Sample: 01KW-CP5-7-A
| Sample ID: | 01KW-CP5-7-A [1] |
| Station ID: | 01KW-CP5 |
| AT Num: | AT-257-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. PIT 3, unit d. Interpreted deposit type: multiple tephra fall, paleosol complex. Thickness: 39 cm (multiple 0.5 to 2 cm tephra lenses). Grain size: coarse to medium ash lenses, and fine lapilli lenses. Bedding: lenses both continuous and discontinuous. Sorting: well sorted. Juvenile clast type: tan (pumice-like clasts, yet still poorly vesiculated). Remarks: continuous lens. Munsell color-wet: 5YR 3/2. Munsell color-dry: 5YR 6/2. Grain shape: angular-subangular. Age: >3650+/-150 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and discrimination of Holocene tephra-fall deposits, Mount Spurr volcano, Alaska: Northern Arizona University unpublished M.S. thesis, 169 p.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