Mineral systems and metallogeny of the Delamerian Orogen margin

<div><strong>Output Type:</strong> Exploring for the Future Extended Abstract</div><div><br></div><div><strong>Short Abstract: </strong>An advanced understanding of regional-scale metallogenic characteristics and ore-formation controls is fundamental for mineral discovery, particularly in underexplored covered terranes, such as the Delamerian Orogen of southeastern Australia. The Delamerian Orogen is defined as the spatial extent of rocks first deformed by the Delamerian Orogeny, though the Orogen was also affected by younger geodynamic events. Petrology of the mineralised host rocks from over 20 mineral prospects and deposits has led to the recognition of four types of mineral systems related to the geodynamic history of the Delamerian Orogen on mainland Australia, including (1) porphyry-epithermal; (2) volcanic-hosted massive sulphide (VHMS); (3) orogenic gold; and (4) mafic-ultramafic magmatic Cu-Ni-PGE systems. Several other prospects are yet to be classified due to insufficient data, although there is strong evidence to suggest that these are magmatic-hydrothermal in origin. Direct dating of hydrothermal alteration and mineralisation at key mineral deposits and prospects (using U-Pb in titanite and apatite, and Sm-Nd in fluorite) identified four major metallogenic events in the Delamerian Orogen margin. The middle to late Cambrian (505–494 Ma) mineral systems, throughout the eastern margin of the Delamerian Orogen, are potentially the most significant. However, our new dating indicates other metallogenic events at 590–580 Ma, 480–460 Ma, and 412–399 Ma. Analysis of data related to mineral systems fertility reveals crustal controls on the location and type of mineralisation in the Delamerian Orogen. Integration of Hf and O isotopes in zircon, and S isotopes in sulphide minerals indicates that the geology of the Orogen may host multiple opportunities for mineral system development. An indicative map of ca.600–400 Ma mineral system potential was developed by integrating this new data, together with other geological, geochemical and geophysical datasets within the geodynamic context of the Delamerian Orogen. Importantly, this study demonstrates the metallogenic characteristics of multiple types and episodes of mineral system development, and the geological processes that have controlled their formation to aid exploration.</div><div><br></div><div><strong>Citation: </strong>Cheng, Y., Gilmore, P., Lewis, C., Roach, I., Clark, A., Mole, D., Pitt, L., Doublier, M., Sanchez, G., Schofield, A., O'Rourke, A., Budd, A., Huston, D., Czarnota, K., Meffre, S., Feig, S., Maas, R., Gilbert, S., Cairns, C., Cayley, R., Wise, T., Wade, C., Werner, M., Folkes, C. &amp; Hughes, K., 2024. Mineral systems and metallogeny of the Delamerian Orogen margin. In: Czarnota, K. (ed.) Exploring for the Future: Extended Abstracts. Geoscience Australia, Canberra. https://doi.org/10.26186/149657</div><div><br></div>

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Identification info

Date (Creation)
2024-06-07T22:00:00
Date (Publication)
2024-08-11T22:56:48
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/149657

Citation identifier
Digital Object Identifier/https://dx.doi.org/10.26186/149657

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Commonwealth of Australia (Geoscience Australia)

 Voice
Author

Cheng, Y.

 Internal Contact
Author

Gilmore, P.

 External Contact
Author

Lewis, C.

 Internal Contact
Author

Roach, I.

 Internal Contact
Author

Clark, A.

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Author

Mole, D.

 Internal Contact
Author

Pitt, L.

 Internal Contact
Author

Doublier, M.

 Internal Contact
Author

Sanchez, G.

 Internal Contact
Author

Schofield, A.

 Internal Contact
Author

ORourke, A.

 Internal Contact
Author

Budd, A.

 Internal Contact
Author

Huston, D.

 Internal Contact
Author

Czarnota, K.

 Internal Contact
Author

Meffre, S.

 External Contact
Author

Feig, S.

 External Contact
Author

Maas, R.

 External Contact
Author

Gilbert, S.

 External Contact
Author

Cairns, C.

 External Contact
Author

Cayley, R.

 External Contact
Author

Wise, T.

 External Contact
Author

Wade, C.

 External Contact
Author

Werner, M.

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Author

Folkes, C.

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Author

Hughes, K.

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Editor

Czarnota, K.

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Purpose

This contribution summarises the major findings from the Mineral Potential Assessment module of the Darling-Curnamona-Delamerian project. This abstract is one of the four deliverables of the study.

Status
Completed
Point of contact
Role Organisation / Individual Name Details
Resource provider

Minerals, Energy and Groundwater Division

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Commonwealth of Australia (Geoscience Australia)

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Point of contact

Cheng, Y.

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Spatial representation type
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  • Geoscientific information

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N
S
E
W


Maintenance and update frequency
As needed

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Title

Product data repository: Various Formats

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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

Project

  • Mineral Systems

Project

  • Mineral Potential

Project

  • Delamerian Orogen

Project

  • Darling-Curnamona-Delamerian

Project

  • Exploring for the Future (EFTF)

Project

  • EFTF – Exploring for the Future

Keywords

  • Mineral Systems

Keywords

  • Mineral Potential

Keywords

  • Delamerian Orogen

Keywords

  • Darling-Curnamona-Delamerian (DCD)

theme.ANZRC Fields of Research.rdf

  • Resource geoscience

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

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CC-BY

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4.0

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https://creativecommons.org/licenses/by/4.0/

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Any
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© Commonwealth of Australia (Geoscience Australia) 2024

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Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
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https://www.protectivesecurity.gov.au/Pages/default.aspx

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Unclassified
Classification system

Australian Government Security Classification System

Associated resource

Association Type
Informed
Title

Metallogenic characteristics of key mineral prospects in the Delamerian Orogen, Australia

Citation identifier
149025

Citation identifier
ba84a7c5-e99a-4c4e-b0a5-03b065f3a6b5

Website

http://pid.geoscience.gov.au/dataset/ga/149025

Link to eCat metadata record landing page

Language
English
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UTF8

Distribution Information

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Commonwealth of Australia (Geoscience Australia)

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OnLine resource

Extended Abstract for download (pdf) [3.6 MB]

Extended Abstract for download (pdf) [3.6 MB]

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    nil

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Statement

<div>This contribution summarises the major findings from the Mineral Potential Assessment module of the Darling-Curnamona-Delamerian project. This abstract is one of the four deliverables of the study.</div>

Metadata constraints

Title

Australian Government Security Classification System

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

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

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/97a017cf-4420-4967-a952-b616ba60294e

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice
Point of contact

Cheng, Y.

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Document
Name

GA Abstract / Fact Sheet

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

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Citation identifier
eCatId/149657

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https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/97a017cf-4420-4967-a952-b616ba60294e

Date info (Creation)
2024-08-09T00:04:20
Date info (Revision)
2024-08-09T00:04:20

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
http://pid.geoscience.gov.au/dataset/ga/122551

 
 

Spatial extent

N
S
E
W


Keywords

Darling-Curnamona-Delamerian Delamerian Orogen EFTF – Exploring for the Future Exploring for the Future (EFTF) Mineral Potential Mineral Systems
theme.ANZRC Fields of Research.rdf
Resource geoscience

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