Research Data

Iron Oxide Copper-Gold Deposits


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Iron Oxide Copper-Gold Deposits
Date Record Created
Date Record Modified
Date Coverage
2004-01-01 to 2005-01-01
Time Period
(no information)
Geospatial Location
  1. Type: brief

    This dataset is the time-space distribution of IOCG deposits and a descriptive geologic framework covering the larger and best studied deposits.

  2. Type: full

    IOCG deposits are the products of fault and/or shear zone-controlled distal magmatic hydrothermal systems, some of which incorporated significant amounts of nonmagmatic fluids. If magmas made a major contribution to the deposits, there are important questions to be addressed regarding tectonic setting and petrochemical specialization leading to the generation of an Fe-Cu–rich fluid, as well as fluid evolution under the deep-seated conditions implied for deposits such as those in the Cloncurry district. This implies that the fundamental control on global IOCG distributions may relate to the specifics of magma generation in the lower crust or upper mantle. Alternately, if salts are primarily derived from basinal fluids, evaporites, or metamorphism, and the metals from leaching of rocks along the flow path or at the source (Table 1), then the implication is that prospectivity would relate to the specific paleogeographic environment or stratigraphic succession, as well as to the thermal and permeability history of the host rocks around the deposits. In both cases, a sulfur source is required for precipitation of Cu, and this may be the critical factor for economic productivity, regardless of the source of fluids and metals. Whether or not fluid mixing or multiple sources might be the defining hallmarks of IOCG deposits remains to be demonstrated. However, recognition of proximity to likely causative intrusions, and the roles of fluid mixing versus wallrock reaction and cooling, may ultimately permit discrimination of different deposit types within this broader class and a more focused exploration and research understanding.

  3. Type: note

    Dataset consists of a map of the location of the principal IOCG deposits globally. Format of dataset is pdf.

Related Publications
  1. Williams, Patrick J., Barton, Mark D., Johnson, David A., Fontboté, Lluís, De Haller, Antoine, Mark, Geordie, Oliver, Nicholas H.S., and Marschik, Robert (2005) Iron oxide copper-gold deposits: geology, space-time distribution, and possible modes of origin. Economic Geology, . pp. 371-405. ISSN 1554-0774
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Technical metadata
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  1. Managed by: Dr Patrick Williams , School of Earth & Environmental Sciences
  2. Aggregated by: Prof Nick Oliver , School of Earth & Environmental Sciences
Primary Contact
Dr Patrick Williams,
(no information)
  1. Mark D. Barton. Center for Mineral Resources, Department of Geosciences, University of Arizona, Tucson, Arizona 85721
  2. David A. Johnson. Center for Mineral Resources, Department of Geosciences, University of Arizona, Tucson, Arizona 85721
  3. Lluis Fontbote. Département de Minéralogie, Université de Gèneve, Gèneve CH-1211, Switzerland
  4. Antoine de Haller. Département de Minéralogie, Université de Gèneve, Gèneve CH-1211, Switzerland
  5. Robert Marschik. Department of Earth and Environmental Sciences, Ludwig-Maximilians-Universität, Luisenstrasse 37, Munich D-80333, Germany
Fields of Research
  1. 040307 - Ore Deposit Petrology (040307) (040307)
Socio-Economic Objective
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  1. iron oxide copper-gold
  2. Iocg
  3. ernest henry
  4. Economic Geology
  5. Chile
  6. olympic dam
  7. ore systems
Research Activity
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Research Themes
Industries and Economies in the Tropics
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License - Other
(no information)
Access Rights/Conditions
Open Access . If the data is not available via the provided link, please contact an associated party (preferrably the Manager as specified) for access.
(no information)
Data Location
Online Locations
  1. williams_ironoxidecoppergold_seg05 4.pdf (Data File, Public)
Stored At
School of Earth and Environmental Science, James Cook University, Townsville, Qld 4811 AUSTRALIA, Phone Main Office: +61 7 4781 4536, Fax General: +61 7 4781 5581
Williams, Patrick.; Oliver, Nick. (2012). Iron Oxide Copper-Gold Deposits. James Cook University. (dataset).