Magnetotelluric survey of the Burra region, Northern Mount Lofty Ranges, South Australia, 2017-2018

Brief description

This record was harvested by RDA at 2026-09-03T11:58:32.790222+10:00 from NCI's Data Catalogue where it was last modified at 2026-02-11.

Full description

Broadband magnetotelluric (MT) data were acquired across the Burra region of the Northern Mount Lofty Ranges within the Adelaide Rift Complex, South Australia, to investigate crustal and upper-lithospheric electrical conductivity structure at regional scale. The survey comprises a total of 82 broadband MT sites distributed across a rectangular grid spanning approximately 80 km west-east and 120 km north-south, with an average site spacing of approximately 10 km and a total survey area of approximately 9,600 km². Data acquisition was undertaken in two phases. An initial trial deployment of 11 sites was conducted in October 2017, followed by the main regional survey undertaken between July and October 2018. The trial sites form an integral component of the overall survey and are included within the total site count. This collection provides a broadband MT dataset intended to support tectonic interpretation of the Adelaide Rift Complex and integration with complementary geological and 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 during a broadband magnetotelluric (MT) survey conducted across the Burra region of the Northern Mount Lofty Ranges, South Australia, between 2017 and 2018. Field acquisition was undertaken in two phases. An initial trial deployment was conducted in October 2017, followed by the main regional survey undertaken between July and October 2018. Trial sites form an integral component of the overall survey and are included within the total dataset. 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 funding by Ausmex Minerals. This collection documents the acquisition history, instrumentation, funding sources, and operational context associated with the Burra MT survey and provides provenance information for all derived datasets.