..Report on the building and ornamental stones of Canada, volI-V . ^. 219 5 feet 6 inches—Blue limestone parting into 8, 10, and 12 inch inches—Blue inches—Blue inches—Blue limestone. 4 feet—Thinner bedded blue limestones. The beds are parted throughout by shaly layers containing fossils. Thefriability of the less compact beds is due to irregularly distributed shalymatter. The most pronounced jointing is E. 50° S. Less evenly developedjointing planes cut the strata in other directions but there is no difficulty inobtaining large dimension stone. These joints a
..Report on the building and ornamental stones of Canada, volI-V . ^. 219 5 feet 6 inches—Blue limestone parting into 8, 10, and 12 inch inches—Blue inches—Blue inches—Blue limestone. 4 feet—Thinner bedded blue limestones. The beds are parted throughout by shaly layers containing fossils. Thefriability of the less compact beds is due to irregularly distributed shalymatter. The most pronounced jointing is E. 50° S. Less evenly developedjointing planes cut the strata in other directions but there is no difficulty inobtaining large dimension stone. These joints are often filled with pinkcalcite. The rock has been quarried by means of deep 3 inch holes and theuse of black powder. The stone was squared by plug and feathers. Themethod of quarrying has resulted in a large amount of waste. The excava-tion is about 800 feet by 300 feet. The stone: The product of this quarry is a bluish grey limestonewith a somewhat clayey aspect; much of it is marred by a tend-ency to irregular fracture, owing to clay partings and the
Size: 1359px × 1839px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbuildin, bookyear1912
