Sareic ferris
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The document summarizes PIRSA's role in geological mapping and promoting sustainable communities in the APY Lands. It discusses mapping of the Musgrave Province to understand the tectonic history and assist mineral explorers. The outcomes will be marketable GIS datasets, ranking regions by prospectivity, new exploration models, and increased exploration expenditure in the Musgrave Province. It also outlines plans for an agreement enabling mineral exploration, cultural awareness training, and granting exploration licenses to mining companies in the APY Lands.
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Sareic ferris
- 1. APY Lands Program ‘Making Inroads into the Musgrave Province’ MUSGRAVE TEAM MINERAL RESOURCES DIVISION PIRSA EXIT
- 2. PIRSA’S ROLE IN THE APY LANDS 1. Geological mapping 2. Promote sustainable communities via mining (PACE)
- 4. Mapping Outcomes Felsic Granulites Pitjantjatjara Granite Giles Complex Complex Dyke Systems
- 5. 662500 662500 665000 665000 667500 667500 670000 670000 672500 672500 7075000 7075000 7077500 7077500 7080000 7080000 7082500 7082500 ± 0 1 20.5 Kilometers “Dyke Hill” Olivine-Gabbros Pentlandite sample
- 6. R659069 _____ 0.09 mm Pentlandite Chalcopyrite Pyrite Pyrrhotite Sulphide sample from “Dyke Hill”
- 7. Mapping Summary • Layered mafic/ultramafic Giles Complex with rare Ni sulphides • Giles Complex related dyke systems with evidence of contamination • Deformed granulite facies Pitjantjatjara Suite Granite. Previously mapped as Birksgate Gneiss
- 8. Deciphering the tectonic history of the Musgrave Province to assist mineral explorers and regional synthesis programs
- 9. • ~$550K over 4 years • 6 University researchers • 10 postgraduate students • MRG personnel Musgrave Province — Tectonic Framework
- 10. GEOPHYSICAL ANALYSIS OF CRUSTAL-SCALE STRUCTURES GEOPHYSICAL ANALYSIS OF CRUSTAL-SCALE STRUCTURES GEOCHEMICAL AND ISOTOPIC CHARACTERISATION OF DOMAINS WITHIN THE PROVINCE GEOCHEMICAL AND ISOTOPIC CHARACTERISATION OF DOMAINS WITHIN THE PROVINCE TECTONOTHERMAL HISTORIES OF DOMAINS WITHIN THE PROVINCE TECTONOTHERMAL HISTORIES OF DOMAINS WITHIN THE PROVINCE GEOCHRONOLOGICAL CONSTRAINTS GEOCHRONOLOGICAL CONSTRAINTS TECTONIC TIMESLICE MODELSTECTONIC TIMESLICE MODELS Generalised flow chart for the development of the Musgrave Province tectonic framework Generalised flow chart for the development of the Musgrave Province tectonic framework TECTONIC EVOLUTION OF THE MUSGRAVE PROVINCE TECTONIC EVOLUTION OF THE MUSGRAVE PROVINCE MINERAL SYSTEMS ANALYSIS MINERAL SYSTEMS ANALYSIS REGOLITH ANALYSISREGOLITH ANALYSIS Musgrave Province — Tectonic Framework
- 11. Curnamona Province: Tectonic evolution and isotopic constraints on Cu-Au mineralisation Curnamona Province: Tectonic evolution and isotopic constraints on Cu-Au mineralisation Syntheses of the Southern Australian Proterozoic and effective tectonic frameworks for mineral exploration Syntheses of the Southern Australian Proterozoic and effective tectonic frameworks for mineral exploration Tectonic evolution of the Musgrave Block Tectonic evolution of the Musgrave Block Gawler Craton: Tectonic evolution and frameworks for exploration Gawler Craton: Tectonic evolution and frameworks for exploration Geophysical constraints on structural geometry and evolution Geophysical constraints on structural geometry and evolution Provenance constraints on the origin of metasedimentary units and timing and tectonothermal evolution of orogenic events Provenance constraints on the origin of metasedimentary units and timing and tectonothermal evolution of orogenic events Geochemical and isotopic characterisation of igneous rock suites Geochemical and isotopic characterisation of igneous rock suites Lithospheric mantle evolution and prospectivity of mafic rock systems Lithospheric mantle evolution and prospectivity of mafic rock systems Geophysical constraints on lithospheric-scale architecture of the Musgrave Block and its boundaries Geophysical constraints on lithospheric-scale architecture of the Musgrave Block and its boundaries Musgrave Province — Tectonic Framework
- 12. Musgrave Province — Tectonic Framework The outcomes will be: (1) Marketable GIS datasets (2) Ranking of different regions in the Province (3) New conceptual exploration models for the Musgrave Province (4) An increase in mineral exploration expenditure for the Musgrave Province
- 13. Theme 5 Resource Development and Sustainable Communities • $2.55 million over 5 years • $2.15 million for Economic Development • $0.4 million for TAFE training
- 14. Current Exploration Licences – APY Lands
