The Patterned Peatlands of Minnesota PDF Download

Author: Herbert Edgar Wright
Publisher: U of Minnesota Press
ISBN: 9781452903057
Category : Human ecology
Languages : en
Pages : 506

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Book Description

Author: William Harvey Emmons
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 168

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Book Description

Author: K. J. Schulz
Publisher: Geological Survey
ISBN: 9781411339910
Category : Business & Economics
Languages : en
Pages : 868

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Book Description
As the importance and dependence of specific mineral commodities increase, so does concern about their supply. The United States is currently 100 percent reliant on foreign sources for 20 mineral commodities and imports the majority of its supply of more than 50 mineral commodities. Mineral commodities that have important uses and face potential supply disruption are critical to American economic and national security. However, a mineral commodity's importance and the nature of its supply chain can change with time; a mineral commodity that may not have been considered critical 25 years ago may be critical today, and one considered critical today may not be so in the future. The U.S. Geological Survey has produced this volume to describe a select group of mineral commodities currently critical to our economy and security. For each mineral commodity covered, the authors provide a comprehensive look at (1) the commodity's use; (2) the geology and global distribution of the mineral deposit types that account for the present and possible future supply of the commodity; (3) the current status of production, reserves, and resources in the United States and globally; and (4) environmental considerations related to the commodity's production from different types of mineral deposits. The volume describes U.S. critical mineral resources in a global context, for no country can be self-sufficient for all its mineral commodity needs, and the United States will always rely on global mineral commodity supply chains. This volume provides the scientific understanding of critical mineral resources required for informed decisionmaking by those responsible for ensuring that the United States has a secure and sustainable supply of mineral commodities.

Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Digital images
Languages : en
Pages : 970

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Author:
Publisher:
ISBN:
Category : Crystalline rocks
Languages : en
Pages : 424

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Book Description

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309112826
Category : Political Science
Languages : en
Pages : 263

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Book Description
Minerals are part of virtually every product we use. Common examples include copper used in electrical wiring and titanium used to make airplane frames and paint pigments. The Information Age has ushered in a number of new mineral uses in a number of products including cell phones (e.g., tantalum) and liquid crystal displays (e.g., indium). For some minerals, such as the platinum group metals used to make cataytic converters in cars, there is no substitute. If the supply of any given mineral were to become restricted, consumers and sectors of the U.S. economy could be significantly affected. Risks to minerals supplies can include a sudden increase in demand or the possibility that natural ores can be exhausted or become too difficult to extract. Minerals are more vulnerable to supply restrictions if they come from a limited number of mines, mining companies, or nations. Baseline information on minerals is currently collected at the federal level, but no established methodology has existed to identify potentially critical minerals. This book develops such a methodology and suggests an enhanced federal initiative to collect and analyze the additional data needed to support this type of tool.

Author: Renee Bouplon
Publisher:
ISBN: 9780943915258
Category : Conservation easements
Languages : en
Pages : 350

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Book Description

Author: Eberhardt William Heinrich
Publisher:
ISBN:
Category : Mineralogy
Languages : en
Pages : 260

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Book Description
Foreword: Michigan has a long and varied geologic history that includes repeated episodes of volcanism, mountain building, deposition of marine and terrestrial sediments, and glaciations. As a result, we have been endowed with a rich and diverse assemblage of minerals. Appreciation of Michigan's mineral resources began well before the first Europeans set foot here. When Michigan became a state in 1837, one of the first actions of the fledgling legislature was to establish a geological survey of the state, to "furnish a full and scientific description of its rocks, soils, and minerals and provide specimens of the same" Our mineral resources have been studied, categorized, and evaluated for many years, and we continue to learn more about them today. Michigan minerals helped to build the state and nation, and they continue to be an important industrial and commercial resource, a fertile subject for academic study, and a source of fascination and enjoyment for countless hobbyists.

Author: Edward W. Davis
Publisher: Minnesota Historical Society Press
ISBN: 9780873514965
Category : History
Languages : en
Pages : 308

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Book Description
With humor and insight, E. W. Davis tells the story that begins with the discovery of then-valueless taconite on Minnesota's Mesabi Iron Range in 1870 and several decades of attempts to process taconite commercially. Davis details the ups and downs of the exciting, decades-long research effort that resulted in a workable extraction method, followed by frustrating attempts to form the concentrate into small pellets. Finally, Davis describes building the first successful commercial processing plant at Silver Bay in the 1950s and the contributions by various companies to the birth of the industry. Along the way insider Davis recounts the founding of the three new northern Minnesota taconite towns, Babbitt, Silver Bay, and Hoyt Lakes.

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309169836
Category : Science
Languages : en
Pages : 102

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Book Description
The Office of Industrial Technologies (OIT) of the U. S. Department of Energy commissioned the National Research Council (NRC) to undertake a study on required technologies for the Mining Industries of the Future Program to complement information provided to the program by the National Mining Association. Subsequently, the National Institute for Occupational Safety and Health also became a sponsor of this study, and the Statement of Task was expanded to include health and safety. The overall objectives of this study are: (a) to review available information on the U.S. mining industry; (b) to identify critical research and development needs related to the exploration, mining, and processing of coal, minerals, and metals; and (c) to examine the federal contribution to research and development in mining processes.