Product catalogue
Exploiting Cenozoic volcanic activity to quantify upper mantle structure beneath eastern Australia
There is a growing recognition that lithospheric structure places first-order controls on the distribution of resources within the upper crust. While this structure is increasingly imaged using geophysical techniques, there is a paucity of geological constraints on its morphology and temporal evolution. Cenozoic intraplate volcanic rocks along Australia’s eastern seaboard provide a significant opportunity to constrain mantle conditions at the time of their emplacement and thereby benchmark geophysical constraints. This volcanic activity is subdivided into two types: age-progressive provinces generated by the passage of mantle plumes beneath the plate; and age-independent provinces, which may arise from edge-driven convection at a lithospheric step. In this study, we collected and analysed 78 igneous rock samples from both types of volcanoes across Queensland. We combined these analyses with previous studies to create and augment a comprehensive database of Australian Cenozoic volcanism. Geochemical modelling techniques were used to estimate mantle temperatures and lithospheric thicknesses beneath each province. Our results show that melting occurred at depths of 45–70 km across eastern Australia. Mantle temperatures are inferred to be ~50–100 °C higher beneath age-progressive provinces than beneath age-independent provinces. These results agree with geophysical observations used to aid resource assessments and indicate that upper mantle temperatures have varied over Cenozoic times.
<b>Citation:</b> Ball, P.W., Czarnota, K., White, N.J. and Champion, D.C. 2020. Exploiting Cenozoic volcanic activity to quantify upper mantle structure beneath eastern Australia. 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)
- 2020-01-24
- Date (Publication)
- 2020-06-30T05:06:38
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/135117
- Citation identifier
- Digital Object Identifier/http://dx.doi.org/10.11636/135117
- Cited responsible party
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Role Organisation / Individual Name Details Author Ball, P.W.
Author Czarnota, K.
Author White, N. J.
Author Champion, D.C.
- Purpose
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EFTF Extended Abstract
- 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 Czarnota, K.
Resource provider Minerals, Energy and Groundwater Division
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
Temporal extent
- Time period
- 2020-01-01 2020-01-31
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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EARTH SCIENCES
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- Project
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Exploring for the Future
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- Theme
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Geochemistry
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- Theme
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Rare Earth Elements
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- Theme
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Cenozoic volcanism
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- Keywords
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EftF
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- Keywords
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Mantle
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- Keywords
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inversion
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- Keywords
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melt
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- Keywords
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lithosphere
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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
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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) [5.2 MB]
Extended Abstract for download (pdf) [5.2 MB]
- Distribution format
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pdf
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Resource lineage
- Statement
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Datasets used in this study are based on geochemistry data in the Geoscience Australia OzChem database, state and territory geological surveys and published academic literature. New geochemical data acquired as part of the Exploring for the Future program is available through the OzChem database. Geophyscail datasets used in this study are from Hoggard et al. (2020).
Hoggard, M.J., Czarnota, K., Richards, F.D. et al. Global distribution of sediment-hosted metals controlled by craton edge stability. Nat. Geosci. 13, 504–510 (2020). https://doi.org/10.1038/s41561-020-0593-2
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/f6d69a63-5637-4379-88bf-5f6b08228f69
- 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 Point of contact Czarnota, K.
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/135117
- 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