Minerals Alert November 2009

  1. New seismic survey in southeast Australia
  2. New gravity survey data added to the Australian National Gravity Database
  3. Seismic data available over the web
  4. Update on geophysical data releases
  5. About Minerals Alert

1. New seismic survey in southeast Australia

A deep crustal seismic survey over the Southern Delamerian Fold Belt is due to commence in mid November. This survey is a collaborative project between AuScope (an initiative under the National Collaborative Research Infrastructure Strategy), GeoScience Victoria (a division of the Victorian Department of Primary Industries), the South Australian Department of Primary Industries and Resources (PIRSA) and Geoscience Australia.

The survey consists of two traverses, one an east-west trending line beginning near Horsham in Victoria and concluding north of Naracoorte in South Australia. The other a north-south trending line which will cross the main traverse just east of the South Australian/Victorian border. Acquisition of this survey is due to commence mid November and it is anticipated that 197km of reflection seismic and gravity data will be acquired.

While in the region, a third 70km seismic line will be acquired near Ararat on behalf of GeoScience Victoria.

For further information, email jenny.maher@ga.gov.au; or phone +61 2 6249 9896.

2. New gravity survey data added to the Australian National Gravity Database

Data from the 2009 Oaklands Basin - Jerilderie Gravity Survey have been entered into the Australian National Gravity Database (ANGD). The survey was funded and managed by the New South Wales Department of Primary Industries under its New Frontiers Initiative with the results provided to Geoscience Australia for entry into the ANGD. This survey of 2350 stations is located on the Canberra 1:1 Million sheet area. Station spacing is 4km x 4km with some infill at 2km spacing east of Jerilderie.

Mineral Resources Tasmania, which forms part of the Tasmanian Department of Infrastructure, Energy and Resources recently provided 2737 stations from two surveys funded under its TasExplore Project. The two surveys are located in the north east of Tasmania and are designed to infill existing surveys.

Since August 2009, a total of 13 249 new gravity stations have been added to the ANGD from 17 open file company surveys located in the Northern Territory, South Australia and Victoria.

Data were supplied to Geoscience Australia for inclusion into the ANGD by the Northern Territory Geological Survey, PIRSA and GeoScience Victoria.

The two Northern Territory surveys (4178 stations) are situated on the Oodnadatta 1:1 Million sheet area. These two surveys formed part of the Northern Territory 2008-09 Geophysics and Drilling Collaboration Program between the Northern Territory Geological Survey and private industry. Station spacing for both surveys was 1km x 1km.

The 12 South Australian surveys (5002 stations) are situated on the Tarcoola, Port Augusta and Adelaide 1:1 Million sheet areas. The data from the three Victorian surveys (4069 stations) are on the Melbourne and Hamilton 1:1 Million sheet areas.

All open file data in the Australian National Gravity Database, can be downloaded from the Geophysical Archive Data Delivery System (GADDS).

For further information, email mario.bacchin@ga.gov.au; or phone +61 2 6249 9308.

3. Seismic data available over the web

Deep crustal seismic data acquired through the Onshore Energy Security Program are now available. Processed SEG Y data and TIFF images, as well as surveying and gravity data, are available on the Seismic Acquisition and Processing Project web page.

For further information, email jenny.maher@ga.gov.au; or phone +61 2 6249 9896.

4. Update on geophysical data releases

The current status of Geoscience Australia's geophysical survey data acquisition is now available in a comprehensive table.

The Seemore (Eucla Basin 1) and Yampi-Derby (North Canning 2) Airborne magnetic and radiometric surveys have been released via the Geophysical Archive Data Delivery System (GADDS).

For further information, email murray.richardson@ga.gov.au; or phone +61 2 6249 9229.

5. About Minerals Alert

For more information contact Mike Huleatt on +61 2 6249 9087 or email mike.huleatt@ga.gov.au.

To view past editions of Geoscience Australia's Minerals Alert, visit the Minerals Alert Newsletter Archive.

Topic contact: media@ga.gov.au Last updated: October 4, 2013