00926cam a2200253 4500 gs 67000226 DLC 20260227111421.0 691209s1966 nmuab b 00010 eng c gs 67000226 //r84 U.S. Geol. Survey. Library TN24.N6 A232 no. 88 552/.5 Foster, Roy W. Sources for lightweight shale aggregate in New Mexico, by Roy W. Foster. Socorro, State Bureau of Mines and Mineral Resources, New Mexico Institute of Mining & Technology, 1966. 86 p. illus., maps. 23 cm. New Mexico. Bureau of Mines and Mineral Resources. Bulletin 88 Bibliography: p. [82] Shale New Mexico. Geology New Mexico. Aggregates (Building materials) Bulletin (New Mexico. Bureau of Mines and Mineral Resources) ; 88. 30340 30340