Product catalogue
Multilayered chronostratigraphic interpretation of the world's largest airborne electromagnetic survey across the Australian continent
<div>In Australia, wide-spread sedimentary basin and regolith cover presents a key challenge to explorers, environmental managers and decision-makers, as it obscures underlying rocks of interest. To address this, a national coverage of airborne electromagnetics (AEM) with a 20 km line-spacing is being acquired. This survey is acquired as part of the Exploring for the Future program and in collaboration with state and territory geological surveys. This survey presents an opportunity for regional geological interpretations on the modelled AEM data, helping constrain the characteristics of the near-surface geology beneath the abundant cover, to a depth of up to ~500 m.</div><div>
The AEM conductivity sections were used to delineate key chronostratigraphic boundaries, e.g. the bases of geological eras, and provide a first-pass interpretation of the subsurface geology. The interpretation was conducted with a high level of data integration with boreholes, potential fields geophysics, seismic, surface geology maps and solid geology maps. This approach led to the construction of well-informed geological interpretations and provided a platform for ongoing quality assurance and quality control of the interpretations and supporting datasets. These interpretations are delivered across various platforms in multidimensional non-proprietary open formats, and have been formatted for direct upload to Geoscience Australia’s (GA) Estimates of Geological and Geophysical Surfaces (EGGS) database, the national repository of multidisciplinary subsurface depth estimates.</div><div>
These interpretations have resulted in significant advancements in our understanding of Australia’s near-surface geoscience, by revealing valuable information about the thickness and composition of the extensive cover, as well as the composition, structure and distribution of underlying rocks. Current interpretation coverage is ~110,000 line kilometres of AEM conductivity sections, or an area >2,000,000 km2, similar to the area of Greenland or Saudi Arabia. This ongoing work has led to the production of almost 600,000 depth estimate points, each attributed with interpretation-specific metadata. Three-dimensional line work and over 300,000 points are currently available for visualisation, integration and download through the GA Portal, or for download through GA’s eCat electronic catalogue. </div><div>
These interpretations demonstrate the benefits of acquiring broadly-spaced AEM surveys. Interpretations derived from these surveys are important in supporting regional environmental management, resource exploration, hazard mapping, and stratigraphic unit certainty quantification. Delivered as precompetitive data, these interpretations provide users in academia, government and industry with a multidisciplinary tool for a wide range of investigations, and as a basis for further geoscientific studies.</div>
Abstract submitted and presented at 2023 Australian Earth Science Convention (AESC), Perth WA ( https://2023.aegc.com.au/)
Simple
Identification info
- Date (Creation)
- 2023-01-14T05:00:00
- Date (Publication)
- 2023-09-19T23:37:11
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/147640
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Wong, S.
Internal Contact Author Roach, I.
Internal Contact Author Pitt, L.
Internal Contact Author Nicoll, M.
Internal Contact Author Hope, J.
Internal Contact Author Bonnardot, M.
Internal Contact Author LeyCooper, Y.
Internal Contact
- Name
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Australian Earth Science Convention (AESC) 27-30 July 2023 Perth WA
- Purpose
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This is a short abstract to accompany an oral presentation at the Australian Earth Sciences Convention 2023. This abstract is to present the work of the AEM interpretation in the 3D Geoscience Integration Activity in the Integrated Geological Mapping section, Mineral Systems Branch, Minerals, Energy and Groundwater Division.
- 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 Wong, S.
Internal 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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EFTF – Exploring for the Future
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- Project
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Australia’s Resources Framework
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- Project
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Australia’s Future Energy Resources
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- Project
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ARF
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- Project
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AFER
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- Keywords
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3D Geoscience Integration
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- Keywords
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Estimates of Geological and Geophysical Surfaces Database
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- Keywords
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EGGS
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- Keywords
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AusAEM interpretation
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- Keywords
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airborne electromagnetics interpretation
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- Keywords
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AEM
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- Keywords
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cover modelling
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- Keywords
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depth estimates
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- theme.ANZRC Fields of Research.rdf
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Structural geology and tectonics
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Resource geoscience
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Electrical and electromagnetic methods in geophysics
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Data quality
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Database systems
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Information extraction and fusion
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Land use and environmental planning
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Computational modelling and simulation in earth sciences
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Geoscience data visualisation
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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) 2023
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
Associated resource
- Association Type
- Was generated by
- Title
-
Multilayered chronostratigraphic airborne electromagnetic interpretation workflow
- Citation identifier
- 147251
- Citation identifier
- 77ad7de5-c591-4f16-aec5-d34cc44be678
Associated resource
- Association Type
- Was informed by
- Title
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Canning Basin AusAEM interpretation: hydrogen storage potential and multilayered mapping
- Citation identifier
- 146376
- Citation identifier
- 968b4ce2-7055-468c-95d4-cdda65cc5cb8
Associated resource
- Association Type
- Series
- Title
-
AusAEM1 Interpretation Data Package
- Citation identifier
- 145120
- Citation identifier
- 430acf3d-cdf6-4a78-abbc-d2f9eae5bf91
Associated resource
- Association Type
- Was informed by
- Title
-
Interpretation of the AusAEM1: insights from the world’s largest airborne electromagnetic survey
- Citation identifier
- 134283
- Citation identifier
- 92b3093b-4000-4292-8065-3f146d1baae9
Associated resource
- Association Type
- Series
- Title
-
Canning Basin AusAEM Airborne Electromagnetic Interpretation Data Package
- Citation identifier
- 147597
- Citation identifier
- 2b95d02c-ab4b-49a0-b7fb-fc9a3ec31765
- 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 Conference Page
Link to Conference Page
- Distribution format
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Resource lineage
- Statement
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<div>This abstract covers ongoing work on the interpretation of AEM using the Multilayered Chronostratigraphic AEM Interpretation Workflow. These interpretations cover large parts of the continent and are are being released as interpretation data packages on eCat, as depth estimates through the Estimates of Geological and Geophysical Surfaces database, and for 3D visualisation on the Geoscience Australia Portal. This work is conducted by the 3D Geoscience Integration Activity, in the Integrated Geological Mapping section at Geoscience Australia.</div>
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/f6296b27-5ff8-44bc-8900-014a8ecc4b60
- 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 Wong, S.
Internal Contact
Type of resource
- Resource scope
- Document
- Name
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Conference Abstract
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/147640
- Date info (Creation)
- 2023-09-19T23:31:57
- Date info (Revision)
- 2023-09-19T23:31:57
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
-
Version 2.0, September 2018
- Citation identifier
- http://pid.geoscience.gov.au/dataset/ga/122551