Analyses of Arizona, California, Idaho, Nevada and Oregon Coals (open access)

Analyses of Arizona, California, Idaho, Nevada and Oregon Coals

Technical paper issued by the Bureau of Mines over analyses of coals from many western states. The characteristics of the coals found in each state are discussed in detail. This paper includes tables, and maps.
Date: 1947
Creator: Andrews, David A.; Hendricks, Thomas A. & Huddle, John W.
System: The UNT Digital Library
Minable Reserves, Petrography, Chemical Characteristics, and Washability Tests of Coal Occurring in the Coos Bay Coal Field, Coos County, Oregon (open access)

Minable Reserves, Petrography, Chemical Characteristics, and Washability Tests of Coal Occurring in the Coos Bay Coal Field, Coos County, Oregon

Report issued by the Bureau of Mines discussing the coal reserves of Coos County, Oregon. Investigations conducted on the minable coal reserves are presented in detail. This report includes tables, maps, illustrations, and photographs.
Date: 1948
Creator: Toenges, Albert L.; Dowd, James J.; Turnbull, Louis A.; Schopf, J. M.; Cooper, H. M.; Toenges, Albert L. et al.
System: The UNT Digital Library
Notes on the Black Sand Deposits of Southern Oregon and Northern California (open access)

Notes on the Black Sand Deposits of Southern Oregon and Northern California

Technical paper issued by the Bureau of Mines over the black sands of Oregon and California. The history, and character of the deposits are presented. This paper includes tables, maps, photographs, and illustrations.
Date: 1918
Creator: Hornor, R. R.
System: The UNT Digital Library