Gawler Craton iron oxide Cu-Au (-U) potential map  


Authors / CoAuthors

Skirrow, R.G. | Fairclough, M.C. | Budd, A.R. | Lyons, P. | Raymond, O.L. | Milligan, P.R. | Bastrakov, E.N. | Fraser, G.L. | Highet, L.M. | Holm, O. | Williams, N.C.

Abstract

The map of iron oxide copper-gold (IOCG) potential of the Gawler Craton, South Australia, shows the spatial distribution of key 'essential ingredients' of IOCG ore-forming systems. These 'ingredients' include: (a) rock units of the Gawler Range-Hiltaba Volcano-Plutonic Association, subdivided by supersuite; (b) faults/shear zones subdivided by interpreted age of youngest significant movement; (c) copper geochemistry (>200ppm), from drill holes intersecting crystalline basement (Mesoproterozoic and older); (d) hydrothermal alteration assemblages and zones, based on drill hole logging, potential-field interpretation, and inversion modelling of potential-field data; and (e) host sequence units considered important in localising IOCG alteration and mineralisation. Also shown are Nd isotopic data and the mineral isotopic ages of late Palaeoproterozoic to early Mesoproterozoic magmatism and hydrothermal minerals. Areas with the greatest number of 'essential ingredients' are considered to have the maximum potential for IOCG mineralisation. IOCG potential of the Gawler Craton is shown as domains with ranks from 1 to 4, with 1 being the highest rank. Notes detailing the sources of data and methods used in constructing the map are provided in a separate file available on the Geoscience Australia website.

Product Type

nonGeographicDataset

eCat Id

64165

Contact for the resource

  Custodian

MNHD  

  Owner

Commonwealth of Australia (Geoscience Australia)  

  Custodian

Commonwealth of Australia (Geoscience Australia)  
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia

Keywords

  • Geological Map500K scale
( Theme )
  • economic geology
( Theme )
  • geochemistry
( Theme )
  • geochronology
( Theme )
  • mapping
( Theme )
  • metallogenesis
( Theme )
  • mineral exploration
  • AU-SA
Australian and New Zealand Standard Research Classification (ANZSRC)
  • Geology
  • Published_Internal

Publication Date

2006-01-01T00:00:00

Creation Date

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

Access - license

Use - license

Status

Purpose

Maintenance Information

unknown

Topic Category

geoscientificInformation

Series Information

Lineage

Unknown

Parent Information

Extents

[-35.0, -28.0, 133.0, 138.0]

Reference System

Spatial Resolution

Service Information

Associations

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Source Information

Source data not available.