Hydrothermal footprint of the Birthday Reef, Reefton goldfield, New Zealand

The Birthday Reef was the most productive gold producer during historic mining of the Reefton goldfield on the west coast of the South Island of New Zealand. Deep exploration drill holes (up to 1.6 km long) intersected the mineralised quartz vein zone and adjacent hydrothermal alteration halo beneat...

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Bibliographic Details
Published in:New Zealand journal of geology and geophysics 2017-04, Vol.60 (2), p.59-72
Main Authors: Hamisi, Jonathan, MacKenzie, Doug, Pitcairn, Iain, Blakemore, Hamish, Zack, Thomas, Craw, Dave
Format: Article
Language:English
Subjects:
alpine schists
alteration
arsenic
australia
central victoria
Earth and Related Environmental Sciences
geochemistry
Geology
Geovetenskap och relaterad miljövetenskap
globe-progress
gold
halo
insights
Isotopes
mineralization
orogenic gold deposits
otago
pyrite
Quartz
quartz vein
shear
south island
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Summary:The Birthday Reef was the most productive gold producer during historic mining of the Reefton goldfield on the west coast of the South Island of New Zealand. Deep exploration drill holes (up to 1.6 km long) intersected the mineralised quartz vein zone and adjacent hydrothermal alteration halo beneath the historic mine workings. The Paleozoic metasedimentary host rocks contain between 0.5 and 8 ppb Au and between 4 and 30 ppm As, and metamorphic pyrite typically contains 0.1 to 1 ppm Au in solid solution. The Au and As halo, above these background values, extends
ISSN:0028-8306
1175-8791
1175-8791
DOI:10.1080/00288306.2016.1274332