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phillips neil - formation of gold deposits

Formation of Gold Deposits




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Dettagli

Genere:Libro
Lingua: Inglese
Editore:

Springer

Pubblicazione: 06/2022
Edizione: 1st ed. 2022





Trama

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.





Sommario

Part A. Introduction

1. Introduction
2. Mining and the nature of gold deposits
3. Data to processes, examples, and discovery

Part B. Five characteristics of gold deposits that reveal their formation and lead to exploration success

4. Provinciality of goldfields 
5. Enrichment of gold above background
6. Segregation of gold from base metals
7. Timing of deposit formation
8. Ore fluid types as recorded in fluid inclusions
9. Commonality and diversity: both need explanation

Part C. Crustal processes that form and subsequently modify gold-only deposits

10. Magmatic processes that lead to gold-only deposits
11. Fluids in the earth’s crust
12. Alteration in gold-only deposits
13. Case study: the formation of a giant goldfield: Kalgoorlie, Western Australia
14. Hydrothermal transport of gold
15. Metamorphic processes leading to gold-only deposits
16. Modification of deposits at high temperature
17. Formation and modification of deposits at lower temperatures

Part D. Examples of gold deposits

18. Carlin, Witwatersrand and some other gold-only examples
19. Gold-plus Copper-Gold deposits

Part E. Discovery case histories and the role of science

20. Discoveries and the role of science in the Yilgarn goldfields of Western Australia
21. Discovery of Fosterville Deeps, Victorian Gold Province: long term science
22. Summary and conclusions

Appendices
Index





Autore

Neil Phillips graduated in geoscience from the University of Melbourne (BSc) and Monash University (BSc Hons, PhD) where his thesis was on the metamorphism and geochemistry at Broken Hill, Australia. He subsequently completed the Advanced Management Program at Harvard Business School.

At the University of Western Australia, he co-founded the Archean Gold Group in 1980 with David Groves as they pioneered many of the geological principles used in gold exploration today. Two years were then spent engaged in underground mapping of the Golden Mile in the Kalgoorlie goldfield. He joined the University of Witwatersrand in Johannesburg and established research projects at all the operating Witwatersrand gold mines and continues that research focus and interest today. He was subsequently Professor of Economic Geology at James Cook University where he developed the extended field programs in the Cloncurry – Mt. Isa region.

As a consultant in Kalgoorlie for Minsaco Resources and then General Manager for Great Central Mines, he led the geological development of the Yandal gold province north of Kalgoorlie in a role that included teaching, research, and mentoring with teams of mine and exploration geologists.

Honorary professorial appointments at the University of Melbourne, Monash University, and Stellenbosch University in South Africa have involved collaborative research, valorisation of this research through community engagement, and leadership of the Melbourne Geology of Gold course since 1995 and a similar course on gold in South Africa.

Neil was editor of the Applied Earth Science journal for ten years from 2010, regularly publishes in scientific journals, and has written and edited several books on geoscience and cross-country navigation. He was President of the International Rogaining Federation 1989-2013 and co-author of three books on the sport of rogaining. Neil was editor of the AusIMM Australian Ore Deposit monograph in 2017 leading 350 authors and reviewers in a volume describing 200 mineral deposits.











Altre Informazioni

ISBN:

9789811630804

Condizione: Nuovo
Collana: Modern Approaches in Solid Earth Sciences
Dimensioni: 254 x 178 mm Ø 801 gr
Formato: Copertina rigida
Illustration Notes:XXVII, 291 p. 1 illus.
Pagine Arabe: 291
Pagine Romane: xxvii


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