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Author:
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 1198
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Book Description
Author:
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 1198
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 111
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Book Description
Author:
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 111
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Book Description
Author: Utah Mining Association
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 132
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Book Description
Author: Hellmut H. Doelling
Publisher: Utah Geological Survey
ISBN:
Category : Geology
Languages : en
Pages : 260
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Book Description
Box 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
ISBN: 160732475X
Category : History
Languages : en
Pages : 342
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Book Description
A 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:
ISBN:
Category : Mineral industries
Languages : en
Pages : 332
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Book Description
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 336
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Book Description
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 328
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Book Description
Author:
Publisher: NV Bureau of Mines & Geology
ISBN:
Category :
Languages : en
Pages : 136
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Book Description
