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A platform for research: civil engineering, architecture and urbanism
Asbestos veins occur in altered peridotite which, with other closely associated intrusive rocks, are in what is called serpentine belt; an asbestos deposit is worked in 35 ft. levels, faces being blasted down with 38-ft. to 40-ft. holes; movements of all trains in and out of mine are controlled by dispatcher in traffic tower.
Asbestos veins occur in altered peridotite which, with other closely associated intrusive rocks, are in what is called serpentine belt; an asbestos deposit is worked in 35 ft. levels, faces being blasted down with 38-ft. to 40-ft. holes; movements of all trains in and out of mine are controlled by dispatcher in traffic tower.
Asbestos mining in Canada
Explosives Engr
Marvin, T. (author)
1928
4 pages
9 Figs.
Article (Journal)
English
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