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Articles 121 - 150 of 275
Full-Text Articles in Geology
Manganese Oxide Deposits Near Butte And Development Since 1942, Emmett M. Gilmore
Manganese Oxide Deposits Near Butte And Development Since 1942, Emmett M. Gilmore
Bachelors Theses and Reports, 1928 - 1970
The manganese minerals occur in the peripheral zone of the Butte district with quartz in veins, which at depth contain galena and sphalerite closely associated with silver-bearing minerals. The manganese oxides are all oxidation products formed by weathering of primary rhodochrosite or rhodonite.
Concentration Of Manganese Dioxide From Philipsburg, Montana, W. M. Mcauliffe
Concentration Of Manganese Dioxide From Philipsburg, Montana, W. M. Mcauliffe
Bachelors Theses and Reports, 1928 - 1970
Imports of manganese ore probably supply a major proportion of the needs of the United States. Domestic production is reported to be higher than pre-war levels, but does not equal that of the peak production year of 1943. In 1946, the Anaconda Copper Mining Company accounted for 90 percent of the total shipments of manganese nodules, and this company is the largest producer of domestic metallurgical ore in the United States.
A Mineral Dressing Study Of The U.S. Grant Ore, John Emmett Murphy
A Mineral Dressing Study Of The U.S. Grant Ore, John Emmett Murphy
Bachelors Theses and Reports, 1928 - 1970
This investigation concerns the development of a satisfactory method or extracting or concentrating gold and silver from the ores of the U. S. Grant Mine. The choice between applying an extractive process and one by which the valuable mineral constituents are concentrated depends on more than one factor.
Karst Kamp Asbestos Deposits Gallatin County, Montana, Thomas L. Wilson
Karst Kamp Asbestos Deposits Gallatin County, Montana, Thomas L. Wilson
Bachelors Theses and Reports, 1928 - 1970
Karst Kamp, a southwestern Montana recreation resort, is 32 road miles south of Bozeman on the east bank of the Gallatin River in a narrow V-shaped valley flanked on the west by the rugged Madison mountain range and on the east by the equally rough Gallatin range. The asbestos deposit itself lies approximately one-half mile northwest of the ranch on a heavily timbered "Alpine-like" slope nearly 1200 feet above the floor of the valley.
A Discussion Of The Geology And An Isopach Map Of The Pennsylvanian System In Wyoming And Adjacent Areas, B. R. Alto
A Discussion Of The Geology And An Isopach Map Of The Pennsylvanian System In Wyoming And Adjacent Areas, B. R. Alto
Bachelors Theses and Reports, 1928 - 1970
Pennsylvanian strata in Wyoming and adjacent areas have been the subject of much work and discussion. Most of the work has been due to the economic importance of the system as an oil producer in this region. Oil production from strata of Pennsylvanian age is rather recent history; and therefore, much of the available information is localized and incomplete.
Sandstones Of The Lance And Fort Union Formations, Alan G. Conner
Sandstones Of The Lance And Fort Union Formations, Alan G. Conner
Bachelors Theses and Reports, 1928 - 1970
The Fort Union and Lance formations are widespread terrestrial sediments exposed in Montana, North Dakota, South Dakota, Wyoming, and Canada. Their stratigraphic position, especially that of the Lance, has long been in doubt, and has provoked much controversy among geologists.
Flotation Concentration Of A Montana Lead-Zinc-Silver-Ore, Grover W. Gregson
Flotation Concentration Of A Montana Lead-Zinc-Silver-Ore, Grover W. Gregson
Bachelors Theses and Reports, 1928 - 1970
The Mike Horse mine, in the Huddelston mining district, is fifty-two miles northwest of Helena, Montana. The mine was discovered in 1898 by Joseph Heitmiller. There was only minor production from the date of discovery until 1915; the main drawback being lack of good road.
