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Author : A. B. Christie,R. L. Brathwaite
Publisher : Unknown
Page : 384 pages
File Size : 45,7 Mb
Release : 2006
Category : Geology
ISBN : CORNELL:31924104762053
Author : Mark P. Simpson,A. B. Christie
Publisher : Unknown
Page : 45 pages
File Size : 46,9 Mb
Release : 2016
Category : Geology
ISBN : 198850029X
Author : Gordon John Williams
Publisher : Unknown
Page : 248 pages
File Size : 52,8 Mb
Release : 1989
Category : Geology
ISBN : UCSD:31822005683297
A collection of papers summarising the results of mineral exploration in New Zealand 1974-87.
Author : Dave Craw,Doug MacKenzie
Publisher : Springer
Page : 127 pages
File Size : 53,8 Mb
Release : 2016-08-10
Category : Science
ISBN : 9783319351582
This book describes the nature and origin of the Macraes gold deposit. It also documents the key features of this spectacular deposit for a wide range of professionals in the resource geology community. This world-class gold deposit has been a spectacular geological and economic success story, as it has developed from a small historical gold mine in discontinuous quartz veins measuring only meters to a large-scale mine in deposits spreading over kilometres in extensive disseminated gold-bearing rock.
Author : Franco Pirajno
Publisher : Springer Science & Business Media
Page : 1250 pages
File Size : 45,6 Mb
Release : 2008-10-14
Category : Science
ISBN : 9781402086137
Hydrothermal processes on Earth have played an important role in the evolution of our planet. These processes link the lithosphere, hydrosphere and biosphere in continuously evolving dynamic systems. Terrestrial hydrothermal processes have been active since water condensed to form the hydrosphere, most probably from about 4.4 Ga. The circulation of hot aqueous solution (hydrothermal systems) at, and below, the Earth’s surface is ultimately driven by magmatic heat. This book presents an in-depth review of hydrothermal proceses and systems that form beneath the oceans and in intracontinental rifts, continental margins and magmatic arcs. The interaction of hydrothermal fluids with rockwalls, the hydrophere and the biophere, together with changes in their composition through time and space, contribute to the formation of a wide range of mineral deposit types and associated wallrock alteration. On Earth, sites of hydrothermal activity support varied ecosystems based on a range of chemotrophic microorganisms both at surface and in the subsurface. This book also provides an overview of hydrothermal systems associated with meteorite impacts and explores the possibility that hydrothermal processes operate on other terrestrial planets, such as Mars, or satellites of the outer planets such as Titan and Europa. Possible analogues of extraterrestrial putative hydrothermal processes pose the intriguing question of whether primitive life, as we know it, may exist or existed in these planetary bodies. Audience: This volume will be of interest to scientists and researchers in geosciences and life sciences departments, as well as to professionals and scientists involved in mining and mineral exploration.
Author : Anonim
Publisher : Unknown
Page : 294 pages
File Size : 49,7 Mb
Release : 2002
Category : Gold ores
ISBN : STANFORD:36105113317593
Author : New Zealand Geological Survey
Publisher : Unknown
Page : 492 pages
File Size : 42,9 Mb
Release : 1888
Category : Geology
ISBN : PRNC:32101042912418
Author : Franco Pirajno
Publisher : Springer Science & Business Media
Page : 689 pages
File Size : 51,6 Mb
Release : 2012-08-13
Category : Science
ISBN : 9789400744448
Extensive descriptions of a wide range of key or world-class mineral deposits of China are presented in the context of the country’s general geology, tectonic units and mineral systems and their geodynamic evolution within the tectonic framework of the Asian continent. This comprehensive overview, incorporating the latest geological concepts, is the first such coverage written in English by a western expert, and will be of benefit to mineral explorers and miners, as well as to research scientists and students in institutions of higher education. In his compilation of this compendium of Chinese geology and mineral systems, Franco Pirajno draws on first-hand knowledge of China’s geology and mineral deposits gained in numerous field visits and research projects with Chinese colleagues from various academic institutions over the past 18 years. First time that a western-based book on China’s geology and mineral deposits is published Appropriate for use by the mineral exploration industry Modern English-language geological and mineral deposits information on China Most useful to Western (and Chinese) geoscientists
Author : Anonim
Publisher : Unknown
Page : 60 pages
File Size : 52,9 Mb
Release : 2001
Category : Geochemical prospecting
ISBN : STANFORD:36105110990574
Author : Anonim
Publisher : Unknown
Page : 1298 pages
File Size : 53,5 Mb
Release : 1963
Category : New Zealand
ISBN : UCAL:B3280066
Author : K. J. Schulz
Publisher : Geological Survey
Page : 868 pages
File Size : 51,7 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.
Author : Anonim
Publisher : Unknown
Page : 476 pages
File Size : 41,8 Mb
Release : 2009
Category : Geology
ISBN : UIUC:30112083046281
Author : P.S. Garofalo,J.R. Ridley
Publisher : Geological Society of London
Page : 266 pages
File Size : 42,8 Mb
Release : 2014-09-16
Category : Science
ISBN : 9781862396579
Hydrothermal ore deposits that are exploited for gold include both gold-only deposits, such as orogenic deposits, and gold-bearing examples of the common hydrothermal deposits types that are formed around upper-crustal magmatic centres, in particular porphyry and epithermal deposits. Fluid-inclusion data have shown that ore fluids of gold-only deposits are compositionally distinct compared to fluids of other deposit types. This Special Publication includes an up-to-date summary of thermodynamic parameters of aqueous Au species at high temperatures and pressures; a dataset of fluid inclusion properties and compositions from orogenic deposits of different parts of the world; several comprehensive case studies of different types of gold deposits and their fluids from USA, Brazil, Egypt, Slovakia and Bulgaria; and numerical modelling aimed to define key parameters that affect fluid flow and gold deposition at a range of scales.
Author : Donald Alexander Berkman,David H. Mackenzie
Publisher : Unknown
Page : 936 pages
File Size : 49,7 Mb
Release : 1998
Category : Geology
ISBN : STANFORD:36105023162808
Author : Richard Graham Barker
Publisher : Unknown
Page : 150 pages
File Size : 44,6 Mb
Release : 2006
Category : Mines and mineral resources
ISBN : STANFORD:36105123188984
