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Author: D. I. Cole
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 60
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Book Description
Author: D. I. Cole
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 60
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Book Description
Author: Geological Survey (South Africa)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 168
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Book Description
Author: Council for Geoscience (South Africa)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 162
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Book Description
Author: Peter Laznicka
Publisher: Elsevier
ISBN: 148325691X
Category : Nature
Languages : en
Pages : 761
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Book Description
Empirical Metallogeny: Depositional Environments, Lithologic Associations, and Metallic Ores, Vol. 1: Phanerozoic Environments, Associations, and Deposits, Part B focuses on the composition, characteristics, properties, and reactions of Phanerozoic metallic ore deposits. The book first offers information on intracrustal and subcrustal environments and plutonic granite, diorite, (gabbro) association (GDG) and its aureole. Discussions focus on petrography, origin, and setting of GDG plutonic rocks; mineralization styles associated with Phanerozoic (higher-level) granite, diorite, (gabbro) association; copper skarns and carbonate replacements; and magnetite skarn and replacement deposits. Manganese, uranium, antimony, mercury, and arsenic deposits, hydrothermal iron ores, and hydrothermal-plutonic silver deposits are also discussed. The publication also takes a look at high- to medium-grade metamorphosed terrains, katazonal granites and pegmatites and continental fragmentation, rifts, and paleo-rifts. Topics include examples of modern rift and taphrogenic systems; mineralization styles in and related to the zone of ultrametamorphism and granitization; and petrography, origin, and setting of high-grade metamorphic terrains. The text is a valuable reference for readers interested in the study of Phanerozoic metallic ore deposits.
Author: J.G. De Geoffroy
Publisher: Springer Science & Business Media
ISBN: 1461318610
Category : Science
Languages : en
Pages : 443
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Book Description
After the spectacular successes of the 1960's and 1970's, the mineral exploration business is at a crossroads, facing uncertain t:imes in the decades ahead. This situation requires a re-thinking of the philosophy guiding mineral exploration if it is to emulate its recent performance. The ma:i. n argument of a previous volume titled "Designing Opt:lmal Strategies for Mineral Exploration", published in 1985 by Plenum Publishing Corporation of New York, is that a possible answer to the challenge facing mineral explorationists lies in the philosophy of opt:irn1zation. This new approach should help exploration staff make the best achievable use of the sophisticated and costly technology which is presently available for the detection of ore deposits. The main emphasis of the present volume is placed on the mathematical and computational aspects of the opt:irn1zation of mineral exploration. The seven chapters making up the ma:i. n body of the book are devoted to the description and application of various types of computerized geomathematical models which underpin the optimization of the mineral exploration sequence. The topics covered include: (a) the opt:lmal selection of ore deposit types and regions of search, as well as prospecting areas within the regions (Chapters 2, 3, 4, 6), (b) the designing of airborne and ground field programs for the opt:lmal coverage of prospecting areas (Chapters 2, 3, 4), (c) delineation and evaluation of exploration targets within prospecting areas by means of opt:irn1zed models (Chapter 5).
Author: M. Hale
Publisher: Elsevier
ISBN: 1483290468
Category : Science
Languages : en
Pages : 793
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Book Description
The considerable exploration success achieved by geochemistry over the last several decades - and still continuing - has provided both the basis and rationale for the Handbook of Exploration Geochemistry series, including Volume 6, Drainage Geochemistry in Mineral Exploration. With contributions from 25 experts of truly global professional experience in drainage geochemistry, this book is a thorough appraisal of the state of the art in the use of surface and sub-surface waters, stream and lake sediments, heavy minerals for mineral exploration in tropical rain forests, temperate glaciated terrains, mountain chains, arid deserts and regions of agricultural and industrial pollution. Additional attention is given to gold and uranium exploration, and to the growing role of drainage geochemistry as a multi-purpose environmental mapping technique with applications in human health studies, ore deposit modelling and pollution monitoring. It comprises 16 chapters, more than 250 figures and a bibliography of some 1600 references. This book is the most extensive and detailed single work on the principles and applications of drainage geochemistry in mineral exploration blending both theoretical considerations and practical implementations.
Author: Frederick Lin Sutherland
Publisher: MDPI
ISBN: 3039436155
Category : Science
Languages : en
Pages : 234
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Book Description
Ruby, red corundum, is a gem mineral with mineral properties, gem characteristics and chemistry that are reliant on critical trace element substitutions in its aluminum oxide crystal structure. Ruby has attracted scientific and economic interest. It has already been studied extensively regarding its widespread global distribution and the diversity of its geological associations, as revealed by exploration and exploitation. Researchers are becoming increasingly aware that geographic typing of ruby characteristics and its host assemblages may guide further exploration and provide checks on reputed sources of both rough and cut stones. Genetic pointers, based on fluid and solid mineral inclusions, oxygen and other isotope values and pressure and temperature estimates, have already yielded much genetic information. Rare ruby in mantle xenoliths, TP ~1100o C, 2GPa, epitaxial diamond in ruby and ruby in diamond have special interest. Amid the present extensive documentation on this singular gem mineral, new insights and co-existing associations remain to be discovered. Although ruby largely appears in metamorphic and metasomatic source rocks, newer studies suggest it may also arise from magmatic sources. Age-dating of a range of mineral inclusions in ruby now allows more precise modelling of ruby genesis. Tectonic aspects of ruby genesis related to early collisional plate events on Earth are also a frontier for further understanding. In addition, ruby growth remains an important phase in metamorphic studies of events in some young collisional zones. This Special Issue planned for Minerals aims to attract further studies on this multi-origin gem mineral. Investigations at the ‘economic border’ of ruby and sapphire nomenclature and relevant treatments affecting ruby color will be considered.
Author: P. W. Woll
Publisher:
ISBN:
Category : Asbestos
Languages : en
Pages : 420
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Book Description
A study of the origins of some ultramafic igneous rocks, of their alteration products--serpentinite, chrysotile asbestos, steatite, talc-carbonate rock, and carbonate-quartz-rock--and of the contact rock associations.
Author: Council for Geoscience (South Africa)
Publisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 270
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Book Description
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 422
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Book Description
