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Sample: 01KW-CP5-6

Sample ID: 01KW-CP5-6 [1]
Station ID: 01KW-CP5
AT Num: AT-256
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: black (dense, scoria-like clasts) and tan (pumice-like clasts, yet still poorly vesiculated). Remarks: discontinuous lens. Munsell color-wet: 5YR 3/2. Munsell color-dry: 5YR 6/2. Grain shape: angular-subround. Age: >3650+/-150 yr. B.P.
Sample Location:
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Red (Warning)
Orange (Watch)
Yellow (Advisory)
Green (Normal)
Uninstrumented

100 km
50 mi
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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and discrimination of Holocene tephra-fall deposits, Mount Spurr volcano, Alaska: Northern Arizona University unpublished M.S. thesis, 169 p.