Probable Permian age of the Rampart Group, central Alaska

Geology of the Northern Franklin Mountains, Texas and New Mexico

Progressive metamorphism of iron-formation and associated rocks in the Wologizi Range, Liberia

Precambrian melasyenite of Ute Creek, San Juan Mountains, Colorado chemistry, petrology, and strontium isotopes

Stratigraphy and potassium-argon ages of some Tertiary tuffs from Lander and Churchill Counties, central Nevada

A geochemical study of alluvium-covered copper deposits in Pima County, Arizona

Geology, mineral deposits, and geochemical and radiometric anomalies, Serpentine Hot Springs area, Seward Peninsula, Alaska

Lead isotope guides for Mississippi Valley lead-zinc exploration

Mineralogy and geochemistry of some Belt rocks, Montana and Idaho

Geometric factors of bipole-dipole arrays

Geochemical investigations of some black shales and associated rocks

Terrestrial impact structures; a bibliography, 1965-68

Stratigraphy of the State Bridge Formation in the Woody Creek Quadrangle, Pitkin and Eagle Counties, Colorado

Changes in stratigraphic nomenclature by the U.S. Geological Survey, 1969

Mineral resources of the Pasayten Wilderness Area, Washington