Volcano List
About Alaska's Volcanoes Hazards from Alaska's Volcanoes
Map & Alphabetical List Interactive Map
Eruption Search Volcano Search
|
Text Description: < 1 cm thick; bubble-wall shards and trace amounts brown glass; in dark brown organic silt about 1 m above Sheep Creek-K (UT2023); field name DF03-20. Sample collected by D. Froese, 2003. References:  Changing ideas on the identity and stratigraphic significance of the Sheep Creek tephra beds in Alaska and the Yukon Territory, northwestern North America A catalogue of late Cenozoic tephra beds in the Klondike Goldfields and adjacent areas, Yukon Territory |
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.
Operations
Response
Staff
Fields of Study
Geology
Color Code Definitions
Webcams
Webicorders
RSAM
Great Sitkin
Cleveland
Glossary
Recent Images
Browse Images
