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The Elkhorn Mine Of Jefferson County, Montana, David D. Walker
The Elkhorn Mine Of Jefferson County, Montana, David D. Walker
Bachelors Theses and Reports, 1928 - 1970
In 1901, after yielding metals valued in excess of five million dollars, it was considered worked out. Since that time the mine has passed through the hands of several owners, none of whom have failed to realize a profit from it. Although at no time since its zenith did it ever regain its once great production, it did provide a livelihood for those who worked it. Now with the American Smelting and Refining Company interested in it, perhaps it will once again become an important producer.
Was Assimilation Important In The Formation Of The Boulder Batholith?, Richard Marvin
Was Assimilation Important In The Formation Of The Boulder Batholith?, Richard Marvin
Bachelors Theses and Reports, 1928 - 1970
Examination of a rock suite from the northern end of the Boulder batholith reveals that four of the eight criteria for assimilation as given by Grout are present. Thus, in the opinion of the writer, there is evidence and trends to signify assimilation, but no indication of the importance that it played in the formation of the Boulder batholith.
Benefication Of An Oxidized Lead Ore From The Franklin Mine Lewis And Clark County, Jack D. Mclenegan
Benefication Of An Oxidized Lead Ore From The Franklin Mine Lewis And Clark County, Jack D. Mclenegan
Bachelors Theses and Reports, 1928 - 1970
This thesis is concerned with the beneficiation of an oxidized lead ore. Emphasis was placed upon concentration by flotation rather than by gravity methods, although some investigation was made with the Wilfley shaking table. The concentration of lead minerals received most consideration in the problem, but wherever possible attempts were made to increase the silver and gold concentration along with the lead.
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.
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.
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.
Economic Talc Deposits Of Montana And Related Firing Problems, Charles J. Lyden
Economic Talc Deposits Of Montana And Related Firing Problems, Charles J. Lyden
Bachelors Theses and Reports, 1928 - 1970
This thesis has to do with a study of the production of talc in Montana, describing the local geology of each deposit, and a description of the laboratory tests that were made on various grades of Montana talc in an attempt to determine why some grades of talc can be burned in solid forms while others must be ground, mixed with a binder and molded.
Helena And Ennis Talc Deposits, Howard N. Anderson
Helena And Ennis Talc Deposits, Howard N. Anderson
Bachelors Theses and Reports, 1928 - 1970
The purpose of this report is to collect geologic data concerning two Montana talc occurrences at Helena and Ennis and to offer some explanation as to their origin. The two deposits cited are in somewhat similar lithologic settings and both possess the same mineralogical and structural features. Because of this similarity only the Helena deposit is covered in detail.
Geology And Ore Deposits Of The Golden Messenger Mine, Lewis And Clark County, Helena, Montana., John C. Archibald Jr.
Geology And Ore Deposits Of The Golden Messenger Mine, Lewis And Clark County, Helena, Montana., John C. Archibald Jr.
Bachelors Theses and Reports, 1928 - 1970
The Golden Messenger Mine which is approximately twenty-three miles northeast of Helena, Montana, near York, on Trout Creek, has long presented several problems of both theoretical and practical interest.
Occurrence And Origin Of Placer Gold In Montana, John K. Halse
Occurrence And Origin Of Placer Gold In Montana, John K. Halse
Bachelors Theses and Reports, 1928 - 1970
From time immemorial man has used gold as a medium of exchange, a measure of value, as jewelry and for ornamentation. Placer gold has led directly or indirectly to the settlement of lands, California and Alaska being the two best known examples. It has led the way to the discovery of other important mineral wealth, the discovery of the copper and silver deposits at Butte, Montana and the discovery of the silver deposits at Cripple Creek, Colorado being two good examples.