Geology and fuel resources of the Fruitland Formation and Kirtland Shale of the San Juan Basin, New Mexico and Colorado

a subsurface and surface study of the coal-bearing Fruitland Formation, the Kirtland Shale, and associated rocks, with emphasis on the relation between regional stratigraphy and the distribution, thickness, and quality of coal

by James E. Fassett, Jim S. Hinds · 1971