Yilgarn Craton – Officer Basin – Musgrave Province (YOM) deep seismic reflection and magnetotelluric (MT) surveys 2011

The primary objective of the YOM deep seismic reflection survey was to image the western Officer Basin, one of Australia’s underexplored frontier sedimentary basins. In addition, this survey gathered new data to improve the understanding of the eastern Yilgarn Craton and its boundary with the Musgrave Province.
Locations of YOM seismic lines
Locations of YOM seismic lines

The survey was jointly funded by Geoscience Australia (GA) through their Onshore Energy Security Program (OESP) and the Geological Survey of Western Australia (GSWA) through its Exploration Incentive Scheme (EIS). The survey was designed to gather pre-competitive geophysical data. The main aim was to expand the scientific knowledge of water resources, potential geothermal sites, petroleum prospectivity, and mineral exploration potential.

This data supplements the 2010 Youanmi deep crustal reflection and MT survey and the 2001 Yilgarn deep crustal seismic survey. Combined, it will create a comprehensive dataset that crosses most of central Western Australia.

The data have now been interpreted and the preliminary results released at a public workshop held at the department’s Perth headquarters in June 2013. The extended abstract volume and accompanying material, including the PowerPoint presentations, are available for download from the Public release data below. The migrated uninterpreted and interpreted seismic sections are available for download (in multiple formats) directly from Geoscience Australia. All MT data are available for download from the Airborne Geophysics Index (MAGIX) layers using GSWA’s interactive map-viewing application GeoVIEW.WA.

Collaboration logos

Cross-section images

Migration_11gayo1_6s_pt1
Migration_11gayo1_6s_pt2
Migration_11gayo1_22s
Final stack_11gayo1_6s_pt1
Final stack_11gayo1_6s_pt2
Final stack_11gayo1_22s

The YOM seismic data is available from Geoscience Australia.

Publicly released data

The workshop consisted of 11 presentations and was accompanied by the release of a series of extended abstracts and geological plates. All of the data including the PowerPoint presentations can be downloaded from the links below.

Geoscience Australia Record 2013/028 Yilgarn Craton — Officer Basin — Musgrave Province Seismic and MT workshop

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YOM workshop 19 June 2013 — presentations

Presentation Title Presenter Organisation
Acquisition & processing of the 2011 Yilgarn-Officer-Musgrave (YOM) seismic survey (L199) Josef Hozschuh GA
Geological setting and interpretation of the southwest half of deep seismic reflection line 11GA–YO1 Yamarna Terrane of the Yilgarn Craton and the western Officer Basin Russell Korsch GA
Regional geology and seismic interpretation of 11GA-YO1 Musgrave Province Heather Howard GSWA
Interpretation of the northeastern end of the YOM seismic line constraints from field observations Raphael Quentin de Gromard GSWA
3D Geological Model and Geophysical Investigation of the Yilgarn-Officer-Musgrave Region James Goodwin GA
Electrical resistivity distribution from magnetotelluric data in the region of YOM survey Jingming Duan GA
Four-dimensional architecture of the west Musgrave Province Alan Aitken CET
Numerical modelling of the west Musgrave Province Weronika Gorczyk CET, GSWA
Lithospheric structure in the vicinity of the 11GA-YO1(YOM) reflection profile Brian Kennett ANU
Geodynamic implications of the Yilgarn–Officer–Musgrave (YOM) deep seismic reflection survey part of a ~1800 km transect across Western Australia from the Pinjarra Orogen to the Musgrave Province Russell Korsch GA
Yilgarn–Officer–Musgrave (11GA-YO1) implications for mineral systems Alan Aitken CET

 

Contact
For more information contact:
geological.survey@dmirs.wa.gov.au