Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
First commercial ore body discovered 1854; rocks are pre-Cambrian; ore occurs in lenticular masses, sheets, and chimneys; physical characteristics of ore and enclosing rocks; prospecting and exploration; sampling and estimation of ore; development and mining; underground transportation; ventilation; fire hazards and safety work; mining costs.
First commercial ore body discovered 1854; rocks are pre-Cambrian; ore occurs in lenticular masses, sheets, and chimneys; physical characteristics of ore and enclosing rocks; prospecting and exploration; sampling and estimation of ore; development and mining; underground transportation; ventilation; fire hazards and safety work; mining costs.
Mining soft hematite at mine no. 2 of the Marquette range, Michigan
U.S. Bur. Mines -- Information Cir
Eaton, L. (Autor:in)
1929
15 pages
7 Figs.
Aufsatz (Zeitschrift)
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
Mining practices, methods, and costs at mine no. 4, of Marquette range, Michigan
| Engineering Index Backfile | 1930
Mining practices, methods, and costs at mine no. 5 of the Marquette range, Michigan
| Engineering Index Backfile | 1930
Water resources of the Marquette Iron Range area, Michigan
| TIBKAT | 1967