NEWS and COMMENTARY Mineral Exploration Crcs Close Garnaut
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AUGUST 2008 • ISSUE 135 ABN 71 000 876 040 ISSN 1443-2471 PREVIEW AUSTRALIAN SOCIETY OF EXPLORATION GEOPHYSICISTS NEWS AND COMMENTARY FEATURE ARTICLES Mineral exploration CRCs close Australian Gold Garnaut and Wong on Climate Change • Why we hunt for gold New members on FedEx • Where we hunt for gold ASEG’s fi nances • How we hunt for gold Downhole EM, MMR Surveys Surface EM, MMR Surveys • Atlantis B-fi eld probe, 33mm diameter • High power transmitter system • Measure 3 components in a single pass • 2000m winch available • High power transmitter system VORTEX GEOPHYSICS www.vortexgeophysics.com.au Contact: Allan Perry, Manager Phone (08) 9291 7733 Fax (08) 9291 7737 8 Hart Street, Lesmurdie, Western Australia 6076 Email: [email protected] Absolute Geophysics SAMSON - a low noise TEM system for Modeling, Presentation and Visualisation highly conductive targets of Electrical Geophysical data SAMSON is a total field EM system The advantages of SAMSON over other systems include: EMIT’s Maxwell EM Software - the industry- • Low noise data acquisition at low frequency— standard software for processing, visualisation better penetration in conductive terrain and better and interpretation of any type of EM geophysical data - ground, airborne, borehole, time and discrimination of highly conductive targets. • Station setup and occupation time is low. frequency domain. • In-built navigation. EMIT is the distributor of the • Total field EM responses are easily modeled with W NE Australian CSIRO / AMIRA EMIT’s Maxwell software. Advanced EM Modeling Algorithms • Moving loop or fixed loop configurations. The Australian CSIRO has been developing Advanced EM Geophysical Modeling algorithms for approximately Total Field EM Profile (Logarithmic) 25 years as part of an AMIRA project. Maxwell provides a user friendly interface from which to execute these algorithms for forward and inverse modeling. Maxwell allows the user to define, display and edit model parameters through drag-and-drop mouse operation. Layered earth, thin-sheet, plate, prism and mesh models can be built in Maxwell’s 3-D visualisation environment. Grendl, Beowulf & AirBeo for layered earth Total Field EM Profile (Linear) Leroi & LeroiAir for plates in layered earth Marco & MarcoAir for prisms in layered earth Decay Curve Arjuna & ArjunAir for 2D mesh with topography Loki & LokiAir for 3D mesh with topography Samaya & SamAir for 3D mesh with topography within a uniform halfspace Time constant >500msec Stn:7750mE Fixed Loop Total Field EM at Wedgetail nickel deposit, Western Australia. Absolute Geophysics Pty Ltd is a Joint Venture between two of Australia’s foremost geophysical instrument developers to provide SAMSON services — ElectroMagnetic Imaging Technology Pty Ltd and Gap Geophysics Pty Ltd. www.electromag.com.au For further info on Maxwell, the new CSIRO modules or other EMIT products contact us at Total Field EM surveys 6 / 9 The Avenue, Midland WA 6056 AUSTRALIA p: (+61 8) 9250 8100 f: (+61 8) 9250 7100 6 / 9 The Avenue www.absolutegeo.com.au p: (+61 8) 9250 8100 e: [email protected] Midland WA 6056 [email protected] f: (+61 8) 9250 7100 AUSTRALIA PREVIEW ADVERTISERSADVERTISERS INDEX CONTENTS Archimedes Financial PlanningPlanning. 142 ASEG Student Sponsorships 4 Editor’s Desk 2 Baigent GeosciencesBiosciences . .......235 CSIROEMIT. .Recruitment . ..................OBC40 ASEG News DaishatEncom . ................3944 ASEG News 2 DownholeFlagstaff . .Surveys . ..............392 President’s Piece DownholeFugro Instruments Surveys . ......353 Executive Brief 4 EMIT IBC, OBC 3 Geoimage (Max Bye) . .......6 Executive Brief Flagstaff Geoconsultants 6 People 6 FugroGeoimage Instruments (Sylvia Michael) . ..639 4 GapGeokinetics Geophysics . .............27 BranchPeople News 9 GeoimageGeophysical (Max Software Bye) Solutions . 319 6 GeoimageIMT Geophysics (Sylvia . 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Petroleum: Mick Micenko Email: [email protected] Image courtesy of NSW Publisher Department of Primary Petrophysics: Don Emerson CSIRO PUBISHINGPUBLISHING Industries. Email: [email protected] Minerals: Peter Fullagar Production Editor Email: [email protected] Lauren Webb NEWS AND COMMENTARY FEATURE ARTICLES Mineral exploration CRCs close Australian Gold Tel:Tel.: (03) (03) 9662 9662 7559 7559 Garnaut and Wong on Climate Change • Why we hunt for gold Book Reviews: David Robinson New members on FedEx • Where we hunt for gold ASEG’s fi nances • How we hunt for gold Email: [email protected] Email: [email protected] Web Waves: Andrew Long Advertising Email: [email protected] Preview is available online at:at Elspeth Gardner www.publish.csiro.au/journals/pv Geophysical History: Doug Morrison Tel:Tel.: (03) (03) 9662 9662 7668 7668 ISSN: 1443-2471 eISSN: 1836-084X Email: [email protected] Email: [email protected] PV13501-page-02 8/7/08 10:22 Page 2 Editor’s Desk Climate Change based trade scheme. He included transport but not agriculture at this stage. His Climate Change has dominated the argument for Australia acting now rather political landscape in Canberra this month than later to address carbon emissions was – only the Pope with his fleeting visit to straightforward. (1) Controlling climate Sydney was able to push this issue from change and life on Earth is a global the front pages for a few days. problem. (2) The main emitters/polluters are China and the US and Australia’s As Ross Garnaut said in his speech at the emissions are trivial compared with those. National Press Club: ‘Climate change is a (3) However, Australia’s per capita diabolical policy problem. It is harder than emissions are the highest in the OECD and any other issue of high importance that has it is therefore unreasonable to continue come before our polity in living memory’. generating CO2 limitlessly while expecting And I haven’t heard anybody argue with that. China and the US not to reduce their emissions. So what did he report? Well, he produced David Denham a well reasoned 537 page report covering He made a big plug for a huge increase in the whole spectrum of Climate Change basic research and development of and the economic consequences. He low-emissions technologies, and argued Australia’s gold endowment argued persuasively for a cap and broadly that this is an international public good, Gold has played a crucial role