Iron oxide-copper-gold potential of the southern Arunta Region

Iron oxide-copper-gold (IOCG) mineral systems occur globally and range in age from Archean to Mesozoic or younger. An assessment for IOCG mineral system potential has been undertaken in the southern Arunta Region, incorporating the southern Aileron and northern Warumpi provinces. The assessment has been undertaken in a GIS-based environment using a mineral systems approach. This approach recognises four key system components: (1) sources of metals and fluids, (2) fluid-flow drivers, (3) fluid-flow pathways and architecture, and (4) depositional sites and mechanisms. For each of these key system components, mappable criteria were developed as proxies for mineralising processes in order to identify potential IOCG mineral systems. The locations of known deposits and prospects were not used for generating the assessment of IOCG potential. However, they are used as a validation of the results. The assessment largely reproduces the locations of known IOCG-style mineralisation, and predicts additional potential in a number of other areas, many of which are obscured by recent sedimentary cover. An approximately east-west-trending belt of broad IOCG potential has been identified, along with local regions of high potential where favourable criteria occur.

Simple

Identification info

Date (Publication)
2013-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/76423

Cited responsible party
Role Organisation / Individual Name Details
Author

Schofield, A.

 1
Author

Huston, D.L.

 2
Author

Gallagher, R.

 3
Author

Kemp, C.

 4
Point of contact
Role Organisation / Individual Name Details
Custodian

MNHD
Owner

Commonwealth of Australia (Geoscience Australia)
Custodian

Commonwealth of Australia (Geoscience Australia)

 Voice
Topic category
  • Geoscientific information

Extent

N
S
E
W


Maintenance and update frequency
As needed

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

  • Promotional Material

Theme

  • mineral exploration

Theme

  • prospectivity

Keywords

  • AU-NT

  • AU-WA

Australian and New Zealand Standard Research Classification (ANZSRC)

  • Geology

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License

Resource constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

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

Related Product

Related product: Preliminary solid geology interpretation of the southern Arunta Region

OnLine resource

File download

Fact sheet

OnLine resource

File download

Data

Resource lineage

Statement

Criteria for the assessment of the potential for iron oxide-copper-gold mineral systems were developed from geological, geochemical and geophysical data. The basement solid geology dataset used in this study was compiled for the study area using published solid geology datasets, 1:1 000 000 and 1:250 000 maps of surface geology, and new interpretation of magnetic and gravity data. The basement solid geology utilised is a preliminary interpretation and is solely intended to be used for the assessment of iron oxide-copper-gold potential in this study. Geochemical data were sourced from Geoscience Australia's OZCHEM national whole rock geochemistry database and the Northern Territory Geological Survey's open-file whole rock geochemical database. Magnetic and gravity geophysical data were used to produce the solid geology map, as well as for developing a number of the criteria used in this assessment such as modelling of iron oxide alteration. These data were sourced from Geoscience Australia databases and are publicly available via the Geoscience Australia website. Derivative products of the input datasets were developed for the assessment (e.g., buffering). Decisions concerning the development of these derivatives, such as the selection of buffer distances and assignment of cutoff values, were made subjectively based on the scientific judgement of the analyst. Further information regarding the datasets used, data processing steps, criteria weightings and scientific rationale can be found in the accompanying metadata and pamphlet.

Hierarchy level
Non geographic dataset
Other

Promotional Material

Description

Preliminary solid geology interpretation for the southern Arunta IOCG assessment.


This dataset is in preliminary form only, and was developed specifically for the IOCG assessment.

Description

OZCHEM national whole rock geochemistry database ( http://www.ga.gov.au/meta/ANZCW0703011055.html).


Custodian: Geoscience Australia

Extent

N
S
E
W


Description

Northern Territory Geological Survey geochemical datasets (whole rock). Accessed from http://geoscience.nt.gov.au/strike


Custodian: NTGS


Open file.

Extent

N
S
E
W


Description

Milligan, P.R., Franklin, R., Minty, B.R.S., Richardson L.M. and Percival, P.J. 2010. Magnetic anomaly map of Australia. Fifth edition. Geoscience Australia: Canberra.

Extent

N
S
E
W


Description

Bacchin, M., Milligan, P.R., Wynne, P. and Tracey, R. 2008. Gravity anomaly map of the Australian region. Fourth edition. Geoscience Australia: Canberra.

Extent

N
S
E
W


Metadata constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/ded700c7-838b-6570-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
Non geographic dataset
Name

nonGeographicDataset

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/76423

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/ded700c7-838b-6570-e044-00144fdd4fa6

Date info (Revision)
2018-04-20T06:09:37
Date info (Creation)
2013-06-11T00:00:00

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

 
 

Spatial extent

N
S
E
W


Keywords

mineral exploration prospectivity

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Access to the portal

Associated resources

Not available