Sample: 01KW-CP1-G3-15-A
| Sample ID: | 01KW-CP1-G3-15-A [1] |
| Station ID: | 01KW-CP1-G3 |
| AT Num: | AT-234-A |
| 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. 11b. Interpreted deposit type: tephra fall. Thickness: 5.5 cm (132 cm cumulative; unit broken into 7 subunits based on bedding characteristics). Grain size: coarse to medium ash bound by fine ash stringers. Bedding: massive unit bound by clay/silt stringers. Sorting: well sorted between stringers. Juvenile clast type: black-glassy (dense, scoria-like clasts). Remarks: representative sample. Munsell color-wet: 10YR 2/2. Munsell color-dry: 10YR 4/2. Grain shape: angular-subround. Age: >3930+/-40 yr. B.P. |
| 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and discrimination of Holocene tephra-fall deposits, Mount Spurr volcano, Alaska: Northern Arizona University unpublished M.S. thesis, 169 p.
full-text pdf 256mb