The Physiographic History Of Western Montana And Northwestern Idaho, John R. Kavanagh
The Physiographic History Of Western Montana And Northwestern Idaho, John R. Kavanagh
Bachelors Theses and Reports, 1928 - 1970
Millions of years of physiographic changes have conditioned us to the fact that our present drainage is a temporary feature. Rivers once flowing opposite to their present direction is not an unusual condition for physiographers to suggest.
An Isopach Map And A Discussion Of The Permian In Wyoming And Adjacent Areas, Willard Leskela
An Isopach Map And A Discussion Of The Permian In Wyoming And Adjacent Areas, Willard Leskela
Bachelors Theses and Reports, 1928 - 1970
The accelerated post-war demand for petroleum products with resultant high prices and dwindling reserves has spurred producers to an extensive search for new fields and for additional production in known fields. Exploration and discovery is dependent on the collection and correlation of vast amounts of data both in the field and that found in literature.
Roasting And Leaching Of Montana Chromite, Jerry D. Murphy
Roasting And Leaching Of Montana Chromite, Jerry D. Murphy
Bachelors Theses and Reports, 1928 - 1970
The United States, although the leading consumer of chromite, depends almost entirely on imports for its supply. Domestic production of chromite is limited, because high-grade imported ore is plentiful and inexpensive in normal times. There are several large deposits of chromite in the United States, representing millions of tons of low grade ore. These deposits form a strategic reserve that must be used in time of national emergency.
Geology Of The Lost Creek-Modesty Creek Area Deerlodge County, Montana, Howard B. Nickelson, Robert L. Pott
Geology Of The Lost Creek-Modesty Creek Area Deerlodge County, Montana, Howard B. Nickelson, Robert L. Pott
Bachelors Theses and Reports, 1928 - 1970
In 1915 the United States Geological Survey published a folio by Calkins and Emmons on the geology of the Philipsburg Quadrangle, which adjoins the area now under study to the west. Geology of this portion of Montana had not been mapped previously; consequently the purpose of this thesis is to make a geological reconnaissance of the stratigraphy and structure of the area.
Geology Of Montana, Stanley G. Olson
Geology Of Montana, Stanley G. Olson
Bachelors Theses and Reports, 1928 - 1970
A vast amount of information has been published by many workers on particular features of the geology of the state of Montana, as well as on local geology of many smaller divisions. However, a satisfactory summary of the geology in general, which would include all phases of geology as they apply to the greater area of the entire state, has not been published.
Leaching Of Low Grade Rhodochrosite, E. D. King
Leaching Of Low Grade Rhodochrosite, E. D. King
Bachelors Theses and Reports, 1928 - 1970
Although there are many uses for manganese today, none of them approaches its importance as a deoxidizing agent in the manufacture of steels. Without manganese the steelmaking industry would be very seriously handicapped. The metallurgy of manganese has been developed around the high-grade ores, and unfortunately, our reserves of high-grade ores are very limited.
Geology Of Upper Bear Gulch And Dry Boulder Creek Area Madison County, Montana, Norman King
Geology Of Upper Bear Gulch And Dry Boulder Creek Area Madison County, Montana, Norman King
Bachelors Theses and Reports, 1928 - 1970
Potential gold mines lie high among the rugged peaks of the Tobacco Root Mountains of southwestern Montana. This is a region where little geologic work has been done, though extensive mine operations have been carried on, and valuable ore has been shipped.
A Preliminary Study Of The Benefication Of Montana Kyanite, Donald Paul Mccarthy
A Preliminary Study Of The Benefication Of Montana Kyanite, Donald Paul Mccarthy
Bachelors Theses and Reports, 1928 - 1970
This investigation is a preliminary study of the beneficiation of Montana kyanite, and while preliminary in degree the information gained may serve as a guide for the eventual exploitation of this Montana resource.
