Introduction to New Zealand hard rock gold deposits and their exploration models. Issue 4 (2nd October 2019)
- Record Type:
- Journal Article
- Title:
- Introduction to New Zealand hard rock gold deposits and their exploration models. Issue 4 (2nd October 2019)
- Main Title:
- Introduction to New Zealand hard rock gold deposits and their exploration models
- Authors:
- Christie, Anthony B.
- Abstract:
- ABSTRACT: Since the first official discovery of gold in 1852, gold has been mined in New Zealand from three main types of deposits: placer (c. 19 Moz Au), orogenic (mesothermal; c. 8 Moz Au) and epithermal (c. 11 Moz Au). Currently, gold production in New Zealand is from more than 30 placer mines (>50, 000 oz Au per annum) on the West Coast, and in Otago and Southland, and from hard-rock mines at the Macraes orogenic deposits in northeast Otago (202, 990 oz Au produced in 2018), and the epithermal deposits of the Waihi area (83, 492 oz Au produced in 2018) in the Hauraki Goldfield. The discovery of the Sams Creek intrusion-hosted gold deposit in west Nelson in 1974 has also encouraged exploration for this type of gold deposit. Exploration models for orogenic, intrusion-hosted and epithermal gold deposits have been developed addressing general deposit characteristics, mineral system models and key features for use in exploration. Orogenic deposits are hosted in Western Province Greenland Group (e.g. Reefton Goldfield) and Eastern Province Haast Schist Group (e.g. Macraes), whereas epithermal deposits are associated with Cenozoic volcanic rocks in Northland (e.g. Puhipuhi), and the Coromandel (e.g. Waihi) and Taupo (e.g. Ohakuri) volcanic zones.
- Is Part Of:
- New Zealand journal of geology and geophysics. Volume 62:Issue 4(2019)
- Journal:
- New Zealand journal of geology and geophysics
- Issue:
- Volume 62:Issue 4(2019)
- Issue Display:
- Volume 62, Issue 4 (2019)
- Year:
- 2019
- Volume:
- 62
- Issue:
- 4
- Issue Sort Value:
- 2019-0062-0004-0000
- Page Start:
- 394
- Page End:
- 413
- Publication Date:
- 2019-10-02
- Subjects:
- Gold deposits -- exploration -- orogenic -- intrusion-related -- epithermal -- low-intermediate sulphidation
Geology -- New Zealand -- Periodicals
Geology -- Periodicals
Geophysics -- Periodicals
Geofysica
Geologie
Geology
Geophysics
New Zealand
Periodicals
559.3 - Journal URLs:
- http://books.google.com/books?id=9gm8AAAAIAAJ ↗
http://books.google.com/books?id=EB28AAAAIAAJ ↗
http://books.google.com/books?id=KBm8AAAAIAAJ ↗
http://books.google.com/books?id=dCoEAQAAIAAJ ↗
http://www.informaworld.com/smpp/title~content=t918982746~db=all ↗
http://www.tandfonline.com/toc/tnzg20/current ↗
http://www.tandfonline.com/ ↗ - DOI:
- 10.1080/00288306.2019.1653328 ↗
- Languages:
- English
- ISSNs:
- 1175-8791
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 12744.xml