Minerals Alert November 2006

  1. New map for nickel explorers
  2. 3D geological mapping
  3. Events in Canberra for SEE Grid week 27 November - 1 December
  4. Update on geophysical survey data release
  5. New geophysical surveys
  6. Update on geophysical survey data acquisition
  7. About Minerals Alert

1. New map for nickel explorers

To assist the nickel industry, Geoscience Australia released a new 1:3 500 000 scale colour map "A Synthesis of Australian Proterozoic Mafic-Ultramafic Magmatic Events. Part 1: Western Australia", at the 2006 Australian Nickel Conference in Perth (18th-19th October). The map, for the first time, summarises the major known Proterozoic mafic and ultramafic magmatic events and associated mineral deposits in Western Australia. Fifteen major magmatic events have been recognised with tholeiitic mafic systems dominating most provinces. Separate inset diagrams highlight the distribution of large igneous provinces (LIPS: large volumes of coeval mafic magmatism), different generations of dolerite dykes and sills, gravity and magnetic anomalies, and geochronological data, which underpins the main event map. A presentation "Proterozoic mafic-ultramafic magmatic events: Implications for nickel mineralisation" at the conference highlighted the key features of the map.

For further information, please email Dean Hoatson, or phone +61 (0)2 6249 9593.

2. 3D geological mapping

An open invitation is offered to anyone with an interest in 3D geological mapping to attend a GeoModeller user meeting, Tuesday 28 November 2006 at Geoscience Australia. For the past 18 months, the State and Territory geoscience agencies, Geoscience Australia and CSIRO have supported the development of the GeoModeller software for 3D geological mapping and potential field inversion by Intrepid Geophysics and Bureau de Recherches Géologiques et Minières (BRGM). The user meeting will include an overview of the GeoModeller 3D mapping methodology, a run down on the features in the v1.2 release, a special focus on the batch gravity and magnetic inversion module, plus presentations from a range of users. There is no charge to attend this meeting, but you must register with Ainsley Austin of Intrepid Geophysics.

For further information, please email Richard Lane of Geoscience Australia or phone +61 (0)2 6249 9264.

For further information about GeoModeller, visit the GeoModeller website.

3. Events in Canberra for SEE Grid week 27 November - 1 December

Event 1: Monday 27 November, Geoscience Australia, Symonston, ACT: Course on emerging approaches to SDI implementation

Outline: Spatial Data Infrastructures (SDI) allow cost-effective sharing of information and services in support of multiple business activities. To meet future needs considerable care is required to design and implement them. This course presents a framework for understanding SDI design with an emphasis on identifying the practical issues affecting governance and implementation, and emerging best practices around the world. The course will cover principles semantic interoperability, registries, Service Oriented Architectures and OGC Web Services. The course is organised by the Spatial Information Cooperative Research Centre and will be run by Rob Atkinson of Social Change Online.

The cost is $250 per person ($200 per person for registrants of the SEE Grid conference). Further details are at Spatial Information Cooperative Research Centre web site. To register, please email training@crcsi.com.au.

Event 2: Tuesday 28 November, National Library of Australia, Canberra: Seminar on Standards: what busy managers need to know

Outline: The seminar will focus on the business of standards - why standards? Which ones are important? How do standards fit together? What is the business case for adopting standards? What are the benefits? How are standards relevant to the spatial domain? In essence, what do busy managers really need to know about standards? This seminar is being organised by the Office of Spatial Data Management (OSDM), the Australian Government Information Management Office (AGIMO), the Department of Finance and Administration, and the National Library of Australia (NLA).

Attendance is free. Further details are available at the OSDM web site. To register, please email spatial@red.gov.au.

Event 3: Wednesday 30 November, Geoscience Australia, Symonston, ACT: Workshop on strategic issues for building, managing and delivering 3D models

Outline: The Government Geoscience Information Policy Advisory Committee (GGIPAC) is extending an invitation to people interested in the online discovery, management, and delivery of 3D models and modelling attributes, to come to a one day workshop. The aim is to help flesh out data management issues related to the 3D modelling process and to better understand the increasing diversity of use cases for 3D models.

The cost is $150 and further details are available through the SEE Grid home page. Download the conference brochure, and registration form.

Event 4: 30 November - 1 December, CSIRO Discovery Centre, Black Mountain, Canberra: SEE Grid lll Conference on computational modelling and decision support in the Solid Earth and Environmental Community.

Outline: The Solid Earth and Environment Grid Community (SEE Grid) is an established international Community of Practice. It brings together people in the Earth, environmental and computing sciences to address the issues of transparent access to data and knowledge about the Earth. The program for SEE GRID III has been designed to provide an integrated perspective of the latest international advancements towards data access and applications, including advancements in standards, supporting infrastructure and practical applications. The program incorporates work on sensors, which are becoming increasingly important for the emergency management and natural resources sectors. There will also be papers on the Commonwealth Government's National Collaborative Research Infrastructure Strategy (NCRIS). Papers on computational modelling and simulation will give insights into how high performance computing will make it possible to address increasingly sophisticated and complex scientific problems. The conference is being organised jointly by CSIRO and Geoscience Australia.

