Sample: 01KW-CP1-G1-5
| Sample ID: | 01KW-CP1-G1-5 [1] |
| Station ID: | 01KW-CP1-G1 |
| AT Num: | AT-204 |
| Volcano: | Spurr |
| Possible source: | Crater Peak |
| Eruption: | |
| Collector: | Wallace, K. L. |
| Date sampled: | |
| Sample type 1: | Tephra Fall |
| Color: | |
| Final unit: | |
| Text Description: | Stratigraphic Unit No. 3b. Interpreted deposit type: tephra fall. Thickness: 2 cm (62 cm cumulative; unit broken into four subunits based on bedding characteristics). Grain size: fine lapilli to coarse ash. Bedding: massive (entire unit consists of alternating massive and normally graded subunits). Sorting: well-sorted . Juvenile clast type: tan (rare-pumice-like clasts, yet still poorly vesiculated) and black (dense, scoria-like clasts). Remarks: representative sample. Munsell color-wet: 10Y 4/4. Munsell color-dry: 5Y 6/4. Grain shape: angular. Age: 840+/-60 yr. B.P. >1953. |
| Sample Location: |
References Cited
[1] Characterization and discrimination of Holocene tephra-fall deposits, Mount Spurr volcano, Alaska, 2003
Wallace, K. L., 2003, Characterization and discrimination of Holocene tephra-fall deposits, Mount Spurr volcano, Alaska: Northern Arizona University unpublished M.S. thesis, 169 p.
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