The Salt Lake Mining Review
Author:
Publisher:
Published: 1909
Total Pages: 1198
ISBN-13:
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Author:
Publisher:
Published: 1909
Total Pages: 1198
ISBN-13:
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Publisher:
Published: 1971
Total Pages: 111
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DOWNLOAD EBOOKAuthor: Utah Mining Association
Publisher:
Published: 1959
Total Pages: 132
ISBN-13:
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Publisher:
Published: 1903
Total Pages: 2030
ISBN-13:
DOWNLOAD EBOOKAuthor: Hellmut H. Doelling
Publisher: Utah Geological Survey
Published: 1980
Total Pages: 260
ISBN-13:
DOWNLOAD EBOOKBox Elder County displays a variety of lithologic types in each of the major rock divisions: sedimentary, igneous, and metamorphic, in a typical Basin and Range setting. True to the basic structure most of its mountain ranges generally trend north-south, but the Raft River Range trends east-west. Each mountain range exhibits a variety of structural situations: most stratigraphic units are folded and faulted, and many are intruded by igneous rocks. 251 pages + 3 plates
Author: Clark C. Spence
Publisher: University Press of Colorado
Published: 2016-06-15
Total Pages: 342
ISBN-13: 160732475X
DOWNLOAD EBOOKA History of Gold Dredging in Idaho tells the story of a revolution in placer mining—and its subsequent impact on the state of Idaho—from its inception in the early 1880s until its demise in the early 1960s. Idaho was the nation’s fourth-leading producer of dredged gold after 1910 and therefore provides an excellent lens through which to observe the practice and history of gold dredging. Author Clark Spence focuses on the two most important types of dredges in the state—the bucket-line dredge and the dragline dredge—and describes their financing, operation, problems, and effect on the state and environment. These dredges made it possible to work ground previously deemed untouchable because bedrock where gold collected could now be reached. But they were also highly destructive to the environment. As these huge machines floated along, they dumped debris that harmed the streams and destroyed wildlife habitat, eventually prompting state regulations and federal restoration of some of the state’s crippled waterways. Providing a record of Idaho’s dredging history for the first time, this book is a significant contribution to the knowledge and understanding of Western mining, its technology, and its overall development as a major industry of the twentieth century.
Author: United States. Bureau of Mines
Publisher:
Published: 1960
Total Pages: 332
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Bureau of Mines
Publisher:
Published: 1960
Total Pages: 336
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Bureau of Mines
Publisher:
Published: 1960
Total Pages: 328
ISBN-13:
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