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Colloform gold in coal from southern Wales

Gayer, R. and Rickard, David 1994. Colloform gold in coal from southern Wales. Geology 22 (1) , pp. 35-38. 10.1130/0091-7613(1994)022%3C0035:CGICFS%3E2.3.CO;2

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Geochemically significant concentrations of particulate gold in the Westphalian coals of the South Wales coalfield are situated on the coal cleat and are associated with a complex sulfide assemblage. Gold grains up to 100 μm long and more than 20 μm thick display a colloform microtexture, suggesting an origin through late Variscan, low-temperature ground-water circulation. These discoveries provide additional constraints on the timing and rates of coal evolution.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Earth and Ocean Sciences
Publisher: Geological Society of America
ISSN: 0091-7613
Last Modified: 27 Feb 2019 16:56

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