Product catalogue
The age and genesis of the Nifty copper deposit: back to the future
A Nd-Sm isochron from apatite in apatite-chalcopyrite veins mostly in the footwall to the Nifty
deposit indicates an age of 791 ± 43 Ma. As this apatite is paragenetically associated with
chalcopyrite in the veins and in the ore zone, this age is interpreted as the best estimate for the timing
of mineralisation at the Nifty deposit. Consideration of the temporal evolution of Nd values
precludes deposition of the apatite significantly younger than 800 Ma. The U-Pb systematics of the
apatite have been disturbed, resulting mostly in highly scattered arrays that do not have geologic
significance.
Observations on primary fluid inclusions in quartz from the apatite veins suggest low temperature,
relatively high salinity brines. These observations, the geochronological constraints and large ranges
in sulphur isotope values suggest that the Nifty deposit formed early, possibly diagenetically, from
low temperature, relatively oxidised fluids. This inference is consistent with the original model for
the Nifty deposit (Haynes et al., 1993) though less consistent with the tectonic model proposed by
Anderson et al. (2001).
Structural modelling assuming that mineralisation is early shows that the north trend of ore shoots
reported previously on the northeastern limb of the Nifty Anticline is consistent with control by
antithetic normal faults developed during basin formation. If this model is correct, these antithetic
normal faults would trend west-southwest on the southwestern limb of the Nifty Anticline. This
trend has not been adequately drill-tested, and provides scope for additional near-mine exploration
on the southwestern limb of the Nifty Anticline.
Simple
Identification info
- Date (Publication)
- 2007-01-01T00:00:00
- Citation identifier
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Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/65044
- Cited responsible party
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Role Organisation / Individual Name Details Author Huston, D.L.
Author Maas, R.
Author Czarnota, K.
- Name
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Professional Opinion
- Issue identification
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2007/03
- Point of contact
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Role Organisation / Individual Name Details Custodian MNHD
Owner Commonwealth of Australia (Geoscience Australia)
Point of contact Commonwealth of Australia (Geoscience Australia)
Voice
- Topic category
-
- Geoscientific information
Extent
))
- Maintenance and update frequency
- Not planned
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
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GA Publication
-
Professional Opinion
-
- Theme
-
-
geology
-
- Keywords
-
-
AU-WA
-
- Keywords
-
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Published_External
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- Australian and New Zealand Standard Research Classification (ANZSRC)
-
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Earth Sciences
-
Resource constraints
- Title
-
Creative Commons Attribution 4.0 International Licence
- Alternate title
-
CC-BY
- Edition
-
4.0
- Access constraints
- Restricted
- 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
-
Download the Report (pdf)
Download the Report (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/a05f7892-d1d3-7506-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
-
Professional Opinion
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
-
eCatId/65044
- Metadata linkage
-
https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/a05f7892-d1d3-7506-e044-00144fdd4fa6
- Date info (Revision)
- 2018-04-10T10:54:42
- Date info (Creation)
- 2006-12-11T00:00:00
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