The cost is $350 for the 2 days including dinner. Further details are available through the SEE Grid home page. Download the conference brochure, and registration form.

4. Update on geophysical data releases

Data from the recent Bowen-Surat geophysical survey was released in October 2006. The final dataset can be downloaded from the Geoscience Australia Geophysical Archive Data Delivery System (GADDS) facility at no charge.

For further information, please email Murray Richardson, or phone +61 (0)2 6249 9229.

5. New geophysical surveys

Requests for quotation close on Wednesday 1 November for an airborne calibration survey across every 1:1 million standard map sheet covering onshore Australia.

The work requires the acquisition, processing (radiometric data only) and supply of approximately 145 000 line kilometres of raw and processed airborne magnetic and radiometric data. The north-south flight lines will be equally spaced 75 kilometres across each 1:250 000 standard map sheet and the east-west tie lines will be located at the boundary of each 1:1 million sheet tile. The nominal terrain clearance will be 80 metres above ground level. The Australia-Wide Airborne Geophysical Tie-line Survey (AWAGS 2) has the objective of providing a common datum for all of the airborne radiometric and magnetic data in Australia.

For further information, please e-mail Murray Richardson; or phone +61 (0)2 6249 9229.

Geoscience Australia will be managing a new data acquisition program in Queensland and Tasmania.

Location State Survey Area (km2) Gravity Stations Flight Lines Spacing Ground Clearance Notes
Mount Isa C1 - Duchess and Urandangi Qld Gravity 68 000 with C2 (below) ~9 236 with C2 (below) N/A 2.0 km grid N/A Data acquisition commenced on 20 October. Requests for quotation for the provision of airborne magnetic and radiometric coverage closed on 18 October
Mount Isa C2 - Glenormiston and Mount Whelan Qld Gravity 68 000 with C1 (above) ~9 236 with C1 (above) N/A 4.0 km grid N/A Data acquisition commenced on 20 October. Requests for quotation for the provision of airborne magnetic and radiometric coverage closed on 18 October
East Isa North Qld Magnetic & Radiometric 39 940 N/A east-west 400 m 80 m The survey covers parts of the Richmond, Hughenden, McKinlay, Manuka and Tangorin 1:250 000 map sheets
East Isa South Qld Magnetic & Radiometric 51 560 N/A east-west 400 m 80 m The survey covers parts of the McKinlay, Manuka, Mackunda, Winton, Brighton Downs and Maneroo 1:250 000 map sheets
North-East Tasmania Tas Airborne magnetic & radiometric 8600 N/A east - west 200 m 90 m Data acquisition will commence in November, and will cover approx 51 280 line km of magnetic and radiometric data. Survey covers Tasmanian land mass over part of the following standard 1:100 000 map sheets - Ninth Island, Cape Portland, Swan Island, St Patricks, Forester, Georges Bay, St Pauls and Break O'Day
Flinders Island Tas Airborne magnetic & radiometric 2900 N/A east - west 200 m 90 m Data acquisition will commence in November, and will cover approx 18 600 line km of magnetic and radiometric data

For further information, please email Murray Richardson, or phone +61 (0)2 6249 9229.

6. Update on geophysical survey data acquisition

The status of current surveys is:

Location State Survey % Complete Gravity Stations Flight Lines Spacing Ground Clearance Comments
Musgrave Extension WA Airborne magnetic & radiometric 100% N/A northern area north-south; southern area east-west 400 m 60 m Completed 10 October
Ashburton WA Airborne magnetic & radiometric 34% N/A north-south 400 m 60 m  
Southern Officer Basin WA Airborne magnetic & radiometric 46% N/A north-south 400 m 60 m  
Webb WA Gravity 100% 4100 new east-west over an area of 24 800 km2 2.5 km N/A Data will be released in November
Murchison WA Gravity N/A 3600 new east-west over an area of 22 000 km2 2.5 km N/A This survey is expected to commence in November
Isa South-West Qld Airborne magnetic & radiometric 100% N/A east-west 400 m 80 m Data processing is continuing
Isa South-East Qld Airborne magnetic & radiometric 82% N/A east-west 400 m 80 m  
Isa Area B Qld Gravity 100% 9898 new east-west 2 km & 4 km N/A
Tiwi Islands NT Airborne magnetic & radiometric 30% N/A north-south 400 m 80 m Survey covers parts of the Bathurst Island, Melville Island and Darwin 1:250 000 map sheets

For further information, please email Murray Richardson, or phone +61 (0)2 6249 9229.

7. 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