Goat Rocks age eruptive deposits (Mount St. Helens), Floating Islan...
Detailed Description
Studebaker Ridge formed during the Tertiary geologic time period (65 million to 2.6 million years ago). The pyroclastic surge from the May 18, 1980 eruption destroyed the trees on the ridge.
Sources/Usage
Public Domain.
Related
Holocene Activity Prior to May 18, 1980 Eruption
Summary of Holocene activity prior to the May 18, 1980 eruption.
Related
Holocene Activity Prior to May 18, 1980 Eruption
Summary of Holocene activity prior to the May 18, 1980 eruption.