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Formation of Gold Deposits (Modern Approaches in Solid Earth Sciences)

SKU: 9789811630804

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Formation of Gold Deposits (Modern Approaches in Solid Earth Sciences), A. K. Tyagi, 9789811630804

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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

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