00839cam a22002411 4500 gs 56000057 DLC 20260227111403.0 720309s1954 xx 000 0 eng gs 56000057 (OCoLC)259868 DLC OAkU DLC premarc QE185 .A43 no. 30 Boyle, R. W. (Robert William), 1920- A decrepitation study of quartz from the Campbell and Negus-Rycon Shear zone systems, Yellowknife, Northwest Territories. Ottawa, E. Cloutier, Queen's printer, 1954. v, 20 p. illus., diagrs. (2 fold. col., in pocket) tables. Geological Survey of Canada. Bulletin 30 "References": p. 20. Quartz. Geological Survey of Canada. Bulletin ; 30. 29026 29026