Gold Mineralization

Author : Neil Phillips
Publisher : Springer Nature
Page : 294 pages
File Size : 50,7 Mb
Release : 2022-06-16
Category : Science
ISBN : 9789811630811

Get Book

Formation of Gold Deposits by Neil Phillips Pdf

This book addresses the origin of gold deposits to answer questions of science and curiosity. These answers contribute in turn to the improved exploration and mining of gold. Initially there is a summary of the methods used to address the genesis of gold deposits including some of the essential science and concepts. Five basic observations follow that apply to many gold deposits and need to be considered in any genetic ideas. Magmatic processes enriching gold are discussed followed by the role of aqueous fluids during gold deposit formation at elevated temperatures and pressures. Modifying effects after deposit formation include high-grade metamorphism, retrogression, weathering, and erosion. The main types of gold deposits are then explained within the spectrum of viable genetic ideas, with informal names for these examples that include gold-only, gold-plus, Carlin, slate-belt, epithermal, porphyry, iron oxide copper gold, and Archean greenstone. Case histories are included in which the role of gold geology contributed directly to discoveries—one example is at the province-scale and another at the goldfield-scale. Unlike other books on the subject, this one addresses virtually all gold deposit types rather than focusing on one type in isolation. The primary readership includes industry geologists, senior undergraduates, postgraduates, and those with some knowledge of science and an interest in the gold industry.

Author : Ted G. Theodore,Will N. Blair,John Thomas Nash
Publisher : Unknown
Page : 308 pages
File Size : 52,5 Mb
Release : 1987
Category : Geology
ISBN : UCSD:31822020667689

Get Book

Geology and Gold Mineralization of the Gold Basin-Lost Basin Mining Districts, Mohave County, Arizona by Ted G. Theodore,Will N. Blair,John Thomas Nash Pdf

Author : Paul Kibler Sims,Warren C. Day
Publisher : Unknown
Page : 28 pages
File Size : 55,5 Mb
Release : 1992
Category : Geology, Stratigraphic
ISBN : UOM:39015095006972

Get Book

A Regional Structural Model for Gold Mineralization in the Southern Part of the Archean Superior Province, United States by Paul Kibler Sims,Warren C. Day Pdf

The Canadian segment of the Archean Superior province is a major world source of lode gold. The gold deposits occur in or near regional transcurrent and oblique slip-shear deformation zones that comprise a conjugate set to a northwest- directed compression of the Superior province. These structures provided permeable pathways for the flow of large volumes of auriferous fluid derived from an external source. Historic gold production from the United States segment of the Superior province is modest, but the close similarity in the geologic environment of the United States and Canadian segments suggests that large gold deposits should be present in the U.S.A. An occurrence model largely based on known parameters of gold mineralization in Canada suggests that the greenstone-granite terranes of the Wawa and Wabigoon sub-provinces in the United States are favorable for important gold deposits. The model suggests that gold mineralization took place during or later than the transcurrent faulting and that it took place contemporaneously with emplacement of silica-undersaturated intrusions. The faulting occurred late in the igneous-tectonic history of the Superior province, about 2,690 Ma. Extensive, intense alteration comprising carbonitization, silicification, and sulfidization accompanied the gold mineralization. The relationships between alteration minerals and mineralized veins suggest a close temporal relationship between the alteration and gold mineralization processes. The proposed occurrence model for gold mineralization and the available data suggest that two broad regions of greenstone in the Archean Superior province in north-central United States are particularly favorable for gold deposits: (1) the Upper Peninsula of Michigan, and (2) northeastern Minnesota. The Ishpeming greenstone belt of the Wawa subprovince in Michigan contains the important Ropes deposit and several other known gold occurrences, and the Vermilion district (Wawa subprovince) in northeastern Minnesota contains highly anomalous gold in soils and minor known bedrock occurrences. Transcurrent faults in both areas should be favorable sites for gold mineralization

Author : Eoin Macdonald
Publisher : Elsevier
Page : 664 pages
File Size : 47,8 Mb
Release : 2007-02-21
Category : Technology & Engineering
ISBN : 9781845692544

Get Book

Handbook of Gold Exploration and Evaluation by Eoin Macdonald Pdf

Designed for geologists and engineers engaged specifically in the search for gold deposits of all types and as a reference for academics in higher schools of learning, Handbook of gold exploration and evaluation provides principles and detailed explanations that underpin the correct interpretation of day-to-day experience in the field. Problems are addressed with regard to the analysis, interpretation and understanding of the general framework within which both primary and secondary gold resources are explored, developed and exploited. Handbook of gold exploration and evaluation covers a comprehensive range of topics including the nature and history of gold, geology of gold ore deposits, gold deposition in the weathering environment, sedimentation and detrital gold, gold exploration, lateritic and placer gold sampling, mine planning and practise for shallow deposits, metallurgical processes and design, and evaluation, risk and feasibility. Covers the nature and history of gold Addresses problems with regard to the framework in which gold resources are explored, developed and exploited Discusses topics including the geology of gold ore deposits, metallurgical processes and design, evaluation, risk and feasibility

