1. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 Mineral System Studies at the GSNSW Phil Blevin

2. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 Mineral System Group – MinSysNSW Within Minerals and Land Use Assessment Program Chief Geo Minerals, includes MinSys, HyLogger, Mineral Exploration Assessment Recruitment for 3 senior geoscientists: Metallogenic Mapping, Spectral and Western Division, two MinSys juniors, another MEA junior and NVCL technical. Ongoing sustainable funded program. Mineral Systems message infused into the rest of Survey. MinSys NSW

3. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 GOALS: A time-space-process plot of mineralisation events. Identify sources of fluids, magmas and metals; transport mechanisms; depo sites and the drivers for mineralisation processes. Identify new and overlooked opportunities for explorers. Inform land use decision, resource lands. Add to existing MetIndEx database by providing additional details on the age, style and extent of individual mineral systems (points to polygons). Commence 2 nd generation metallogenic mapping. MinSys NSW

4. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 Integrates source(s) with magma and fluid types, Recognises that multiple inputs may occur, Allows for systems that evolve over time, Allows for local and other descriptive, classifications to be integrated into a mineral system model, Bring order to 29,000 mineral occurrences – arranging into camps etc.

5. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013

6. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 Metallogenic studies Statewide –Statewide metallogenic map, deposit classification, deposit models. –Framework studies Metals in Time → time space plot Nd basement map Regional Syntheses –Nymagee –New England Mineral system scale studies Strategic & on-going –Exploration highlights, advice etc. –Commodities (REE, U, Sn). –HyLogger Bathurst Metallogenic – 1972 Mines&Wines 2013 Put in place datasets that will be required for the 2 nd generation metallogenic mapping

7. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 Lot of life left in the brownfields

8. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 Re–Os dating Trundle, Lake Cowal, Copper Hill Ardlethan, Taronga, Tyringham Cassiterite U-Pb dating Tullebung Ardlethan Euriowie – Broken Hill New England Ar–Ar dating Uralla Blackfellows Dam, Hera, Nymagee Seven Hills Tyringham Placing mineralisation events in NSW in their regional and tectonic context. Metals in Time SHRIMP U-Pb dating Nymagee region volcanics and intrusions New England Mount Poole Ardlethan Assessment of arsenopyrite Re-Os

9. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 Time-space plot for metallogenic events

10. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 SHRIMP Dates NEO Kingsgate Oban River Red Range Mount Jonblee Gilgai Parlour Mtn 100 km

11. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 SHRIMP & CA-IDTIMS Dating – New England: Age Range Of Late Permian Magmatism Parlour Mtn RFDS Gwydir R. WVG SthWVG Nth Dundee

12. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 National Nd Map of Australia Mapping the basement evolution of Australia. Courtesy David Champion, GA 115 new analyses

13. Δ Ox (plutons) >0.8 0.3 - 0.8 0.1 - 0.3 -0.1 - 0.1 -0.7 - -0.1 < -0.7 K/Rb (plutons) >400 250 - 400 200 - 250 150 - 200 100 - 150 33 - 100 Cu-Au; Cu-Mo Cu delOx = log10(Fe2O3/FeO) + 0.3 + 0.03*FeOT

14. Δ Ox (plutons) >0.8 0.3 - 0.8 0.1 - 0.3 -0.1 - 0.1 -0.7 - -0.1 < -0.7 K/Rb (plutons) >400 250 - 400 200 - 250 150 - 200 100 - 150 33 - 100 Sn, Mo, W Sn Mo Mo, Sn delOx = log10(Fe2O3/FeO) + 0.3 = 0.03*FeOT

15. K/Rb (plutons) >400 250 - 400 200 - 250 150 - 200 100 - 150 33 - 100

16. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 Pb & S - isotope study Work in progress 200+ new analyses compiled historic data (+110 analyses) but need data for granites/volcanics Mt Hope Wonawinta Bobedah Iron Duke Restdown etc Preliminary results  Significant variation between unit/setting and deposit types.  Input from magmatic reservoirs into deposits more common than previously assumed. Correlation with Au?  Some exploration models appear to be wrong, eg. assumed magmatic input is not evident.

17. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 ~20 drill holes HyLogged to date Data analysis has commenced Scanning is helping to identify samples for further studies e.g. dating isotope etc HyLogger

18. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 GeoFizz Continuation of airborne & reprocessing of older noisy data. Teleseismic (Musgrave/RSES) Close spaced gravity – Wagga Belt Airborne EM – resisting urge to do U, better options include: –Palaeochannels –Porphyry Cu-Au –Orogenic BM (Cobar)

19. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 Gravity Survey 11,000 stations

20. Mineral studies at GSNSWSMEDG 04/12 Mineral Systems Workshop 2-3 July, 2013 Technique developed by CSIRO 100 samples collected Analysis underway Dave Gray Nathan Reid Kyle Hughes Paul Parker Collingullie Granite: Very High U Also Mo, Li, (Sc) Low Rb, K

21. Ordovician System – preservation (Oh, and what is it) Mantle sourced Med-high-K and shoshonites Porphyry dominant Fertile for Cu-Au and Au Whole rock geochem locs 200 km Source: D. Cooke, CODES

22. 2-3 July, 2013 5 km Zonation Mole Granite – NEO, Australia Roof rocks lost except for small pendant. Huge F hard rock resource in pendant – what has been lost? Sn vein deposits in granite generally small Sn shed into placers Options for larger deposits off the shoulders and buried cupolas and ridges