Sample: 01KW-CP5-3-A
Sample ID: | 01KW-CP5-3-A [1] |
Station ID: | 01KW-CP5 |
AT Num: | AT-253-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 1, unit b. Interpreted deposit type: tephra fall, paleosol complex. Thickness: 12 cm (4 cm of which is poorly developed A-horizon of soil). Grain size: 1.3 cm (average 5 mm) lapilli to coarse sand size. Bedding: massive. Sorting: moderately sorted. Juvenile clast type: tan (pumice-like clasts, yet still poorly vesiculated) and black (dense, scoria-like clasts). Remarks: representative sample. Munsell color-wet: 5YR 3/2. Munsell color-dry: 5YR 4/2. Grain shape: angular. 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and discrimination of Holocene tephra-fall deposits, Mount Spurr volcano, Alaska: Northern Arizona University unpublished M.S. thesis, 169 p.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