Geological Survey of Canada, Current Research (Online) no. 2002-E8 PDF Download
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Author:
Publisher: Natural Resources Canada
ISBN: 0662324633
Category :
Languages : en
Pages : 14
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Book Description
Author:
Publisher: Natural Resources Canada
ISBN: 0662324633
Category :
Languages : en
Pages : 14
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Book Description
Author: Nicole Scromeda-Perez
Publisher: Natural Resources Canada
ISBN: 0660187264
Category :
Languages : en
Pages : 8
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Book Description
Formation resistivity factor and pore-surface resistivity values were determined for three mineralized & nonmineralized rock samples from the Giant mine & Con mine areas of the Yellowknife mining district. The purpose was to provide basic information required to understand the electrical conductivity mechanisms of these rocks and to aid interpretation of geophysical surveys conducted in these areas. This paper describes the methods & processes used to obtain the formation factor data & to document the results for use in future studies.
Author: Shauna Connell
Publisher: Natural Resources Canada
ISBN: 0660187256
Category : Metamorphic rocks
Languages : en
Pages : 8
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Book Description
The purpose of this paper is to document results of electrical resistivity determinations of mineralized sericite schist specimens cut from a single sample collected from the Gold Lake area, Northwest Territories. Resistivity results are presented for frequencies of one hertz to one megahertz and for various orientations within the specimens. The results have application in interpreting ground electromagnetic surveys that are being conducted in the area.
Author: Richard C. Berg
Publisher:
ISBN:
Category : Geological mapping
Languages : en
Pages : 104
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Book Description
Author: D. E. Ames
Publisher: Natural Resources Canada
ISBN: 0662324390
Category : Geology
Languages : en
Pages : 9
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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:
Publisher: Natural Resources Canada
ISBN: 0662324463
Category : Geology
Languages : en
Pages : 13
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Book Description
Author:
Publisher: Natural Resources Canada
ISBN: 0662324412
Category : Geology, Stratigraphic
Languages : en
Pages : 16
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Book Description
Author: Sharon E. Kroening
Publisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 122
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Book Description
Author:
Publisher: Natural Resources Canada
ISBN: 0662324730
Category :
Languages : en
Pages : 7
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Book Description
