Mineralogy of drill cores from the potash field of New Mexico and Texas

The potash field of southeastern New Mexico and adjacent parts of Texas is confined to the southern part of the Permian salt basin, covering about 40,000 square miles. The potash and associated minerals lie in a body of Permian halite, whose top is at least several hundred feet below the present surface.

The material described in this report was obtained from drill cores and well 'cuttings. All the specimens illustrated are parts of drill cores that were shipped to Washington for examination and chemical analysis of their potash content.