A Geological Report On South Boulder Canyon And The Mayflower Mine-Renova Areas, B. R. Alto
A Geological Report On South Boulder Canyon And The Mayflower Mine-Renova Areas, B. R. Alto
Bachelors Theses and Reports, 1928 - 1970
The purpose of this report is to serve as a written explanation of the accompanying geologic maps and columnar section. Each year the senior students in mining and geological engineering at the Montana School of Mines spend two weeks in the field where they learn the fundamentals of geologic mapping and related field studies. An additional week is spent at the school where maps are assembled, prints made, end other work is done in preparation for the writing of the report.
Geology 63: Geological Report Of Senior Field Trip, Thomas L. Wilson
Geology 63: Geological Report Of Senior Field Trip, Thomas L. Wilson
Bachelors Theses and Reports, 1928 - 1970
The field work was conducted in areas adjacent to Whitehall, Montana, as has been the custom for the past several years. Instruction in the proper use of the telescopic and open sight alidades, and the Brunton compass for surveying geologic features was given. Advantages of pacing and speedometer mapping were pointed out and used.
Mayflower, Renova Basin, And South Boulder Creek Areas, Howard Nickelson
Mayflower, Renova Basin, And South Boulder Creek Areas, Howard Nickelson
Bachelors Theses and Reports, 1928 - 1970
In Montana at the turn of the century a great many men sought the riches buried in the earth's crust. Prospectors fanning out from Butte and other early Montana mining areas located veins at the Mayflower, Renova, and Gold Hill areas.
Geology Of The Renova-Bone Basin And Mayflower Mine Areas, R. L. Burns
Geology Of The Renova-Bone Basin And Mayflower Mine Areas, R. L. Burns
Bachelors Theses and Reports, 1928 - 1970
This report has been compiled from the data collected during the September, 1947, geologic field trip of the Montana School of Mines. The trip, under the direction of Dr. E. S. Perry, consisted of two weeks of field mapping and observation near Whitehall, Montana, and one week at the Montana School of Mines preparing this report.
A Geological Report On Several Localities In The Northwestern Tobacco Root Mountains, Rudi Forhan
A Geological Report On Several Localities In The Northwestern Tobacco Root Mountains, Rudi Forhan
Bachelors Theses and Reports, 1928 - 1970
To better acquaint seniors in Geology and mining with actual field practice, the Montana School of Mines offer a course in Geologic Field Mapping, during the three weeks preceding the opening of the fall semester. The first two weeks are spent in actual field mapping of the geologic formations near Whitehall, Montana, while the third week is spent back on the campus compiling data and finishing maps started in the field.
Geology And Mines Of The Upper Blackfoot Valley, Montana, Thomas K. Shea
Geology And Mines Of The Upper Blackfoot Valley, Montana, Thomas K. Shea
Bachelors Theses and Reports, 1928 - 1970
The purchase and continued operation of the Mike Horse mine in the Heddleston district, by the American Smelting and Refining Company, gives the Blackfoot Valley a renewed promise of a prosperous future in its role as a mining district. In the past, large amounts of placer gold were recovered from the gulches of the area, however, because of the transportation facilities, only the upper portions of a few lodes were exploited by the early miners.
Rugose Corals Of The Madison Group, William R. Paine
Rugose Corals Of The Madison Group, William R. Paine
Bachelors Theses and Reports, 1928 - 1970
One of the best types of index fossils, and one which occurs most plentifully in the Madison group of formations in Montana, and yet, one which has been little studied, is the group of rugose, or cup, corals. Perhaps this group of fossils has not been studied in detail because their distinguishing characteristics are mainly internal, and laboratory preparation in the form of thin section or polished surfaces is necessary to bring out these characteristics.
Kibbey Sandstone In Montana, Glen Shean
Kibbey Sandstone In Montana, Glen Shean
Bachelors Theses and Reports, 1928 - 1970
Much attention has recently been given, by geologists, to prolific water bearing horizon and a potential oil horizon, known as the Kibbey sandstone, which lies deeply buried under much of central Montana. In some localities the sandstone is dry, and its identification in cuttings from deep wells has in many cases proved difficult.
