Review of the Proterozoic geology and mineral potential of the Curnamona Province in South Australia
The Proterozoic Curnamona Province extends across northeastern South Australia and western New South Wales, with exposures in the Willyama, Mount Painter and Mount Babbage Inliers, but much of it is obscured by younger sedimentary cover. Curnamona Province rocks comprise a late Palaeoproterozoic metasedimentary and metavolcanic succession (Willyama Supergroup) with some meta-intrusives and early Mesoproterozoic volcanics, sediments and granitoid intrusives. The Willyama Supergroup in South Australia is divided into the Olary and Broken Hill Domains on the basis of lithological and geophysical character, with a strong linear magnetic feature marking the boundary. A tentative lithostratigraphy has been established for the Olary Domain, in parallel with the Broken Hill Domain. Limited geochronology indicates broad contemporaneity, but the Olary Domain differs in the apparent dominance of shallow-water or evaporitic sediments, the relative paucity of volcanics, the presence of widespread metasomatism, particularly albitisation and associated brecciation, and abundant Mesoproterozoic granitoids. Current mapping of the Broken Hill Domain in South Australia has identified lithologies comparable with the Thorndale Composite Gneiss, Thackaringa Group, Broken Hill Group and Sundown Group. The Benagerie Ridge, known only from limited drilling, contains lower metamorphic grade metasediments consistent with the northwards decrease of grade observed in the Olary Domain. Further north on the ridge, essentially flat-lying Mesoproterozoic sediments and acid and basic volcanics may overlie Willyama Supergroup. The Willyama Inliers in South Australia have widespread base-metal, gold and uranium occurrences, although total production has been very small, except for the Radium Hill uranium mine. In the Broken Hill Domain, known mineralisation includes a copper sulphide resource at the Mutooroo Mine and several large, low-grade bodies of disseminated copper and zinc sulphides. The Olary Domain has numerous occurrences of copper, zinc, lead and gold associated with sulphidic, calc-silicate and albitic units. Copper and gold are also associated with stratabound quartz- magnetite bodies lower in the sequence. Discordant, epigenetic, base metal- and gold-bearing veins are also widespread in the Willyama Supergroup, related particularly to the retrogressive phase of the Mesoproterozoic Olarian Orogeny and to the Cambro-Ordovician Delamerian Orogeny. Significant intersections of copper, zinc, molybdenum and gold mineralisation have been found in ?Willyama Supergroup metasediments in the southern Benagerie Ridge. In general, the Curnamona Province is prospective for stratiform and stratabound lead- zinc and Olympic Dam and Cloncurry Belt style copper- gold(- uranium) mineralisation.
Simple
Identification info
- Date (Publication)
- 1998-01-01T00:00:00
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/81514
- Cited responsible party
-
Role Organisation / Individual Name Details Publisher Australian Geological Survey Organisation
Canberra Author Robertson, R.S.
1 Author Preiss, W.V.
2 Author Crooks, A.F.
3 Author Hill, P.W.
4 Author Sheard, M.J.
5
- Name
-
AGSO Journal of Australian Geology and Geophysics
- Issue identification
-
17:3:169-182
- Point of contact
-
Role Organisation / Individual Name Details Custodian Corp
Owner Commonwealth of Australia (Geoscience Australia)
Custodian Commonwealth of Australia (Geoscience Australia)
Voice
- Topic category
-
- Geoscientific information
Extent
))
- Maintenance and update frequency
- Unknown
Resource format
- Title
-
Product data repository: Various Formats
- Website
-
Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Keywords
-
-
GA Publication
-
Journal
-
- Keywords
-
-
SA
-
- Australian and New Zealand Standard Research Classification (ANZSRC)
-
-
Earth Sciences
-
- Keywords
-
-
Published_External
-
Resource constraints
- Title
-
Creative Commons Attribution 4.0 International Licence
- Alternate title
-
CC-BY
- Edition
-
4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
-
Journal article (pdf)
Journal article (pdf)
- Distribution format
-
-
pdf
-
Resource lineage
- Statement
-
Unknown
- Hierarchy level
- Non geographic dataset
- Other
-
GA Publication
- Description
-
Source data not available.
Metadata constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/fae9173a-71c7-71e4-e044-00144fdd4fa6
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice
Type of resource
- Resource scope
- Document
- Name
-
AGSO BMR Journal
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/81514
- Date info (Revision)
- 2018-04-20T06:07:00
- Date info (Creation)
- 2014-06-03T00:00:00
Metadata standard
- Title
-
AU/NZS ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-3
- Title
-
Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
-
Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551