Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Jeffery mine is taken as prototype of Thetford mining district asbestos mine in Quebec; general geology, drilling and blasting; details of open pit and block caving operations, drainage and ventilation; mine produces 12,000 tons daily; Canadian asbestos supplies expected to last another 100 yr.
Jeffery mine is taken as prototype of Thetford mining district asbestos mine in Quebec; general geology, drilling and blasting; details of open pit and block caving operations, drainage and ventilation; mine produces 12,000 tons daily; Canadian asbestos supplies expected to last another 100 yr.
Asbestos in Canada
Min Mag
Jarman, H.G. (Autor:in)
Mining Magazine ; 102
1960
4 pages
Aufsatz (Zeitschrift)
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
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