Boak J, Wu T, Birdwell J. Geochemical studies of the Green River Formation in the Piceance Basin, Colorado: I. Major, minor, and trace elements. UGA-Guides [Internet]. 2022Sep.1 [cited 2024Nov.21];50:1-32. Available from: https://giw.utahgeology.org/giw/index.php/geosites/article/view/114