00943cam a22002771 4500 gs 64000125 DLC 20260227111413.0 770428s1963 onca b f000 0 eng c gs 64000125 (OCoLC)2924394 U.S. Geol. Survey. Libr. InMuB InMuB DLC eng fre premarc QE185 .A43 no. 104 Maxwell, John Alfred, 1921- Geochemical study of some chert and related deposits, by John A. Maxwell. [Ottawa] Dept. of Mines and Technical Surveys, Canada [1963] ix, 31 p. illus., tables. 25 cm. Geological Survey of Canada. Bulletin 104 "Condensed from [the author's thesis] ... University of Minnesota, 1953." Abstract also in French. Bibliography: p. 15-18. Siliceous rocks. Geochemistry. 29805 29805