AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
You are here: Home > Samples > 01KW-CP1-G3-10

Sample ID:01KW-CP1-G3-10
Station ID:01KW-CP1-G3
Sample Type 1:Tephra Fall
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.

Characterization and discrimination of Holocene tephra-fall deposits, Mount Spurr volcano, Alaska


Contact AVO Privacy Accessibility Information Quality FOIA
URL: www.avo.alaska.edu/samples/sample_info.php
Page modified: August 1, 2017 15:29
Contact Information: AVO Web Team

twitter @alaska_avo
facebook alaska.avo
email Receive volcano updates by email: USGS VNS

This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G19AC00060 and G19AC00171.

Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.