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March 12, 2013
On Tuesday March 26, 2013 the TGDG will host a selection of speakers for a mini-symposium at Hart House on ‘Laterites or Laterwrongs: Making the Pieces Fit’. Speakers include Ravi Anand (CSIRO), Peter Winterbourne (Vale), and Ron Schonewille (Xstrata)...
March 11, 2013
Hailing from industry, government and academia, high profile Australian and internationally-based researchers will join the CET fortnightly to share their experience on a wide variety of geoscience topics.These seminars are FREE and all interested Geologists are welcome to attend...
February 25, 2013Is regulation robbing exploration properties of their worth?
You can’t get chickens if you don’t allow the eggs to develop. Joe Hinzer, president of geological consulting firm Watts, Griffiths and McOuat (WGM), uses this analogy to illustrate how many early-stage exploration projects are being stifled by current mineral valuation regulations before they have a shot at becoming mines...
February 04, 2013
It has been a busy 24 hours as the Association for Mineral Exploration British Columbia (AME BC) kicked off its Mineral Exploration Roundup 2013...
January 29, 2013Where do I meet the geologists of Africa?
Africa is more than 20 per cent of the world’s land area, is home to 15 per cent of human population but still earns its label as the Dark Continent through generating only 2 per cent of the world’s electricity. Where can you find the geologists exploring this sleeping giant with its inevitable future in the resources sector?
January 28, 2013
As exploration programs focus on remote and concealed targets, the ability to recognize large ore-forming systems – from the most distal margins to high-grade cores – becomes increasingly important. Efforts are therefore under way to generate sophisticated “footprint” or “signature” models of high-value deposits.
December 2, 2012
The December 4th Greenland Day, taking place in Perth, will feature industry and geoscience experts from across the globe, discussing Greenland’s burgeoning exploration opportunities and recent research advances...
November 1, 2012
Some of the sector's leading minds will be looking into their crystal balls on November 8th, trying to summon a picture of what the future might hold for exploration and mining in Canada...
September 11, 2012
Brazilian state-run energy giant Petroleo Brasileiro, or Petrobras, said Tuesday that it had started oil production at the Baleia Azul presalt field in the offshore Campos Basin...
September 11, 2012
Barrick Gold CEO Jamie Sokalsky speaks with Carl Quintanilla on CNBC about Barrick's strategy to drive shareholder value...
September 10, 2012
The tie between energy supply, population, and the economy goes back to the hunter-gatherer period...
July 12, 2012
A massive two thirds of Western Australia remains unexplored for minerals and geologists say the territory presents huge potential...
July 12, 2012
Shale and other unconventional resources are being called the biggest game changer in a generation - and as land and other costs escalate, the industry continues to apply lessons gleaned from the early successes...
July 11, 2012
In this exclusive interview with Professor David Thiel, Director at the Centre for Wireless Monitoring and Applications at Griffith University, he discusses how electromagnetic geophysics can help those who are conducting a feasibility study and opens up on the real cost benefits of this technology...
July 11, 2012
Improved security has started to open up new areas for mineral exploration in Latin America....
on May 2, 2012 Library
Geological use of high-resolution satellite ASTER geoscience maps may help in the hunt for mineral resources in South Australia.
ASTER (an acronym for Advanced Spaceborne Thermal Emission and Reflection Radiometer) is a Japanese sensor which is one of five remote sensory devices on board the Terra satellite launched by NASA in 1999, since which time data collection has been ongoing. The latest ASTER geoscience imagery was released by the South Australian government and is available free to explorers.
The new release is a co-operative effort between the Centre of Excellence for 3D Mineral Mapping, the Minerals Down Under flagship of CSIRO, Geoscience Australia, NASA, and the Japanese government.
The web-accessible ASTER geoscience map of SA is a set of digital geoscience products generated from satellite ASTER data. It’s made possible by advances in collecting and processing information from satellites using the latest in remote-sensing imaging capabilities after the older Landsat Thematic Mapper. ASTER technology captures high spatial resolution data in 14 bands, from the visible to the thermal infrared wavelengths, and provides stereo viewing capability for digital elevation model creation.
The end result is a level of accuracy and detail never before seen in South Australia, says Dr. Tim Baker, director of the state’s Geological Survey.
Baker told the Adelaide Now newspaper that "ASTER maps provide a Google-like ‘mineral zoom’ of the cover overlying geological formations, aiding explorers in the search for economic mineral deposits.
“This processing technology means explorers can now see spectral wavelengths sensitive to important rock-forming minerals including iron oxides, clays, carbonates, quartz, and alteration minerals such as muscovite and chlorite,” he said.
The information gleaned will both help exploration companies plan their drilling programs and complement the state’s archive of drill core data. More specifically, the information will aid in the accurate mapping of the regolith cover that blankets much of Australia. As a result, those often small islands of bedrock materials will be easier to locate.
ASTER shortwave infrared bands are especially useful in mapping clastic and carbonate stratigraphy and volcanic environments and are also effective in predicting mineral groups and specific minerals such as kaolinite, alunite, illite, muscovite, montmorillonite, chlorite, calcite, dolomite and serpentine.
The ASTER map of South Australian is the second installment of an Australian ASTER geoscience map that is being developed in co-operation with the other State and Territory surveys and Geoscience Australia. A national map is scheduled for release at the 34th International Geological Congress in Brisbane in August, 2012. Both maps are being generated through Western Australia’s Centre of Excellence for 3D Mineral Mapping. Later updates of this map may include improved removal of complicating vegetation effects and products derived from thermal infrared.
Explorers can view the ASTER maps on SARIG 2020, the South Australian Resource information Geoserver. Go to www.sarig.dmitre.sa.gov.au and select the regional mineral map tab. Google chrome is the recommended browser.