Author : Ross L. Sherlock
Publisher : Natural Resources Canada
Page : 13 pages
File Size : 54,7 Mb
Release : 2002
Category : Electronic
ISBN : 9780660187297

Get Book

Volcanic Relationships and Gold Mineralization in the Wolverine-Madrid Corridor, Hope Bay Volcanic Belt, Nunavut by Ross L. Sherlock Pdf

This paper reports the results of a detailed mapping program over an area of the Hope Bay volcanic belt, western Nunavut, carried out in conjunction with a detailed core-logging & alteration study of the Naartok gold deposit. The paper includes information on the regional geology, the geology of the belt, the history of mineral exploration in the area, and the lithology & stratigraphy of the area's volcanic & intrusive rocks. The final sections review structural geology, the observed structural & stratigraphic relations, the alteration of volcanic rocks, and the characteristics of gold mineralization in the Madrid area (location of the Naartok deposit) & Wolverine Lake area of the belt.

Author : Ken McCaffrey,Lidia Lonergan,Jamie Wilkinson
Publisher : Geological Society of London
Page : 340 pages
File Size : 52,8 Mb
Release : 1999
Category : Science
ISBN : 1862390347

Get Book

Fractures, Fluid Flow and Mineralization by Ken McCaffrey,Lidia Lonergan,Jamie Wilkinson Pdf

Hydrothermal mineralization is usually structurally controlled so it is important to understand the role of faulting and fracturing in enhancing rock permeability and facilitating fluid flow and mass transfer. This is the main theme of this interdisciplinary volume and the papers included are intended to provide an overview of current ideas at the interfaces of structural geology, fluid flow and mineralization research.

Author : Steffen Gerd Hagemann,Philip E. Brown
Publisher : Unknown
Page : 584 pages
File Size : 45,9 Mb
Release : 2000
Category : Gold
ISBN : UOM:39015053386507

Get Book

Gold in 2000 by Steffen Gerd Hagemann,Philip E. Brown Pdf

Author : Daniel Müller,David I. Groves
Publisher : Springer
Page : 225 pages
File Size : 47,6 Mb
Release : 2013-04-17
Category : Science
ISBN : 9783662009208

Get Book

Potassic Igneous Rocks and Associated Gold-Copper Mineralization by Daniel Müller,David I. Groves Pdf

In recent years, there has been increasing interest from geoscientists in potassic ig neous rocks. Academic geoscientists have been interested in their petrogenesis and their potential value in defining the tectonic setting of the terranes into which they were intruded, and exploration geoscientists have become increasingly interested in the association of these rocks with major epithermal gold and porphyry gold-copper deposits. Despite this current interest, there is no comprehensive textbook that deals with these aspects of potassic igneous rocks. This book redresses this situation by elucidating the characteristic features of potassic (high-K) igneous rocks, erecting a hierarchical scheme that allows interpre tation of their tectonic setting using whole-rock geochemistry, and investigating their associations with a variety of gold and copper-gold deposits, worldwide. About two thirds of the book is based on a PhD thesis by Dr Daniel Muller which was produced at the Key Centre for Strategic Mineral Deposits within the Department of Geology and Geophysics at The University of Western Australia under the supervision of Professor David Groves, the late Dr Nick Rock, Professor Eugen Stumpf!, Dr Wayne Taylor, and Dr Brendon Griffin. The remainder of the book has been compiled from the literature using the collective experience of the two authors. The book is dedi cated to the memory of Dr Rock who initiated the research project but died before its completion.

Author : Ulrich Kretschmar,Derek McBride
Publisher : Elsevier
Page : 350 pages
File Size : 47,6 Mb
Release : 2015-11-24
Category : Science
ISBN : 9780128032237

Get Book

The Metallogeny of Lode Gold Deposits by Ulrich Kretschmar,Derek McBride Pdf

The Metallogeny of Lode Gold Deposits: A Syngenetic Perspective is a synthesis of lode gold vein forming processes, addressing the commonality in similar worldwide deposits. The book’s empirical model incorporates widely known and accepted principles of ore deposition and shows how it applies in the volcanic-sedimentary greenstone belt environment. Several chapters detail outcrop maps and photos of field occurrences and textures. The interpretations flow directly from the authors’ field work, and are coupled with analyses of underlying physical processes. Utilizing detailed geological mapping, field work, and chemical analyses as the basis of a syngenetic formation mode, the text arms readers with the tools necessary to accurately analyze and interpret new data on the subject. This includes information on decoding the significance of asymmetry in vein formation, as well as the role of lamprophyres in gold camps, how Archean geology requires integration into a lode vein formation model, and how to develop an understanding of the worldwide applicability of gold cycles to lode vein formation and exploration and how it can be applied to deposits of all ages. Presents the first book to galvanize lode gold research into a single authoritative reference Simplifies the complexity of lode gold’s underlying processes and presents valid concepts surrounding the lode gold forming environment Features color figures, illustrations, and photos that enrich the content’s focus and aid in the retention of key concepts

