Leave no stone unturned
![Male geologist, kneeling with hand on rock with rifle on ground, and helicopter and evergreen trees in background.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/JSC_IMG_7720.jpeg?itok=OJ4Ur1Ta)
Detailed Description
USGS researcher collecting one more sample while waiting for the helicopter in Kanuti, Alaska. The Kanuti ophiolite is a mafic-ultramafic thrust sheet of probable Jurassic age, formerly considered to be the upper part of the Yukon-Koyukuk ophiolite (Angayucham terrane). It is here called the Kanuti ophiolite after the Kanuti River region on the southeastern flank of the Yukon-Koyukuk Basin.
Sources/Usage
Public Domain.
Photo by Jonathan Caine, U.S. Geological Survey