Sample: 01KW-CP1-G3-10


Sample ID: 01KW-CP1-G3-10 [1]
Station ID: 01KW-CP1-G3
AT Num: AT-230
Volcano: Spurr
Possible source: Hayes
Eruption: Hayes Tephra Set H
Collector: Wallace, K. L.
Date sampled:
Sample type 1: Tephra Fall
Color:
Final unit:
Text Description: Stratigraphic Unit No. 10. Interpreted deposit type: tephra fall-reworked. Thickness: 108 cm. Grain size: coarse lapilli to fine ash. Bedding: cross-beds, dippling bed, fine-ash lenses. Sorting: poorly sorted. Juvenile clast type: white pumice. Sample AT-230 to AT-232, light tan colored pumice clasts suggest a non-Crater Peak or Mount Spurr source. Remarks: pumice from dipping beds. Munsell color-wet: 10YR 4/2. Munsell color-dry: 5Y 8/1 and N5. Grain shape: angular. Age: 3650-3970 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and discrimination of Holocene tephra-fall deposits, Mount Spurr volcano, Alaska: Northern Arizona University unpublished M.S. thesis, 169 p.