Sampling lava flows on Cobb Mountain, California
By California Volcano Observatory
February 2020 (approx.)
Detailed Description
Collecting samples on Cobb Mountain south of the Clear Lake Volcanic Field helps CalVO scientists unravel the eruptive history of the area. By examining these samples on the macro and micro scales, they can derive the geochemical evolution and eruption age of the lavas that form Cobb Mountain. USGS photo by Sally Stevens.
Sources/Usage
Public Domain.