Crustal architecture along seismic line 22GA-CD2 new insights from the Darling-Curnamona-Delamerian deep seismic reflection survey
<div><strong>Output type: </strong>Exploring for the Future Extended Abstract</div><div><br></div><div><strong>Short abstract: </strong> Crustal architecture provides first order controls on the distribution of mineral resources of an area and is best imaged by deep seismic reflection data. Here we present a first interpretation of seismic line 22GA-CD2, acquired as part of the Darling-Curnamona-Delamerian (DCD) project. Line 22GA-CD2 images the central eastern Delamerian Orogen, where basement rocks are concealed by the Murray Basin. Key findings include: (i) the crustal architecture preserves many characteristics of the early evolution of west-dipping Delamerian subduction, accretion and orogeny between ~ 515 Ma - 495 Ma. This initial configuration has been reworked and reactivated during younger orogenic events; (ii) the lower and middle crust constitutes the newly defined Barrier Seismic Province, which is also imaged in legacy seismic reflection line 05GA-TL1 and interpreted to continue northeast to the Olepoloko Fault; (iii) a similar seismic character to that of the Barrier Seismic Province has been observed in legacy seismic reflection lines in Victoria and related to a Cambrian accretionary setting and adjacent foreland; (iv) the present-day upper crustal configuration is largely the result of contractional fault reactivation, with significant vertical movements during the Kanimblan-Alice Springs Orogeny (~ 360 Ma - 340 Ma); (v) a large area of prospective rocks for mineral deposits with Cambrian arc-affiliation are accessible to exploration under shallow cover of the Murray Basin (often less than 200 m).</div><div> </div><div><strong>Citation: </strong>Doublier M.P., et al., 2024. Crustal architecture along seismic line 22GA-CD2: new insights from the Darling-Curnamona-Delamerian deep seismic reflection survey. In: Czarnota, K. (ed.) Exploring for the Future: Extended Abstracts, Geoscience Australia, Canberra, https://dx.doi.org/10.26186/149658</div>
Simple
Identification info
- Date (Creation)
- 2024-06-15T08:00:00
- Date (Publication)
- 2024-08-11T22:56:47
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/149658
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/149658
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Doublier, M.
Internal Contact Author Clark, A.
Internal Contact Author Korsch, R.J.
External Contact Author Miller, R.
Internal Contact Author Gilmore, P.
External Contact Author Folkes, C.
External Contact Author Mahoney, L.
External Contact Author Abdullah, R.
External Contact Author Cayley, R.
External Contact Author Cheng, Y.
Internal Contact Author Fraser, G.
Internal Contact Author Jiang, W.
Internal Contact Author Krapf, C.
External Contact Author McLean, M.
External Contact Author Mole, D.
Internal Contact Author Nicoll, M.
Internal Contact Author Skladzien, P.
External Contact Author Thiel, S.
External Contact Author Wade, C.
External Contact Author Wise, T.
External Contact Author Rasheed, H.
Internal Contact Author Hossain, M.
Internal Contact Author Costelloe, R.
External Contact Editor Czarnota, K.
Internal Contact
- Name
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EFTF Extended Abstract
- Purpose
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EFTF abstract showing the interpretation of deep seismic reflection line 22GA-CD2.
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Resource provider Minerals, Energy and Groundwater Division
External Contact Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Doublier, M.
Internal Contact
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- Topic category
-
- Geoscientific information
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))
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- As needed
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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
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Darling-Curnamona-Delamerian
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- Project
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EFTF – Exploring for the Future
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- Keywords
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reflection seismic
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- Keywords
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Delamerian
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- Keywords
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crustal architecture
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- Keywords
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Darling Basin
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- theme.ANZRC Fields of Research.rdf
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Seismology and seismic exploration
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Structural geology and tectonics
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- Keywords
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Published_External
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Creative Commons Attribution 4.0 International Licence
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CC-BY
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4.0
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Role Organisation / Individual Name Details User Any
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© Commonwealth of Australia (Geoscience Australia) 2024
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Australian Government Security Classification System
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- 2018-11-01T00:00:00
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Australian Government Security Classification System
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
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Extended Abstract for download (pdf) [3.1 MB]
Extended Abstract for download (pdf) [3.1 MB]
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pdf
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nil
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- Statement
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<div> This publication was produced as part of Geoscience Australia's Exploring for the Future Program. It was presented at the Exploring for the Future 2024 Showcase.</div><div> </div>
Metadata constraints
- Title
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Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
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urn:uuid/a1ab63eb-9103-4b49-9de7-b0b33c56e9fc
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Doublier, M.
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GA Abstract / Fact Sheet
Alternative metadata reference
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Geoscience Australia - short identifier for metadata record with
uuid
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- Date info (Creation)
- 2024-08-07T00:02:54
- Date info (Revision)
- 2024-08-07T00:02:54
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
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ISO 19115-3
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
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Version 2.0, September 2018
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