A summary of the results of field and laboratory studies concerned with the nature of the ores and the alteration processes affecting them.

NSA is a comprehensive collection of international nuclear science and technology literature for the period 1948 through 1976, pre-dating the prestigious INIS database, which began in 1970. NSA existed as a printed product (Volumes 1-33) initially, created by DOE's predecessor, the U.S. Atomic Energy Commission (AEC). NSA includes citations to scientific and technical reports from the AEC, the U.S. Energy Research and Development Administration and its contractors, plus other agencies and international organizations, universities, and industrial and research organizations. References to books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal articles from worldwide sources are also included. Abstracts and full text are provided if available.

Prepared on behalf of the U.S. Atomic Energy Commission and published with the permission of the Commission.

Prepared partly on behalf of the U.S. Atomic Energy Commission. A regional study with special reference to the Frenchy Incline deposit, San Miguel County, Colorado.