Geochemical Exploration Techniques Based on Distribution of Selected Elements in Rocks, Soils, and Plants, Vekol Porphyry Copper Deposit Area, Pinal County, Arizona PDF Download
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Author: Maurice A. Chaffee Publisher: ISBN: Category : Copper ores Languages : en Pages : 92
Book Description
A comparison and evaluation of some different types of samples that may be useful for geochemical prospecting for copper in the semiarid environment.
Author: Maurice A. Chaffee Publisher: ISBN: Category : Copper ores Languages : en Pages : 92
Book Description
A comparison and evaluation of some different types of samples that may be useful for geochemical prospecting for copper in the semiarid environment.
Author: James P. Minard Publisher: ISBN: Category : Geology Languages : en Pages : 440
Book Description
A description of Coastal Plain formations which are lithologically comparable with correlative units at least as far southwest as eastern Maryland.
Author: K. J. Schulz Publisher: Geological Survey ISBN: 9781411339910 Category : Business & Economics Languages : en Pages : 868
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: Maurice A. Chaffee
Author: Maurice A. Chaffee
Author: Geological Survey (U.S.)
Author: Geological Survey (U.S.)
Author: 
Author: Geological Survey (U.S.)
Author: 
Author: James P. Minard
Author: 
Author: Richard M. Tosdal
Author: K. J. Schulz