Author : Daniel Müller,David I. Groves
Publisher : Springer
Page : 398 pages
File Size : 53,8 Mb
Release : 2018-06-11
Category : Science
ISBN : 9783319929798

Get Book

Potassic Igneous Rocks and Associated Gold-Copper Mineralization by Daniel Müller,David I. Groves Pdf

This book reviews the geochemical and petrological characteristics of potassic igneous rock complexes, and investigates the various tectonic settings in which these rocks occur. The authors provide an overview and classification of these rocks and elucidate the geochemical differences between barren and mineralized potassic igneous complexes. High-K rocks are genetically associated with a number of epithermal gold and porphyry copper-gold deposits. In recent years, there has also been growing recognition of an association of such rocks with iron-oxide copper-gold (IOCG) deposits, intrusion-related gold deposits (IRGDs) and Carlin-type gold deposits. This fifth updated and expanded edition incorporates new data and references from world-class copper and gold deposits worldwide. It also includes the latest publications on the petrogenesis of high-K magmatism and related mineral deposits. Numerous new representative ore photographs of the mineral deposits described are also included in the new edition. As such, the book offers a valuable guide not only for academic petrologists working on alkaline rocks, but also for exploration geologists prospecting for epithermal gold and/or porphyry copper-gold deposits in modern and ancient terrains.

Author : R. P. Foster
Publisher : Springer Science & Business Media
Page : 447 pages
File Size : 53,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461304975

Get Book

Gold metallogeny and exploration by R. P. Foster Pdf

Within the last decade, the high and continuing demand for gold has prompted a global gold rush on a scale never before seen, not even in the heady days of Ballarat, California and the Yukon. Gold is being sought on every continent and, with very few exceptions, in every country around the world. Such interest and fierce competition has demanded considerable innovation and improvement in exploration techniques paralleled by a rapid expansion of the geological database and consequent genetic modelling for the many different types of gold deposits now recognized. This proliferation of data has swamped the literature and left explorationist and academic alike unable to sift more than a small proportion of the accumulating information. This new book represents an attempt to address this major problem by providing succinct syntheses ofall major aspects ofgold metallogeny and exploration, ranging from the chemical distribution of gold in the Earth's crust, and the hydrothermal chemistry of gold, to Archaean and Phanerozoic lode deposits, epithermal environments, chemical sediments, and placer deposits, and culminates in chapters devoted to geochemical and geophysical exploration, and the economics of gold deposits. Each chapter is written by geoscientists who are acknowledged internationally in their respective fields, thus guaranteeing a broad yet up-to-date coverage. In addition, each chapter is accompanied by reference lists which provide readers with access to the most pertinent and useful publications.

Author : Tommy B. Thompson,Lewis Teal,Richard O. Meeuwig
Publisher : Unknown
Page : 216 pages
File Size : 46,5 Mb
Release : 2002
Category : Geology, Economic
ISBN : STANFORD:36105112151548

Get Book

Gold Deposits of the Carlin Trend by Tommy B. Thompson,Lewis Teal,Richard O. Meeuwig Pdf

Author : I.Y. Nekrasov
Publisher : Routledge
Page : 236 pages
File Size : 40,9 Mb
Release : 2018-05-02
Category : Science
ISBN : 9781351445634

Get Book

Geochemistry, Mineralogy and Genesis of Gold Deposits by I.Y. Nekrasov Pdf

The behaviour of gold in sedimentary, magmatic and postmagmatic processes are studied and 40 gold-bearing minerals including ten which were recently discovered are described. The results are presented of new experimental studies on phase relations in gold-sulphide systems. The solubility & form of gold migration in high-temperature chloride, sulphide and arsenic solutions are determined. Based on the new data, the genesis of gold deposits is studied and a geochemical classification proposed. This book is designed for specialists in the field of gold chemistry, geochemistry and mineralogy and for field geologists surveying and prospecting for gold.

Author : Fan Yang,Fei Xue,Gilby Jepson,Liang Zhang
Publisher : Frontiers Media SA
Page : 430 pages
File Size : 49,8 Mb
Release : 2023-07-31
Category : Science
ISBN : 9782832530443

Get Book

(Paleo-) Pacific Plate Subduction Tectonics and Related Magmatism and Mineralization by Fan Yang,Fei Xue,Gilby Jepson,Liang Zhang Pdf

Author : Kit Lai,Khin Zaw,Sean C. Johnson,Jung-Woo Park,Rui Wang
Publisher : Frontiers Media SA
Page : 302 pages
File Size : 43,8 Mb
Release : 2022-11-17
Category : Science
ISBN : 9782832506318

Get Book

Plate Subduction and Mineralization in East and Central Asia by Kit Lai,Khin Zaw,Sean C. Johnson,Jung-Woo Park,Rui Wang Pdf