Scientist examines volcanic deposits formed by explosive eruptions...
By Volcano Hazards Program
1991 (approx.)
Detailed Description
These layers of tephra were exposed in a trench dug in Pumice Valley, located about 3 km (1.8 mi) south-southwest from the South Deadman flow. From bottom to top the layers record explosive eruptions from the Deadman and Glass Creek vents and the Inyo Craters.
Sources/Usage
Public Domain.
unknown USGS source
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Related
Volcano Hazards in the Long Valley - Mono Lake Area, California
Volcanic unrest through the 1980's to 1990's in the southern part of the Long Valley caldera reminds us that the volcanic system is young. Volcanic activity and related hazards are likely in the future. USGS scientists closely monitor the area and research past activity to better understand what might happen in the future.