From foreword: This report details geologic investigations of radioactive deposits in the United States.

This report presents results of a geological study of the Little Cone quadrangle in southwestern Colorado, as well as information on the mineralogy of the location.

Abstract: "In this report is assembled the available information about the dissociation and melting of the alkali and the alkaline earth carbonates and the binary systems they form with each other. Information is also included about the oxides formed on dissociation of the carbonates, and when it exists pertinent information about the effect of water. Because the carbonates are compounds in binary systems that contain the volatile CO2 component, the report contains a discussion of the complicated phase equilibrium relations in systems in which a compound is formed between volatile and nonvolatile components, including a discussion both of systems in which the solubility curve does not and does intersect the critical curve."