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Author : Geological Survey of Canada
Publisher : Unknown
Page : 492 pages
File Size : 48,9 Mb
Release : 1900
Category : Electronic
ISBN : UIUC:30112046374481
Contents of each report may be found in "List of publications of the Geological survey of Canada. 1906."
Author : Vermont. State Geologist,Edward Hitchcock,Albert David Hager,Charles Henry Hitchcock
Publisher : Unknown
Page : 524 pages
File Size : 45,6 Mb
Release : 1861
Category : Geology
ISBN : HARVARD:32044103125373
Author : Geological Survey of Pennsylvania
Publisher : Unknown
Page : 144 pages
File Size : 46,8 Mb
Release : 1889
Category : Coal mines and mining
ISBN : MINN:31951000883237Z
Author : Geological Survey of Canada
Publisher : Unknown
Page : 1042 pages
File Size : 50,5 Mb
Release : 1908
Category : Geology
ISBN : UCAL:B4173246
Contents may be found in "List of publications of the Geological survey of Canada. 1906."
Author : Geological Survey of Canada
Publisher : Unknown
Page : 476 pages
File Size : 41,6 Mb
Release : 1880
Category : Geology
ISBN : STANFORD:36105019082663
Contents of each report may be found in "List of publications of the Geological survey of Canada. 1906."
Author : Frederick Prime
Publisher : Unknown
Page : 84 pages
File Size : 46,8 Mb
Release : 1879
Category : Geology
ISBN : CHI:102406601
Author : Geological Survey of Canada
Publisher : Unknown
Page : 496 pages
File Size : 48,8 Mb
Release : 1900
Category : Electronic
ISBN : HARVARD:32044102948759
Contents of each report may be found in "List of publications of the Geological survey of Canada. 1906."
Author : New Jersey. Geological survey, 1863-1915
Publisher : Unknown
Page : 638 pages
File Size : 42,5 Mb
Release : 1883
Category : Geology
ISBN : PSU:000060167705
Author : New Brunswick. Geological survey
Publisher : Unknown
Page : 266 pages
File Size : 47,6 Mb
Release : 1839
Category : Geology
ISBN : UOM:39015067154917
Author : Arthur M. Hussey
Publisher : Unknown
Page : 282 pages
File Size : 54,8 Mb
Release : 1974
Category : Geology
ISBN : STANFORD:36105031892248
Author : Anonim
Publisher : Unknown
Page : 224 pages
File Size : 48,6 Mb
Release : 1949
Category : Geology
ISBN : UCR:31210000050250
Author : Maurice H. Pease (Jr.)
Publisher : Unknown
Page : 28 pages
File Size : 46,7 Mb
Release : 1968
Category : Geology
ISBN : ERDC:35925000316064
A compilation of available geologic information.
Author : Derek Anthony Brown,Michael H. Gunning,Charles J. Greig
Publisher : Unknown
Page : 196 pages
File Size : 41,9 Mb
Release : 1996
Category : Science
ISBN : STANFORD:36105028740087
The Stikine project area covers part of a mineral-rich belt near the Alaska panhandle/British Columbia border. The area includes important precious and base metal deposits such as Eskay Creek, and was selected for this study due to its high mineral potential and outdated geological database. This report, the result of four seasons of mapping in the area (1988-91), describes the area's regional tectonic setting and stratigraphy, intrusive rocks, structural geology and metamorphism, and economic geology (types of mineral deposits, timing of regional metallogenic events, isotope geology, exploration activity, mineral potential).
Author : Don Herbert Rousell,G. Heather Brown
Publisher : Unknown
Page : 200 pages
File Size : 53,8 Mb
Release : 2009
Category : Geology
ISBN : 9781443510
We have prepared a comprehensive field guide, directed toward the general geologist and students, which covers all aspects of the bedrock geology and mineral deposits of the Sudbury area.
Author : K. J. Schulz
Publisher : Geological Survey
Page : 868 pages
File Size : 41,7 Mb
Release : 2017
Category : Industrial minerals
ISBN : 1411339916
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.