Sample: 96TOK1-22
Sample ID: | 96TOK1-22 [1] |
Station ID: | 96TOK1 |
AT Num: | |
Volcano: | |
Possible source: | |
Eruption: | Old Crow Tephra |
Collector: | Schaefer, J. R. G. |
Date sampled: | |
Sample type 1: | Tephra Fall |
Color: | white |
Final unit: | |
Text Description: | Collected from within stratigraphic Unit 5, which consists of 2 m of massive loess. Discontinuous, 1- to 5-cm thick deposit of fine white ash, approximately 0.5 m above tephra sample 96TOK1-21. Characterized by platey, tricuspate bubble-wall shards. Most of the platey glass fragments in this tephra are less than 100 microns across, although a few are up to 150 microns. |
Sample Location: |
References Cited
[1] Stratigraphy, major oxide geochemistry, and 40Ar/39Ar geochronology of a tephra section near Tok, Alaska, 2002
Schaefer, J. R. G., 2002, Stratigraphy, major oxide geochemistry, and 40Ar/39Ar geochronology of a tephra section near Tok, Alaska: University of Alaska Fairbanks unpublished M.S. thesis, 62 p.
full-text PDF 2.06 MB