The Geology And Ore Deposits Of The Ruby Gulch Mine, Henry J. Roletto, John X. Combo
The Geology And Ore Deposits Of The Ruby Gulch Mine, Henry J. Roletto, John X. Combo
Bachelors Theses and Reports, 1928 - 1970
The Ruby Gulch Mine, owned and operated by the Ruby Gulch Mining Company, Zortman, Montana, is one of the most important low-grade gold producers in the state. Situated in the Little Rocky Mountains, the mine has had an interesting history since its discovery shortly before the turn of the century.
Upper Cretaceous Sediment In Montana, Frank J. Frankovich
Upper Cretaceous Sediment In Montana, Frank J. Frankovich
Bachelors Theses and Reports, 1928 - 1970
Cretaceous sediments in Montana record events during a period of unusual geologic interest. After a long period of extensive submergence of the area during Jurassic time, came a period of varying continental and marine deposition with consequent variations in the types of sediments laid down. A study of these variations, their extent, and their cause has been the primary object of this thesis.
The Problem Of The Tensleep Sandstone, George D. Mccarthy
The Problem Of The Tensleep Sandstone, George D. Mccarthy
Bachelors Theses and Reports, 1928 - 1970
Sandstone is probably one of the most important groups of rocks in existence today. The economic importance of so insignificant a thing as a mass of sand grains grows with the true reality of the situation. By increasing our knowledge of grains of sand, or particles of sandstone in all their ramifications, it would undoubtedly reflect upon our everyday life by increasing commercial possibilities of an undeveloped natural resource of Montana.
Isopach Maps And Discussion Of The Ordovician And Devonian Of Montana And Adjacent Areas, Arden F. Blair
Isopach Maps And Discussion Of The Ordovician And Devonian Of Montana And Adjacent Areas, Arden F. Blair
Bachelors Theses and Reports, 1928 - 1970
The intensive postwar search for new petroleum horizons has resulted in widespread prospecting in the northern Great Plains. No commercial production has as yet been derived from Ordovician or Devonian rocks in Montana, but the relatively few tests that have penetrated to critical depths have disclosed encouraging conditions which merit further consideration, especially in Devonian strata.
Occurrence Of Native Copper Near Jefferson City, Montana, Terence G. Kirkland
Occurrence Of Native Copper Near Jefferson City, Montana, Terence G. Kirkland
Bachelors Theses and Reports, 1928 - 1970
Sometime prior to 1870, a group of prospectors made what was believed to be a "rich strike' on one of the tributaries of Prickly Pear Creek in Jefferson County, Montana. Instead of striking it rich, they had uncovered a native copper deposit, worthless to them because of its limited extent and remote location, but now of much interest to the geologist, and to the mining engineer because of its possible commercial value.
General Geology And Mines Of Northwestern Montana, Robert L. Sandvig
General Geology And Mines Of Northwestern Montana, Robert L. Sandvig
Bachelors Theses and Reports, 1928 - 1970
The five counties discussed in this paper compose the northernmost and westernmost counties in Montana. On the eastern boundary are Glacier National Park and the Continental Divide; on the southern boundary are Missoula and Powell counties; Idaho lies on the southwestern and western side; and the Canadian border lies along the northern edge. The region is on the Pacific Ocean side of the Rocky Mountains. Three major rivers, the Clark Fork, the Flathead, and the Kootenai drain this area into the Columbia River.
A Preliminary Investigation Of Chromite, Lester C. Brown
A Preliminary Investigation Of Chromite, Lester C. Brown
Bachelors Theses and Reports, 1928 - 1970
The purpose of this thesis was to study the effects of cryolite and a mixture of cryolite and aluminum oxide on a chromite concentrate with special reference to the ability to break the bond between the ferrous iron and chromic oxide in the chromite.