Geologic Studies on Sitkinak Island, Alaska
![Image: Geologic Studies on Sitkinak Island, Alaska](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/Sitkinak_USGS_3.jpg?itok=FBJxDbGp)
Detailed Description
Geologists extract a hand-driven core from 2-3 m depth on Sitkinak Island, Alaska. The cores contain peat with interbedded sand layers that record inundation of the coast by prehistoric tsunamis. (l-r: Peter Haeussler, USGS; Andrew Kemp, Tufts University; Alan Nelson, USGS)
Sources/Usage
Public Domain.