middle to Late Pleistocene Loess in Eastcentral Alaska: University of Alberta M.S. thesis, 120 p.