Photo and cartoon of 1959 Hebgen Lake earthquake deposit in Henrys Lake (ID) sediment core, along with Cesium-137 levels
By Yellowstone Volcano Observatory
2024 (approx.)
Detailed Description
Photo and cartoon of 1959 Hebgen Lake earthquake deposit in sediment core from Henrys Lake, Idaho, with references to Cesium-137 activity (or concentration). Changes in Cesium-137 are related to atmospheric nuclear tests and provide a means of dating the deposit; those measurements are plotted on the right with depth (in cm) of the core.
Sources/Usage
Public Domain.