Minerals Alert November 2004

  1. Geoscience Australia Minerals Division Annual Seminar
  2. Free Trial to explore new online geoscience bibliographic database
  3. Geophysical Data Release - Magnetic Anomaly Map of Australia (Fourth Edition)
  4. Airborne Geophysical Data Release - Murchison Region, WA
  5. New Geochronology data in Ozchron
  6. About "Minerals Alert"

1. Geoscience Australia Minerals Division Annual Seminar

The 2004 Geoscience Australia Minerals Exploration Seminar will be held in Perth on November 29. Themes in the program will be the regional geology and prospectivity of the Yilgarn, Tanami and Gawler; mineral systems, resources and potential particularly for gold and nickel and topics on exploring under cover. Full details of the program and registration details are available here.

To receive further information as it becomes available please contact Mike Huleatt by phone on +61 (0)2 6249 9087, by fax on +61 (0)2 6249 9983 or by email at Mike.Huleatt@ga.gov.au

2. Free Trial to explore new online geoscience bibliographic database

The search for Australian geoscience material has received a boost with the release of AusGeoRef, a new online bibliographic database, on 8 October. Set to make research quick and easy, AusGeoRef is the result of collaboration between the American Geological Institute (AGI) and Geoscience Australia. To encourage users to trial the new database, AGI is offering free use of the database throughout the months of October and November.

For a free trial or to subscribe, go to www.ausgeoref.org - or follow the link from http://www.geoscience.gov.au

3. Geophysical Data Release - Magnetic Anomaly Map of Australia (Fourth Edition)

Geoscience Australia (GA) is releasing the fourth edition of the "Magnetic Anomaly Map of Australia" on 29 November 2004 at the Geosicence Australia Mineral Exploration Seminar. Hardcopy maps showing colour, gradient enhanced Total Magentic Intensity (TMI) images will be available at both 1:5 000 000 and 1:25 000 000 scales. This new edition of the map incorporates new data from the State and Territory Geological Surveys and GA. It is estimated that 19 million line-kilometres of survey data were acquired to produce the gridded data, 10 million line-kilometres more than in the third edition map released in 1999.

Also available in this release are two composite grids of TMI data:

  • A grid of airborne survey data at 7.2 seconds-of-arc (approx. 250 m cell size) and
  • A grid of airborne and marine survey data at 15 seconds-of-arc (approx. 400 m cell size).

Both grids are in ERMapper format, with geodetic projection and GDA94 datum. The gridded data will be available for free, downloaded via the Internet using GA's Geophysical Archive Data Delivery System (GADDS).

Gridded data on two CD-ROMs may also be purchased from the GA Sales Centre at cost of A$99.00 per CD (including GST; postage and packing is extra). The colour, gradient enhanced TMI pixel image maps are available for free from the Sales Centre - there is a 1:5 000 000 scale (approx. A0) map and a 1:25 000 000 scale (approx. A4) map. Please note that although the maps are free, there is a charge to cover postage and packaging. Attendees at the Geoscience Australia Mineral Exploration Seminar will receive a free copy of the map.

4. Airborne Geophysical Data Release - Murchison Region, WA

On 1 November 2004 Geoscience Australia (GA) released over 146,000 line kilometres of high resolution airborne geophysical data from the Murchison region of Western Australia covering the Cue, Kirkalocka, Ninghan and Yalgoo 1:250 000 Sheet areas.

The data in this release comprises magnetic, gamma-ray and elevation located data and grids from surveys flown for GA between April and August 2004 and one private company survey flown in November 1995.

Acquired in three surveys, the new data were collected on east-west flight lines spaced 400 metres apart at a flying height of 60 metres above ground level. The private company survey data were collected on north-south flight lines spaced 200 metres apart at a flying height of 60 metres above ground level.

Further information on this release and a locality diagram of the survey area can be found on the GA web site.

These digital data are available for free download using the Geophysical Archive Delivery System (GADDS). A CD-ROM of this newly released data is also available at a cost of A$99 (incl. GST, postage and packaging extra) from the GA Sales Centre (Tel:02-6249 9966, Fax:02-6249 9982, E-mail: Sales@ga.gov.au

5. New Geochronology data in OZCHRON

Geochronology reports for 32 samples entered into OZCHRON in September can be viewed on the OZCHRON reports page. The recently released data includes analyses from samples collected in Tasmania, the Gawler region of SA and Mount Isa. The web page includes all samples entered into OZCHRON since April 2004.

6. 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