TY - RPRT TI - Mineralogy and lithology of the Upper Cretaceous Niobrara Formation determined by hyperspectral core imaging AU - Justin E. Birdwell AU - Lionel C. Fontenot AU - Brigette Martini PY - 2020 DO - 10.31582/rmag.mg.57.2.121 UR - https://pubs.usgs.gov/publication/70210390 ID - 70210390 ER -