The Role of Carbonaceous Material in the Formation of Macraes Orogenic Gold Deposit, New Zealand
Access Status
Open access
Authors
Hu, Si-Yu
Date
2016Supervisor
Assoc. Prof. Katy Evans
Dr Kirsten Rempel
Prof. Kliti Grice
Type
Thesis
Award
PhD
Metadata
Show full item recordFaculty
Science and Engineering
School
Applied Geology
Collection
Abstract
The PhD project investigated the role of carbonaceous material in the formation of Macraes orogenic gold deposits. It provided the first evidence that in-situ carbonaceous material directly contributes to Au incorporation into polyframboids which may provide the source of Au for the Macraes gold deposit; that carbonaceous material in mineralized rocks of gold deposit is most likely hydrothermally deposited and contributes to Au precipitation indirectly; and that dodecanethiol may transport Au in hydrothermal systems.
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Hu, Siyu; Evans, Katy; Craw, D.; Rempel, Kirsten; Grice, Kliti (2017)Carbonaceous material (CM) is commonly associated with gold and sulfides in metasediment-hosted orogenic gold deposits. The role of CM in Au deposition is controversial; CM has been proposed to contribute to gold deposition ...