AusMT / surveys / Eastern Arunta Long-Period MT Transect 2004 (Adelaide University)

Eastern Arunta Long-Period MT Transect 2004 (Adelaide University) LPMT

Magnetotelluric survey · Northern Territory · Adelaide University

Twenty-nine long-period magnetotelluric soundings across the eastern Arunta region and the southern Georgina Basin, Northern Territory, acquired in July to August 2004.

About this survey

Twenty-nine long-period magnetotelluric soundings across the eastern Arunta region and the southern Georgina Basin, Northern Territory, acquired in July to August 2004. Selway (2006) calls the line the Eastern Arunta Profile, prints thirty station positions for it and reports 33 sites attempted at approximately 5 km spacing and 30 recovered; its figures show 27 inverted. Twenty- three of the served sites run 152 km north to south from sh to dt; the other six lie west of them, on the track-forced offset the source describes. Every file carries the full impedance tensor and a tipper on a dyadic period grid running 3.2 s to 2,731 s, 11 to 20 periods a site. The served files are a 2026 Geotools export; the export blanked the acquirer, the elevations and the acquisition dates. Geoscience Australia re-occupied the same corridor in 2009 for deep seismic traverse 09GA-GA1, and its sites fall between these ones rather than on them.

Data and downloads

Stations (29)

Contributors and organisations

Organisation

Adelaide University

Licence

CC BY 4.0

Instruments

Bartington
copper/copper sulphate porous pot electrodes

Processing

RRRMT

Funding

Northern Territory Geological Survey

Publications

Kirkby, A. and Duan, J. (2019). Crustal Structure of the Eastern Arunta Region, Central Australia, From Magnetotelluric, Seismic, and Magnetic Data. Journal of Geophysical Research: Solid Earth, 124(8), 9395 to 9414. 10.1029/2018JB016223

Selway, K. M. (2006). Magnetotelluric experiments in central and southern Australia and their implications for tectonic evolution; this line is chapter 7, PDF 91 to 106, with its station positions in Appendix 1 at PDF 136. PhD thesis, The University of Adelaide (hdl:2440/110300).

Selway, K. M., Hand, M. and Heinson, G. (2005). Magnetotelluric surveys in the Arunta, in: Annual Geoscience Exploration Seminar (AGES) 2005. Record of Abstracts, pages 20 to 22. Northern Territory Geological Survey Record 2005-001.

Identifiers and provenance

Machine-readable survey record · catalogue schema mtcat 2.0