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Full-Text Articles in Geology
Chemical Analysis Of Igneous Rocks And Variation Diagrams Of Petrographic Provinces Of Montana, Frederick M. Hilpert
Chemical Analysis Of Igneous Rocks And Variation Diagrams Of Petrographic Provinces Of Montana, Frederick M. Hilpert
Bachelors Theses and Reports, 1928 - 1970
A total of 179 chemical analyses of igneous rocks are availĀable for the state of Montana, but these analyses do not cover the entire state in a satisfactory manner. There has been an emphasis on the central part of the state, and an almost complete lack of interest in the southern portion of Montana.
Maine Geological Survey - Bulletin 3 : Petrology Of The Columbia Falls Quadrangle, Me., Ruth D. Terzaghi
Maine Geological Survey - Bulletin 3 : Petrology Of The Columbia Falls Quadrangle, Me., Ruth D. Terzaghi
Maine Collection
Maine Geological Survey - Bulletin 3 : Petrology of the Columbia Falls Quadrangle, Me.
Joseph M. Trefethen, State Geologist
by Ruth D. Terzaghi
Maine Development Commission, Augusta, Maine, March 1, 1946.
Vermiculite, Occurence, Character, And Concentration Of Mineral From The Pony District, Madison County, Montana, A. Saterdal
Vermiculite, Occurence, Character, And Concentration Of Mineral From The Pony District, Madison County, Montana, A. Saterdal
Bachelors Theses and Reports, 1928 - 1970
The purpose of this paper is to investigate the occurrence and character of the vermiculite deposits approximately four miles northwest of Pony; Madison County, Montana. The deposits are situated in rolling foothills at the northern end of the Tobacco Root Mountains.
Stratigraphic Studies Of The Ordovician And Devonian Formations Throughout The Northwest Plains Area, Walter N. Campbell
Stratigraphic Studies Of The Ordovician And Devonian Formations Throughout The Northwest Plains Area, Walter N. Campbell
Bachelors Theses and Reports, 1928 - 1970
As yet the knowledge of Ordovician and Devonian physiography in this vast northwest region remains almost a complete secret. Very little, in any, work has been done along this line with the exception of those areas where the various formations outcrop.