Forthcoming geophysical data releases

Thursday 11 October 2012 after 0900 AWST (UTC +8)

Carnarvon Basin South 2012 (P1235) airborne magnetic and radiometric survey — final data

Images and grids of final data from the regional magnetic and radiometric survey at line spacing of 200 m completed in December 2011 will be available from the GSWA website on the Latest Geophysical Surveys page at www.dmp.wa.gov.au/geophysics.

Point-located ('vector') data and grids from this survey can be purchased on disk from Geoscience Australia or downloaded free of charge from the Geophysical Archive Data Delivery System (GADDS).

Most recent geophysical data releases

Date Survey  Data status
06 Sep 2012 Collie 2011 airborne magnetic & radiometric survey Final
15 Aug 2012 Magnetic anomaly grid (80m) of Western Australia Update
09 Aug 2012 Murgoo 2011 airborne magnetic & radiometric surve Final
02 Aug 2012 Perth Basin North 2011 airborne magnetic & radiometric survey Final
26 Jul 2012 Corrigin 2012 airborne magnetic & radiometric survey Final
05 Jul 2012 Radiometric anomaly grids (100m) of Western Australia Update

Access to previously released geophysical data

Image data from previous geophysical releases can be found on our Regional Geophysical Surveys page. Digital located and grid data can be purchased on media from Geoscience Australia or downloaded free of charge through the Geophysical Archive Data Delivery System (GADDS).

Latest releases

GEOLOGICAL MAPS 1:100 000

SOUTHERN CROSS 1:100 000 Geological Series map WA Sheet 2735
by Doublier, MP

ROUNDTOP 1:100 000 Geological Series map WA Sheet 2933
by Romano, S

Products are free to download from our website as PDFs.

Training in GSWA databases and online systems

You are invited to attend a free training session hosted by the Department of Mines and Petroleum to demonstrate current online systems. This is your opportunity to try these services for yourself and chat with the staff who create and manage them.

The format is an interactive presentation which includes navigating the DMP website, searching for publications, finding mineral deposits using MINEDEX, finding digital datasets using the Data and Software Centre, open file mineral exploration reports using WAMEX, and bringing it all together with the interactive map viewer (GeoVIEW.WA). GeoMap.WA, a new GIS viewer for Windows, will also be demonstrated.

The morning sessions will be a high-level fast demonstration and overview of the use of all the programs. At the afternoon sessions, participants will be able to practise using the programs with their own actual examples and get some one-on-one advice about individual issues. You can attend one or both sessions.

Perth

ISB Training room, Ground floor
Mineral House, 100 Plain Street, East Perth
9 am – 12 noon, 2–5 pm – Wednesday 7 November

Kalgoorlie

WA School of Mines, Mine Design Lab, Room 131, Building 703, Odwyn Jones Building, corner Cassidy and MacDonald Streets, central Kalgoorlie.
9 am – 12 noon, 2–5 pm – Wednesday 14 November

To register, email your details to publications@dmp.wa.gov.au.

Spotlight on a product

Record 2012/11 Yilgarn Craton: geological setting of gold and nickel deposits in the Eastern Goldfields
by Stephen Wyche

The Yilgarn Craton in Western Australia contains evidence of the oldest crust on Earth. Greenstone successions developed after c. 3000 Ma show a complex history of juvenile crust generation and crustal reworking. There are at least three periods of greenstone-related magmatism in the Yilgarn Craton. The earliest recognized greenstone development consists of volcanic and sedimentary successions deposited between c. 3000–2900 Ma. A mantle plume at c. 2800 Ma produced large mafic–ultramafic igneous complexes and probably initiated rifting on the eastern side of the craton and incipient rifting in the NW. A second major plume, at c. 2700 Ma, was focused along the rupture created by the c. 2800 Ma event and may have been associated with the re-accretion of lithospheric blocks created by the earlier event. Komatiites generated by the c. 2700 Ma plume contain world-class nickel deposits, and structures developed subsequent to the peak of plume activity host world-class gold deposits. Recent studies of nickel and gold deposits in the Eastern Goldfields Superterrane have shown how features ranging in scale from the lithosphere to regional structural and stratigraphic controls to local volcanological and sedimentological variations can affect the size and distribution of deposits. This understanding is now being applied in exploration targeting.

This excursion guide covers deposits in the southern part of the Kalgoorlie Terrane and adjacent Kurnalpi Terrane in the Eastern Goldfield Superterrane of the Yilgarn Craton. Typical examples of nickel and gold mineralization were examined in their structural and stratigraphic context.

Access GSWA products

You can download maps, reports, and digital information free of charge from our website.

Click on these links to take you to the download page for that product:

Hard copies

Hard copy publications are also available to purchase from the eBookshop or the First Floor counter at Mineral House, 100 Plain Street, East Perth, WA 6004.

Contact us

For information on publications, email publications@dmp.wa.gov.au
or telephone +61 8 9222 3459/ fax +61 8 9222 3444.

For information on digital data, email the Digital data administrator on gsd.dda@dmp.wa.gov.au
or telephone +61 8 9222 3816.

Physical address

Mineral House
100 Plain Street
East Perth WA 6004
www.dmp.wa.gov.au/gswa

For more information about GSWA and its products, go to the GSWA website.