Product catalogue
Large earthquake recurrence on the southern Willunga Fault, South Australia
<div>The presence of Pliocene marine sediments in the Myponga and Meadows basins within the Mt Lofty Ranges south of Adelaide is testament to over 200 m of tectonic uplift within the last 5 Myr (e.g., Sandiford 2003, Clark 2014). The spatiotemporal distribution of uplift amongst the various faults within the range and along the range fronts is poorly understood. Consequently, large uncertainties are associated with estimates of the hazard that the faults pose to proximal communities and infrastructure.</div><div> </div><div>We present the preliminary results of a paleoseismic investigation of the southern Willunga Fault, ~40 km south of Adelaide. Trenches were excavated across the fault to examine the relationships between fault planes and sedimentary strata. Evidence is preserved for 3-5 ground-rupturing earthquakes since the Middle to Late Pleistocene, with single event displacements of 0.5 – 1.7 m. Dating of samples will provide age constraints on the timing of these earthquakes. This most recent part of the uplift history may then be related to the longer-term landscape evolution evidenced by the uplifted basins, providing an enhanced understanding of the present-day seismic hazard.</div>
This abstract was presented at the Australian & NZ Geomorphology Group (ANZGG) Conference in Alice Springs 26-30 September 2022.
https://www.anzgg.org/images/ANZGG_2022_First_circular_Final_V3.pdf
Simple
Identification info
- Date (Creation)
- 2022-07-06T16:00:00
- Date (Publication)
- 2022-10-13T00:32:31
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/147006
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Clark, D.
Place and Communities Internal Contact Author Griffin, J.
Internal Contact Author La Greca, J.
External Contact Author Quigley, M.
External Contact Author Sellmann, S.
External Contact Author Ninis, D.
External Contact Author Kuang, K.
External Contact Author Wilson, A.
External Contact
- Purpose
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This abstract will be presented as a talk at the conference with the purpose of stimulating thought and discussion on Australian tectonic geomorphology and earthquake hazard.
- 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 Clark, D.
Internal Contact Resource provider Spatial Division
External Contact
- Spatial representation type
- Topic category
-
- Geoscientific information
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
- Project
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Earthquake activity
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- Keywords
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earthquake hazard
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- Keywords
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seismic hazard
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- Keywords
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tectonics
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- theme.ANZRC Fields of Research.rdf
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Structural geology and tectonics
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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
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4.0
- Addressee
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Role Organisation / Individual Name Details User Any
- Use constraints
- License
- Use constraints
- Other restrictions
- Other constraints
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© Commonwealth of Australia (Geoscience Australia) 2022
Resource constraints
- Title
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Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Classification system
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Australian Government Security Classification System
- 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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Download Abstract (pdf) [168.6]
Download Abstract (pdf) [168.6]
- Distribution format
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pdf
- File decompression technique
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nil
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Resource lineage
- Statement
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This abstract was created to present at the Australian & NZ Geomorphology Group (ANZGG) Conference in Alice Springs 26-30 September 2022.
https://www.anzgg.org/images/ANZGG_2022_First_circular_Final_V3.pdf
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/ce0c8421-53d7-4f4c-8de7-e454404ba6bf
- 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 Clark, D.
Internal Contact
Type of resource
- Resource scope
- Document
- Name
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Conference Abstract
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/147006
- Date info (Creation)
- 2022-08-17T07:57:30
- Date info (Revision)
- 2022-08-17T07:57:30
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
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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