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Archean Base and Precious Metal Deposits, Southern Abitibi Greenstone Belt, Canada

Society of Economic Geologists

Archean Base and Precious Metal Deposits, Southern Abitibi Greenstone Belt, Canada

Author(s)

Society of Economic Geologists

Volume

19

DOI:

https://doi.org/10.5382/Rev.19

Copyright:

Society of Economic Geologists, Inc.

© Society of Economic Geologists ISBN 9781629491172$20

ISBN electronic:

9781629491172

ISBN print:

9781629492209

Publication date:

January 01, 2017

Book Chapter

Chapter 9: Geology and Hydrothermal Alteration of the World-Class Canadian Malartic Gold Deposit: Genesis of an Archean Stockwork-Disseminated Gold Deposit in the Abitibi Greenstone Belt

Author(s)

Stéphane De Souza

Stéphane De Souza

¹Geological Survey of Canada, 490 rue de la Couronne, Québec, Quebec G1K 9A9, Canada

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;

Benoît Dubé

¹Geological Survey of Canada, 490 rue de la Couronne, Québec, Quebec G1K 9A9, Canada

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;

Vicki McNicoll

²Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario K1A 0A8, Canada

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;

Céline Dupuis

¹Geological Survey of Canada, 490 rue de la Couronne, Québec, Quebec G1K 9A9, Canada

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;

Patrick Mercier-Langevin

Patrick Mercier-Langevin

¹Geological Survey of Canada, 490 rue de la Couronne, Québec, Quebec G1K 9A9, Canada

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;

Robert A. Creaser

Robert A. Creaser

³Department of Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, Edmonton, Alberta T6G 2E3, Canada

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;

Ingrid Kjarsgaard

Ingrid Kjarsgaard

⁴15 Scotia Place, Ottawa, Ontario K1S 0W2, Canada

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Doi:

https://doi.org/10.5382/Rev.19.09

Published:

January 01, 2017

Abstract

The Canadian Malartic low-grade bulk tonnage gold mine (total production and reserves of 303.3 t or 10.7 Moz at 0.97 g/t) is located in the Archean Abitibi greenstone belt, immediately south of the crustal-scale Larder Lake-Cadillac fault zone. The deposit is predominantly hosted in clastic metasedimentary rocks of the Pontiac Group and, to a lesser extent, in subalkaline porphyritic quartz monzodiorite and granodiorite. The quartz monzodiorite and granodiorite yielded syn-Timiskaming U-Pb ID-TIMS zircon ages of 2677.8 ± 1.5 and 2678.4 ± 1.7 Ma, respectively. The ore, which is characterized by a Au-Te-W-S-Bi-Ag ± Pb ± Mo metallic signature, mainly...

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