- 15. Key Objectives • Increase mineral and petroleum exploration within APY Lands by providing a clear process, which benefits all parties • Protection of sacred sites for all time • The Development part of APYLC become mostly self-funding via increased business opportunities including mineral exploration, tourism and grazing • Anangu Law and Culture will be continually supported and funded accordingly as the social and cultural advocate organisation for the Anangu Senior Men and Women across the APY Lands
- 16. Proposed milestones 2004–2005 1. December 2004 – Deed of Agreement which cover mineral exploration produced and accepted by all Parties (APYLC, Minerals Industry) 2. December 2004 – First phase GIS developed and installed at Umuwa 3. November 2004 – Cultural awareness program established – (next year) 4. June 2005 – Granting of 3 Exploration Licences to Pepinnini Mining Company and 3 EL’s to Rio Tinto Exploration Pty Ltd 5. September-October 2005 – Mining Open Day
- 17. Kimberley Field Trip Participants Gary Lewis Former Chairperson APY Land Council Rex Tjami Director APY Executive Punch Thompson APY Executive Murray George Chairperson TAPY L and C Muyuru O’Toole Executive Member TAPY L and C Langaliki Lennon Executive Member TAPY L and C Adrian Intjalki Executive Member TAPY L and C Bronwyn Hodgson Coordinator TAPY L and C Gary Ferris Musgrave Program Leader PIRSA John Mignone Educational Officer PIRSA Rob Larkins Aboriginal Liaison Officer PIRSA Ian Hopton Environmental Officer, PIRSA Lyn Broadbridge Technical Officer, PIRSA
- 18. Kimberley Field Trip Group at Devils Marbles Welcome to country ceremony Argyle Diamond Mine Anangu with representatives from Kimberley Aboriginal Law and Culture Corporation Open cut pit – Argyle Mine
- 19. Rehabilitation of Chrysoprase pit – Pipalyatjara PIRSA/Spencer TAFE
- 20. APY and Maralinga Rio Tinto Indigenous Challenge Cup May 21 AAMI Stadium Curtain Raiser to Port Power v Essendon Sponsored by Rio Tinto and PIRSA APY Representative Team –Indigenous Football Carnival 2004
Editor's Notes
- Summary location plan showing the main mapping areas of 2004. The four yellow areas are parts of the same same EL T2423 which was relinquished by Delta Gold/Rio Tinto in late 2003. These areas were taken out as a holding lease by PIRSA while mapping and sampling are undertaken to further define their prospectivity. These areas are centrally situated in the Musgrave Province and fall within/around a fault bounded triangular block south of the Mann Fault. This talk will focus on two areas where the most interesting geological results were discovered. These are East Deering Hills and Mt Caroline.
- The first area that was mapped in detail was the East Deering Hills. Over the course of two mapping campaigns, the area covered extended outside the original EL extents. This was due to the very good relationship PIRSA employees were able to build with the traditional owners of these areas. In order to familiarise ourselves with the general geology of the Musgraves, as all the mapping team were new to this area, the initial program of mapping concentrated on 1:10 000 scale detailed mapping. This slide shows the areas mapped and the preliminary geological maps produced for these areas. The area had originally been mapped as two small intrusions of Giles Complex (blue colours) surrounded by extensive areas of Birksgate Gneiss. This gneiss was found to be deformed Pitjantjatjara Supersuite charnockite (orange) with a few small rafts of Birksgate Gneiss (khaki). The Giles Complex consisted mainly of gabbros (light blue) with some minor pyroxenite (dark blue) layers. An extensive network of gabbroic dykes was found to cross-cutt the charnockite and gneiss.
- This shows the preliminary map for the Mt Caroline area. Unfortunately the outcrop in this area was more limited but the detailed observations are more interesting. The Giles Complex in this area differed from that in the East Deering Hills in that there are olivine-gabbros in the cumulate pyroxenite-gabbro sequence. The most economically interesting feature is this “Dyke Hill”, which contained several fragments of gabbro with disseminated and massive pentlandite-chalcopyrite mineralisation. The overall Ni content of the surrounding host was 400ppm suggesting the sulphides were transported from elsewhere in the magmatic system.
- A photomicrograph shows the primary magmatic sulphides present in the sample from the Mt Caroline area. The largest pentlandite/magnetite grain reached a diameter of 3mm. This occurrence is an excellent indicator that the Giles complex has reached sulphur saturation and potentially precipitated economic concentrations of Ni/Cu sulphides somewhere in the magmatic system.