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Sample: 01KW-CP1-G3-16-B

Sample ID: 01KW-CP1-G3-16-B [1]
Station ID: 01KW-CP1-G3
AT Num: AT-235-B
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. 11d. Interpreted deposit type: tephra fall. Thickness: 8.5 cm (132 cm cumulative; unit broken into 7 subunits based on bedding characteristics). Grain size: fine lapilli to coarse ash. Bedding: normally graded. Sorting: poorly sorted. Juvenile clast type: tan (pumice-like clasts, yet still poorly vesiculated), and black-glossy (dense, scoria-like clasts). Remarks: representative sample. Munsell color-wet: 10YR 2/2. Munsell color-dry: N 6.5. Grain shape: angular. Age: >3930+/-40 yr. B.P.
Sample Location:
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Legend
✕
Red (Warning)
Orange (Watch)
Yellow (Advisory)
Green (Normal)
Uninstrumented

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and discrimination of Holocene tephra-fall deposits, Mount Spurr volcano, Alaska: Northern Arizona University unpublished M.S. thesis, 169 p.