Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mining practice at Ray Mines, Nevada Consolidated Copper Co., Ray, Ariz.
History of district; geology; prospecting and exploration; sampling and estimation; development; mining by hand-trimming; motor, modified motor, and sublevel method; underground transportation; contracts and bonus payment for labor; ventilation; mine drainage; safety methods; first-aid and fire prevention; tabular cost data.
Mining practice at Ray Mines, Nevada Consolidated Copper Co., Ray, Ariz.
History of district; geology; prospecting and exploration; sampling and estimation; development; mining by hand-trimming; motor, modified motor, and sublevel method; underground transportation; contracts and bonus payment for labor; ventilation; mine drainage; safety methods; first-aid and fire prevention; tabular cost data.
Mining practice at Ray Mines, Nevada Consolidated Copper Co., Ray, Ariz.
U.S. Bur. Mines -- Information Cir
Thomas, R.W. (Autor:in)
1929
25 pages
16 Figs.
Report
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
Recent changes in mining methods at ray mines of the Nevada consolidated copper Co.
| Engineering Index Backfile | 1930
Mining methods and practices at United Verde Copper Mines, Jerome, Ariz
| Engineering Index Backfile | 1931
Nevada consolidated mining company
| Engineering Index Backfile | 1921
Safety plan at ray mines division Kennecott Copper Corp., Ray, Ariz
| Engineering Index Backfile | 1957