Authors / CoAuthors
Duan, J. | Huston, D.
Abstract
<div><strong>Output Type: </strong>Exploring for the Future Extended Abstract</div><div><br></div><div><strong>Short Abstract: </strong>The Australian Lithospheric Architecture Magnetotelluric project (AusLAMP) is a collaborative, national survey that aims to acquire long period magnetotelluric (MT) data at 0.5° spacing (~55 km) across the Australian continent. AusLAMP started in 2013 and is ~51% complete to date. Over the last decade, regional-scale conductivity/resistivity AusLAMP models have been produced following data acquisition campaigns, but a levelled national model has not emerged. Here we present the largest AusLAMP conductivity model incorporating 85% of data acquired to date. The model images the conductivity structure of the Australian lithosphere across most parts of central and eastern Australia, including Tasmania. The resolved resistivity structures broadly conform with identified major geological domains and crustal boundaries but also reveal significant variations within geological provinces, orogens and cratons. There are strong spatial associations between crustal/mantle conductors and copper and gold deposits and carbonatites, which provide further evidence that major lithospheric conductors control the distributions of a range of mineral systems. This new model is a powerful bottom-up approach to inform exploration, particularly in covered and under-explored regions.</div><div><br></div><div><strong>Citation: </strong>Duan J. & Huston D., 2024. AusLAMP - mapping lithospheric architecture and reducing exploration search space in central and eastern Australia. In: Czarnota, K. (ed.) Exploring for the Future: Extended Abstracts. Geoscience Australia, Canberra. https://doi.org/10.26186/149675</div>
Product Type
document
eCat Id
149675
Contact for the resource
Resource provider
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
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Digital Object Identifier
Keywords
- ( Project )
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- EFTF – Exploring for the Future
- ( Project )
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- AusLAMP
- ( Project )
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- Magnetotelluric
- ( Project )
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- Australia’s Resources Framework
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- AusLAMP
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- resistitivty model
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- Lithospheric structure
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- Mineral potential
- theme.ANZRC Fields of Research.rdf
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- Electrical and electromagnetic methods in geophysics
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- Published_External
Publication Date
2024-08-12T05:39:27
Creation Date
2024-06-14T12:00:00
Security Constraints
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Status
completed
Purpose
An extended abstract regarding AusLAMP results as part of EFTF program.
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Lineage
<div>The AusLAMP project is a collaborative, national survey that acquires magnetotelluric data across the Australian continent. As part of EFTF program, a resistivity model was derived from AusLAMP data in central and eastern Australia. The extended abstract discusses the results and key findings from the AusLAMP model as part of EFTF publications. </div>
Parent Information
Extents
[-44, -9, 112, 154]
Reference System
Spatial Resolution
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