Soil Gas Trace Metal Transport - the Geogas Method Applied to NZ Epithermal and Geothermal Environments
- Location
- Rotokawa, New Zealand; Taupo Volcanic Zone
- Conference
- New Zealand Geothermal Workshop
- Year
- 1988
- Session
- Precious Metals
- Language
- English
Full text
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Abstract
A relatively new soil gas collection technology has been tested on two New Zealand epithermal gold deposits and one active hydrothermal system with the aim of ascertaining its usefulness as an exploration tool in these environments. The method successfully identified the trace levels of base metal mineralisation associated with hydrothermally altered units at both the Golden Cross deposit in the Coromandel Peninsula and the Ohakuri prospect in the Taupo Volcanic Zone, and detected gold in a single site over the Golden Cross deposit. Two surveys at the Rotokawa hydrothermal system have proven the method to be successful at delineating both zones of shallow permeability and areas of sulphide mineralisation.
Copyright 1988, University of Auckland. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.