Magnetotelluric survey of the Vulcan IOCG Prospect, South Australia, 2022

Brief description

This record was harvested by RDA at 2026-09-10T11:58:22.971322+10:00 from NCI's Data Catalogue where it was last modified at 2026-02-23.

Full description

Broadband magnetotelluric (MT) data were acquired across the Vulcan prospect region of South Australia to investigate subsurface electrical conductivity structure associated with the Vulcan IOCG prospect. The survey comprised 102 broadband MT site deployments, including one continuously recording remote-reference site, arranged in a regular grid with approximately 1 km site spacing covering an area of approximately 9 × 9 km. Data acquisition was conducted during a dedicated field campaign using portable broadband MT systems. A nodal seismic array was deployed concurrently, with seismic stations co-located at the MT sites to support integrated geophysical investigation. A complementary audio-frequency magnetotelluric (AMT) survey was also undertaken within the project area. This collection provides a broadband MT dataset suitable for high-resolution analysis and modelling of crustal electrical resistivity structure within the Vulcan IOCG prospect.

Credit

This project was enabled by AuScope and the Australian Government via the National Collaborative Research Infrastructure Strategy (NCRIS): https://www.auscope.org.au

Lineage

Data in this collection were acquired during a broadband magnetotelluric (MT) survey conducted across the Vulcan IOCG prospect in South Australia. The survey comprised 102 broadband MT site deployments, including one continuously recording remote-reference site, arranged in a regular grid with approximately 1 km site spacing covering an area of approximately 9 × 9 km. A nodal seismic array was deployed concurrently, with seismic stations co-located at the MT sites as part of a coordinated geophysical campaign. A complementary audio-frequency magnetotelluric (AMT) survey was also conducted within the project area. Field acquisition employed LEMI-423 broadband magnetotelluric systems hosted by the University of Adelaide and accessed through the AuScope - ANSIR Research Facility for Earth Sounding. The instrumentation was acquired through a combination of Geological Survey of South Australia and AuScope NCRIS funding. Continued availability of the instrumentation pool is supported through ongoing NCRIS investment via AuScope, including maintenance, calibration, refurbishment, and operational management activities. AuScope is supported by the Australian Government’s National Collaborative Research Infrastructure Strategy (NCRIS). Data acquisition was jointly funded by the Geological Survey of South Australia and FMG Resources Pty Ltd through Accelerated Discovery Initiative (ADI) project RD02-260. This collection documents the acquisition history, instrumentation, funding sources, and operational context associated with the Vulcan MT survey and provides provenance information for all derived datasets.