Alaska Volcano Observatory

Yellow to gray in color and < 2cm thick. This unit is found only in the northwestern region of the island in one Campbell Lagoon section (Tannenbaum_1996_CL-03) and in one Onion Bay section (Tannenbaum_1996_OB-04). In section Tannenbaum_1996_OB-04 tephra KA might be mixed with tephra KB and in section Tannenbaum_1996_CL-03, tephra KA is located 4 cm below tephra KB. The stratigraphic position of the two units in section Tannenbaum_1996_CL-03 promotes the idea that post-depositional mixing of the two units may have occurred in section Tannenbaum_1996_OB-04. Stratigraphically the oldest unit, tephra KA is < 5 cm above latest-Pleistocene glacial till. At the Campbell lagoon exposure (Tannenbaum_1996_CL-03), tephra KA is 10 cm below unit KC, which has a maximum date of 8360 +/- 90 yr BP. Individual samples: 94KOD062, 94KODA098.

Sample Location:

+−

The National Map (Topo) The National Map (Imagery) The National Map (Topo + Imagery) The National Map (Shaded Relief)

Elevated Volcanoes Instrumented Volcanoes Uninstrumented Volcanoes Communities Webcams Instruments Earthquakes Geologic Sites

Legend

	Red (Warning)
	Orange (Watch)
	Yellow (Advisory)
	Green (Normal)
	Uninstrumented

300 km

200 mi

Leaflet | U.S. Department of the Interior | U.S. Geological Survey | Policies

References Cited

[1] Holocene tephra stratigraphy on northern Kodiak Island, Alaska, 1996

Tannenbaum, T.G., 1996, Holocene tephra stratigraphy on northern Kodiak Island, Alaska: University of Alaska Fairbanks M.S. thesis, 165 p.

USGS Volcano Notification Service
Contact AVO
Privacy
Accessibility
Information Quality
FOIA

This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137 and G23AC00070.

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