Magnetotelluric survey of the Newer Volcanic Province, Victoria, 2019

Brief description

This record was harvested by RDA at 2026-09-03T11:58:31.048857+10:00 from NCI's Data Catalogue where it was last modified at 2026-04-14.

Full description

Broadband magnetotelluric (MT) data were acquired in August 2019 across the Newer Volcanic Province in southeast Australia to investigate crustal and upper-lithospheric electrical conductivity structure in three dimensions. This dataset comprises broadband MT measurements from 23 survey sites located within Victoria and forms part of a larger gridded MT survey spanning South Australia and Victoria. Survey sites were deployed in a regular grid configuration designed to infill and enhance existing regional MT coverage from the AusLAMP program and earlier state-based surveys, with an average site spacing of approximately 25 km. The deployment improves spatial resolution relative to existing datasets and provides enhanced constraints on the three-dimensional electrical structure of the lithosphere. This collection represents the Victorian component of the 2019 Newer Volcanic Province MT survey. Together with the companion South Australian collection, it provides a broadband MT dataset suitable for investigating lithospheric structure and geodynamic processes beneath the Newer Volcanic Province and for integration with regional geophysical datasets.

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 as part of the broader 2019 Newer Volcanic Province broadband magnetotelluric (MT) survey, which spanned South Australia and Victoria. This collection contains the Victorian component of that survey. Field acquisition was conducted in August 2019 using a regular grid configuration designed to infill and enhance existing regional MT coverage from the AusLAMP program and earlier state-based surveys. The broader survey comprised 54 unique MT station locations, including 23 sites located within Victoria. A continuously recording remote-reference station was operated within South Australia for the duration of the survey. 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 within Victoria was funded by Adelaide University. This collection documents the acquisition history, instrumentation, funding sources, and operational context associated with the Victorian component of the 2019 Newer Volcanic Province MT survey and provides provenance information for all derived datasets.