Detecting hydrothermal graphite deposition during metamorphism and gold mineralization
Detecting hydrothermal graphite deposition during metamorphism and gold mineralization
Fourier Transform IR analyses of carbonaceous material from the Otago and Alpine Schists and the Macraes gold deposit of the South Island, New Zealand, show the progressive effects of graphitization during metamorphism and suggest that the majority of carbonaceous material identified at the Macraes deposit precipitated from hydrothermal fluids. Given that the distinction of sedimentary carbonaceous material from fluid-precipitated graphite is a key to better understanding the redox state of crustal rocks, ore depositional processes and the extent of carbon cycling in the crust, this study highlights the importance of IR spectroscopy in the characterization of reduced carbon-bearing rocks.
429-432
Pitcairn, I.K.
fc7fc820-5cd9-4070-9623-23325563bc9f
Roberts, S.
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Teagle, D.A.H.
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Craw, D.
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2005
Pitcairn, I.K.
fc7fc820-5cd9-4070-9623-23325563bc9f
Roberts, S.
f095c7ab-a37b-4064-8a41-ae4820832856
Teagle, D.A.H.
396539c5-acbe-4dfa-bb9b-94af878fe286
Craw, D.
0479338f-1550-4606-9f73-bcdeffe71d38
Pitcairn, I.K., Roberts, S., Teagle, D.A.H. and Craw, D.
(2005)
Detecting hydrothermal graphite deposition during metamorphism and gold mineralization.
Journal of the Geological Society, 162 (3), .
(doi:10.1144/0016-764904-139).
Abstract
Fourier Transform IR analyses of carbonaceous material from the Otago and Alpine Schists and the Macraes gold deposit of the South Island, New Zealand, show the progressive effects of graphitization during metamorphism and suggest that the majority of carbonaceous material identified at the Macraes deposit precipitated from hydrothermal fluids. Given that the distinction of sedimentary carbonaceous material from fluid-precipitated graphite is a key to better understanding the redox state of crustal rocks, ore depositional processes and the extent of carbon cycling in the crust, this study highlights the importance of IR spectroscopy in the characterization of reduced carbon-bearing rocks.
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Published date: 2005
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Local EPrints ID: 15680
URI: http://eprints.soton.ac.uk/id/eprint/15680
ISSN: 0016-7649
PURE UUID: 870cc13b-940c-4b19-9171-f6ef1d354fe9
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Date deposited: 13 May 2005
Last modified: 16 Mar 2024 03:14
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Author:
I.K. Pitcairn
Author:
D. Craw
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