Product catalogue
Attenuated basin‐margin sequence stratigraphy of the Palaeoproterozoic Calvert and Isa Superbasins: The Fickling Group, southern Murphy Inlier, Queensland
Sedimentary rocks of the Palaeoproterozoic Calvert and Isa Superbasins are exposed across a large area of northern Australia. Despite the extent of the exposures there is little to indicate the nature of the basin margins as most outcrop boundaries are structurally or erosionally defined, or the margins, where preserved, are concealed beneath younger basins. The Murphy Inlier, which forms the boundary between the Mt Isa and McArthur Basins, is unique in that on its southern flanks a basin‐margin succession is well‐preserved as the Fickling Group. A detailed sequence‐stratigraphic analysis of outcrop sections and well logs, supplemented by seismic reflection profiles and SHRIMP U–Pb zircon ages, shows that all seven supersequences of the Isa Superbasin and one supersequence from the older Calvert Superbasin are represented in the Fickling Group. Through this high‐resolution sequence‐stratigraphic framework, it is possible to accurately correlate chronostratigraphically equivalent strata from the McNamara Group on the central Lawn Hill Platform to the Fickling Group on the southern Murphy Inlier. Each supersequence thins substantially from the McNamara Group (∼11 km thick) to the Fickling Group (<1 km thick). The combined effects of truncation and onlap of sequences over the Murphy Inlier basement high are responsible for the thinning. Major time breaks of up to 25 million years occur between supersequences in the Fickling Group. Erosional hiatuses are often manifested at the base of supersequences as conglomerate beds composed of silicified detritus from older strata. Sequences in the Fickling Group were generally deposited in a proximal basin‐margin setting, while sequences in the McNamara Group were deposited in distal basin depocentres. The proximal depositional setting of Fickling Group sequences reduces the number of thick carbonaceous shale and siltstone intervals, which often host Zn–Pb–Ag and Cu deposits in the McNamara Group. Many host sequences from the McNamara Group are also absent in the Fickling Group due to truncation and onlap pinchout. Consequently, the economic potential of Palaeoproterozoic strata on the southern Murphy Inlier is less than equivalent strata from the central Lawn Hill Platform. Despite this, potential does exist for future discoveries of economic mineral deposits in the Mt Les Siltstone and Walford Dolomite units of the Fickling Group.
<b>Citation:</b> Bradshaw, B. E., Lindsay, J. F., Krassay, A. A., & Wells, A. T. (2000). Attenuated basin‐margin sequence stratigraphy of the Palaeoproterozoic Calvert and Isa Superbasins: The Fickling Group, southern Murphy Inlier, Queensland. Australian Journal of Earth Sciences, 47(3), 599–623. https://doi.org/10.1046/j.1440-0952.2000.00794.x
Simple
Identification info
- Date (Publication)
- 2000-01-01T00:00:00
- Date (Revision)
- 2025-07-01T06:14:27.415Z
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/35694
- Cited responsible party
-
Role Organisation / Individual Name Details Author Bradshaw, B.E.
1 Author Lindsay, J.F.
2 Author Krassay, A.A.
3 Author Wells, A.T.
4
- Name
-
Australian Journal of Earth Sciences
- Issue identification
-
Volume 47 Issue 3
- Page
-
599-623
- Status
- Completed
- Point of contact
-
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 Palu, T.
MEG Internal Contact
- Topic category
-
- Geoscientific information
Extent
))
- Maintenance and update frequency
- Unknown
Resource format
- Title
-
Product data repository: Various Formats
- Website
-
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
- Keywords
-
-
External Publication
-
Scientific Journal Paper
-
- Theme
-
-
lithostratigraphy
-
sequence stratigraphy
-
geology
-
- Australian and New Zealand Standard Research Classification (ANZSRC)
-
-
Earth Sciences
-
- Keywords
-
-
Published_External
-
- Keywords
-
-
basin analysis
-
Fickling Group
-
mineralisation
-
Murphy Inlier
-
Paleoproterozoic
-
Walford Creek prospect
-
Resource constraints
- Title
-
Creative Commons Attribution 4.0 International Licence
- Alternate title
-
CC-BY
- Edition
-
4.0
- Access constraints
- Restricted
- 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
- OnLine resource
-
Link to Journal article
Link to Journal article
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Taylor & Francis
Resource lineage
- Statement
-
Article published in the Australian Journal of Earth Sciences.
Metadata constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/a05f7892-b4f3-7506-e044-00144fdd4fa6
- 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 Palu, T.
MEG Internal Contact
Type of resource
- Resource scope
- Document
- Name
-
Journal Articles / Conference Papers
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with uuid
- Citation identifier
- eCatId/35694
- Date info (Creation)
- 2025-07-04T04:26:20.547Z
- Date info (Creation)
- 2025-07-01T06:17:22.42Z
- Date info (Creation)
- 2025-07-01T06:14:29.893Z
- Date info (Creation)
- 2025-07-01T06:02:52.695Z
- Date info (Revision)
- 2025-07-04T04:27:01.036Z
- Date info (Creation)
- 2001-01-08T00:00:00
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
- https://pid.geoscience.gov.au/dataset/ga/122551