Product catalogue
Interpretation of the AusAEM1: insights from the world’s largest airborne electromagnetic survey
The AusAEM1 survey is the world’s largest airborne electromagnetic survey flown to date, extending across an area exceeding 1.1 million km2 over Queensland and the Northern Territory. Approximately 60 000 line kilometres of data were acquired at a nominal line spacing of 20 km. Using this dataset, we interpreted the depth to chronostratigraphic surfaces, assembled stratigraphic relationship information, and delineated structural and electrically conductive features. Our results improved understanding of upper-crustal geology, led to 3D mapping of palaeovalleys, prompted further investigation of electrical conductors and their relationship to structural features and mineralisation, and helped us continuously connect correlative outcropping units separated by up to hundreds of kilometres. Our interpretation is designed to improve targeting and outcomes for mineral, energy and groundwater exploration, and contributes to our understanding of the chronostratigraphic, structural and upper-crustal evolution of northern Australia. More than 150 000 regional depth measurements, each attributed with detailed geological information, are an important step towards a national geological framework, and offer a regional context for more detailed, smaller-scale AEM surveys.
<b>Citation:</b> Wong, S.C.T., Roach, I.C., Nicoll, M.G., English, P.M., Bonnardot, M.-A., Brodie, R.C., Rollet, N. and Ley-Cooper, A.Y., 2020. Interpretation of the AusAEM1: insights from the world’s largest airborne electromagnetic survey. 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)
- 2020-06-17
- Date (Publication)
- 2020-06-17T07:23:36
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/134283
- Citation identifier
- Digital Object Identifier/http://dx.doi.org/10.11636/134283
- Cited responsible party
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Role Organisation / Individual Name Details Author Wong, S.C.T.
Author Roach, I.C.
Author Nicoll, M.G.
Author English, P.M.
Author Bonnardot, M.
Author Brodie, R.C.
Author Rollet, N.
Author Ley-Cooper, A.Y.
- Purpose
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EFTF Extended Abstract
- Status
- Final
- Point of contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Wong, S.
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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GEOPHYSICS
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GEOLOGY
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Structural Geology
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Electrical and Electromagnetic Methods in Geophysics
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- Project
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AusAEM
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- Project
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Exploring for the Future
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- Project
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EFTF
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- Keywords
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Basins
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- Keywords
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Surface
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- Keywords
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Airborne Electromagnetics
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- Place
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North Australia Craton
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- Place
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Northern Australia
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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) [2.7MB]
Extended Abstract for download (pdf) [2.7MB]
- Distribution format
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pdf
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Resource lineage
- Statement
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Interpretation of AusAEM1 conductivity sections sheds new light on basin and structural features, providing insights into sedimentary cover, mineral provinces and groundwater systems in Northern Australia. Outcomes include: 1) regional depth to basement measurements; 2) re-evaluation of sedimentary basin boundaries and thicknesses; 3) detection and structural analysis of palaeovalleys; and 4) mapped geometry and distribution of conductive features. These interpretations help characterise undercover geology, improve mineral and groundwater exploration targeting, and add to our understanding of the chronostratigraphic, structural and tectonic evolution of northern Australia.
Metadata constraints
- Title
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Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
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urn:uuid/92b3093b-4000-4292-8065-3f146d1baae9
- 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 Wong, S.
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/134283
- 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