Basement architecture from the Pilbara Craton to the Aileron Province: new insights from deep seismic reflection line 18GA-KB1
Crustal architecture places first-order controls on the distribution of mineral and energy resources. However, despite its importance, it is poorly constrained over much of northern Australia. Here, we present a full crustal interpretation of deep seismic reflection profile 18GA-KB1 that extends over 872 km from the Eo- to Mesoarchean Pilbara Craton to the Paleoproterozoic Aileron Province, transecting a range of stratigraphic and tectonic basement units, some of which are completely concealed by younger rocks. The seismic profile provides the first coherent image through this relatively poorly understood part of Australian geology and yields major new insights about the crustal architecture, geometry and definition of the different geological and seismic provinces and their boundaries. Key findings include the following: (1) The Pilbara Craton shows a three-component horizontal crustal layering, where the granite– greenstone East Pilbara Terrane is largely confined to the upper crust. (2) The Pilbara Craton has an extensive reworked margin, the Warrawagine Seismic Province, that thins towards the east, and underlies the western and central Rudall Province. (3) At the largest scale, the Rudall Province shows an approximately funnel-shaped geometry, with limited differences in seismic character between the various terranes. (4) The western Kidson Sub-basin is underlain by rocks of the Neoproterozoic Yeneena Basin and Rudall Province. (5) The central and eastern part of the Kidson Sub-basin rests on the coherent, relatively poorly structured Punmu Seismic Province, which is truncated by the steep, crustal-scale Lasseter Shear Zone, that marks the boundary to the Aileron Province to the east.
<b>Citation:</b> Doublier, M.P., Johnson, S.P., Gessner, K., Howard, H., Chopping, R., Smithies, R.H., Martin, D.McB.,Kelsey, D.E., Haines, P.w., Hickman, A., Czarnota, K., Southby, C., Champion, D.C., Huston, D.L., Calvert, A.J., Kohanpour, F., Moro, P., Costelloe, R., Fomin, T. and Kennett, B.L.N., 2020. Basement architecture from the Pilbara Craton to the Aileron Province: new insights from deep seismic reflection line 18GA-KB1. In: Czarnota, K., Roach, I., Abbott, S., Haynes, M., Kositcin, N., Ray, A. and Slatter, E. (eds.) Exploring for the Future: Extended Abstracts, Geoscience Australia, Canberra, 1–4.
Simple
Identification info
- Date (Creation)
- 2020-06-24T08:00:00
- Date (Publication)
- 2020-06-24T05:23:57
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/134381
- Citation identifier
- Digital Object Identifier/http://dx.doi.org/10.11636/134381
- Cited responsible party
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Role Organisation / Individual Name Details Author Doublier, M.P.
Author Johnson, S.P.
Author Gessner, K.
Author Howard, H.
Author Chopping, R.
Author Smithies, R.H.
Author Martin, D.McB.
Author Kelsey, D.E.
Author Haines, P.W.
Author Hickman, A.
Author Czarnota, K.
Author Southby, C.
Author Champion, D.C.
Author Huston, D.L.
Author Calvert, A.J.
Author Kohanpour, F.
Author Moro, P.
Author Costelloe, R.
Author Fomin, T.
Author Kennett, B.L.N.
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Doublier, M.P.
Resource provider Minerals, Energy and Groundwater Division
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- Title
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Product data repository: Various Formats
- Website
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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
- theme.ANZRC Fields of Research.rdf
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Seismology and Seismic Exploration
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EARTH SCIENCES
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- Keywords
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Deep seismic reflection
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- Keywords
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Basement interpretation
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- Keywords
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Crustal Architecture
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- Keywords
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Telfer Au-Cu deposit
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- Keywords
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18GA-KB1
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- Keywords
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Pilbara
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- Keywords
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Fortescue Basin
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- Keywords
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Yeneena Basin
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- Keywords
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Gibson Sub-basin
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- Keywords
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Rudall Province
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- Keywords
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Aileron Province Crust
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- Keywords
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Exploring for the Future
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- Keywords
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EFTF
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- Keywords
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Published_External
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
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CC-BY
- Edition
-
4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
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Extended Abstract for download (pdf) [8.5 MB]
Extended Abstract for download (pdf) [8.5 MB]
- Distribution format
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pdf
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- OnLine resource
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Kidson linework (3D version) for download [102.6 KB]
Kidson linework (3D version) for download [102.6 KB]
- Distribution format
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Resource lineage
- Statement
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Presented here is the interpretation of the basement geology along deep seismic reflection profile 18GA-KB1. The profile is ~ 812 km long, and transects the Pilbara Craton, Fortescue and Hamersley Basins, Yeneena Basin, Gibson Sub-basin of the Officer Basin, Rudall Province, the Canning Basin and unexposed sub-Canning basement, and the Aileron Province. The interpretation has been developed collaboratively involving scientists from Geoscience Australia, the Geological Survey of Western Australia, University of Western Australia, Simon Farser University, and the Australian National University.
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
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urn:uuid/072cf0cf-65d9-4745-b1ae-54f32cfead7a
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Doublier, M.P.
Type of resource
- Resource scope
- Document
- Name
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GA publication: Extended Abstract
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/134381
- Date info (Creation)
- 2019-04-08T01:55:29
- Date info (Revision)
- 2019-04-08T01:55:29
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
- Title
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ISO 19115-3
- Title
-
Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551