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NORTHERN TERRITORY GEOLOGICAL SURVEY Accessing Australia’s Final Exploration Frontier AGES 2006 Record of Abstracts 28-29 March, Alice Springs Convention Centre Incorporating the 2006 Mining Services Expo Hosted by the NT Geological Survey, Department of Primary Industry, Fisheries and Mines Supported by Mining and Petroleum Services, Department of Business, Economic and Regional Development Annual Geoscience Exploration Seminar www.minerals.nt.gov/ntgs RECORD 2006-002 Hanson Training Services (Australia) Pty Ltd is an Australian Registered Training Organisation (RTO) which delivers accredited training and assessment in a range of subjects such as business, IT, driver training (cars and trucks) as well as Senior First Aid, OHS and heavy equipment. Through our training partners we are also able to organise mining specific training such as Search and Rescue and OHS. Recent international training experience in a mining environment, together with the ethos of superior customer service makes HTS a training provider of choice in Australia; and international recognition is certainly gaining strength as our reputation grows. Ph: (08) 8953 3966 Fax: (08) 8953 3639 Freecall: 1800 287 838 Email: [email protected] 18 Warburton Street, Old East Side, Alice Springs NT 0870 www.hansontrainingservices.com.au CONTENTS Minister’s AGES 2006 foreword __________________________________________________________________________________________________________________________________________________________________________________________ 2 Program of events ________________________________________________________________________________________________________________________________________________________________________________________________________________________ 4-5 Review of the geology and mineral resources of the Ngalia Basin Christine Edgoose ___________________________________________________________________________________________________________________________________________________________________________________________________________________________ 6 The Arunta Region: Links between tectonics and mineralisation Ian Scrimgeour __________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 7 Industry information services Tracey Rogers ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 11 NT mineral exploration overview 2005 John Dunster ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 12 Geophysical models of the Tennant Region Michael Roach ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 17 New insights into the Jervois mineral field Max Frater ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 18 Southeastern Arunta Region: Subdivision and undercover disposition Dorothy Close, Mark Duffett, Ian Scrimgeour, Kurt Worden and Ben Goscombe _________________________________________________________________________________________ 20 The Tanami Deep Seismic Reflection Experiment: 2006 preliminary results Leon Vandenberg, Bruce Goleby, Leonie Jones, Leon Bagas, David Huston, Andrew Crispe, Patrick Lyons, Wade Johnston, Tim Smith and Tim Barton ____________________________________________________________________________________________________ 22 Results of recent stratigraphic drilling in the southwestern Amadeus Basin and implications for petroleum and minerals exploration Greg Ambrose ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 26 Northern Territory regolith project: A successful completion Mike Craig ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 29 New geochronological data from the Tennant Region David Maidment, Lex Lambeck, David Huston and Nigel Donnellan ___________________________________________________________________________________________________________________ 32 Trends in lead isotopes across northern Australia David Huston, Kelvin Hussey, Max Frater and Leon Bagas ______________________________________________________________________________________________________________________________________ 7 3 Western Pine Creek Orogen (Litchfield Province) – recent advances and regional correlations Chris Carson, Ian Scrimgeour, Adrian Goldberg, Richard Stern and Kurt Worden ______________________________________________________________________________________ 37 Vein related mineralisation in the western part of the Pine Creek Orogen Andrew Wygralak and Terry Mernagh __________________________________________________________________________________________________________________________________________________________________________________ 42 List of authors and key contact addresses _________________________________________________________________________________________________________________________________________________________________ 44 Exhibitor list _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 45 Editor’s note: Names of 1:250 000 and 1:100 000 mapsheets are shown in large and small capital letters respectively, eg HAY RIVER, FLYNN. www.minerals.nt.gov/ntgs 2006 AGES Record of Abstracts Minister’s AGES 2006 foreword Welcome to the Northern Territory, and to the seventh successive AGES, our Annual Geoscience Exploration Seminar! The minerals and energy sector is far and away the major contributor to the economy of the Northern Territory, in accounting for over 20% of GSP in 2004–05, the second largest proportion of any jurisdiction in Australia. It plays a fundamental role in regional development and has enormous potential for supporting the commercial and social development of Indigenous and other communities. The Territory Government recognises that exploration is the lifeblood of the sector, and that discovery success will help underpin the future prosperity of all Territorians. The Territory is a remote, highly prospective region with an immature exploration history. Our geological environment presents unique technical challenges that make the discovery of new resources difficult. The Territory Government has, since 2003, established a holistic approach to exploration investment attraction through our innovative $15.2 million Building the Territory’s THE HON. KON VATSKALIS Resource Base program. The primary thrust of this program is to assist in mitigating the technical Minister for Mines and Energy risk associated with mineral and petroleum exploration. AGES is used by my Department of Primary Industry, Fisheries and Mines as a key platform to communicate the results and significance of its comprehensive geoscience program. In recent years, this event has been enhanced by incorporating special sessions to discuss and explore Indigenous involvement in exploration and mining. AGES will again be broadened in 2006 by cross-agency cooperation with the Department of Business, Economic and Regional Development, by hosting a Mining Services Expo. This will showcase a number of central Australian businesses and their capabilities to support mining and exploration activity. In the current resources boom, we find ourselves in an increasingly competitive environment and our challenge is to succeed at differentiating the Territory as a superior investment destination from other prospective jurisdictions in Australia and, indeed, across the world. AGES remains an important part of our strategy to achieve this. I trust that you will enjoy AGES 2006 and all that central Australia has to offer! DEPARTMENT OF PRIMARY INDUSTRY, FISHERIES AND MINES MINISTER: Hon Kon Vatskalis, MLA CHIEF EXECUTIVE: John Carroll NORTHERN TERRITORY GEOLOGICAL SURVEY DIRECTOR: Richard Brescianini BIBLIOGRAPHIC REFERENCE: Northern Territory Geological Survey, 2006. Annual Geoscience Exploration Seminar (AGES) 2006. Record of abstracts. Northern Territory Geological Survey, Record 2006-002. (Record / Northern Territory Geological Survey ISSN 1443-1149) Bibliography ISBN 0 7245 7104 3 EDITORS: TJ Munson and IR Scrimgeour Northern Territory Geological Survey 3rd floor Paspalis Centrepoint Building Arid Zone Research Institute Smith Street Mall, Darwin South Stuart Highway, Alice Springs GPO Box 3000 GPO Box 8760 Darwin NT 0801, Australia Alice Springs NT 0871, Australia For further information contact: Minerals