Conference Proceedings
1986 AusIMM New Zealand Branch Annual Conference - New Mines and New Technology
Conference Proceedings
1986 AusIMM New Zealand Branch Annual Conference - New Mines and New Technology
Exploration Case History of the Golden Cross Gold Prospect Waihi, New Zealand
Economically significant gold-silver mineralization occurs in Miocene andesitic flows and tuffs at Golden Cross, eight kilometres northwest of Waihi, New Zealand. The highest grade mineralization occurs in a steeply dipping elongate zone of strong quartz veining and brecciation underlying, but contiguous with, a gently dipping tabular quartz vein stockwork containing potentially open-pittable lower grade gold-silver mineralisation. The stockwork zone is enveloped by argillic alteration and overlain by unaltered Pliocene andesites and recent tephra. Evaluation of the prospect involved underground and surface geologic mapping, rock and soil geochemistry, IP-resistivity, magnetic and gravity surveys as well as 1844 metres of reverse circulation drilling and over 30 000 metres of core drilling. The paper outlines the exploration history of the area and describes the results of the various exploration techniques used at Golden Cross.
Contributor(s):
K R Hay
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- Published: 1986
- PDF Size: 1.316 Mb.
- Unique ID: P198609012NZ