Product catalogue
Cretaceous to Cenozoic controls on the genesis of the shelf-incising Perth Canyon
Perth Canyon is Australia's second largest submarine canyon, and its elongate and continental shelf-incising morphology contrasts with Australia's more prolific slope-confined canyons. The canyon's sinuous course extends for 120 km from the continental shelf break (~180 m depth, only 50 km offshore from Perth) to its fan at the foot of the continental slope (~4500 m).
This seminar will describe the application of a new, internationally-collaborative mapping approach to capture the complexity of the canyon and to link its modern morphology to subsurface data and thereby reconstruct its geological evolution. Infilled incised valleys found in seismic data beneath the canyon headwall suggest that the canyon initially incised in the Late Cretaceous (around 70 million years ago), and subsequent incisions and canyon activity have since declined in scale. Repeat surveys of the canyon headwall following two relatively large earthquakes in 2018 reveal minimal instability of the seafloor and suggest that the canyon is now less active than in it has been in its geological past.
Simple
Identification info
- Date (Creation)
- 2022-03-23T00:00:00
- Date (Publication)
- 2024-05-13T08:07:37
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/148803
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/148803
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Nanson, R.
Place and Communities Internal Contact
- Name
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Wednesday Seminar
- Purpose
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To promote the scientific achievements of Geoscience Australia.
- 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 Nanson, R.
Place and Communities Internal Contact Resource provider Place, Space and Communities Division
External Contact
- 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
- Protocol
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FILE:DATA-DIRECTORY
- Name of the resource
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Data Store directory containing the digital product files
- Description
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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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EARTH SCIENCES
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- Keywords
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Wednesday Seminar
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- Keywords
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submarine canyons
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- Keywords
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Perth Canyon
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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
- Other constraints
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(c) Commonwealth of Australia (Geoscience Australia) 2023
Resource constraints
- Title
-
Australian Government Security Classification System
- 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 facsimile
- OnLine resource
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Link to YouTube video
Link to YouTube video
- Distribution format
-
Resource lineage
- Statement
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Seminar recording as part of the Geoscience Australia public talks programs
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/c0a68768-8162-43e7-b3b3-245b8d925d7b
- Title
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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 Owner Sedgmen, L.
Corporate Division Internal Contact Point of contact Nanson, R.
Place and Communities Internal Contact
Type of resource
- Resource scope
- Document
- Name
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Presentation
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/148803
- 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
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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