Granite Augen Gneiss
![granitoid](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/ds942-granitoid.png?itok=tUdJPGHx)
Detailed Description
Mesoproterozoic granite augen gneiss at Napias Creek, east-central Idaho. Cover image from USGS Data Series 942.
Sources/Usage
Public Domain.
USGS Data Series 942
du Bray, E.A., Holm-Denoma, C.S., San Juan, C.A., Lund, Karen, Premo, W.R., and DeWitt, Ed, 2015, Geochemical, modal, and geochronologic data for 1.4 Ga A-type granitoid intrusions of the conterminous United States: U.S. Geological Survey Data Series 942, 19 p., https://doi.org/10.3133/ds942.