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South Australia Naturally Rich with Opportunity

By Department for Energy and Mining, South Australia

byThe Assay
4 years ago
Reading Time: 8 mins read
South Australia Naturally Rich with Opportunity

South Australia covers almost one million square kilometres and has a proven pedigree in mining and exporting resources to 30 countries worldwide. Results of new geophysical surveys confirm frontier areas are prospective for a diversity of mineral commodities.

South Australia has a diverse and resilient mineral resources sector headlined by decades of production of copper, gold, silver, zinc, iron ore, uranium, and more recently heavy mineral sands. World-class mineral assets, policy leadership and well-managed mining businesses contribute to South Australia’s international appeal as an attractive investment destination. South Australia hosts the majority of Australia’s copper (66%), uranium (79%) and graphite (66%) resources. Significant gold, silver, zircon and iron ore deposits have been identified as well as a suite of industrial minerals used in high-tech and renewable energy industries and construction materials. Growing global interest in battery storage to support renewable energy technology and transport alternatives to diesel power are pulling forward demand for copper and specialist minerals. South Australia has attractive cobalt and graphite prospects and green field provinces that are highly prospective for nickel deposits. Tremendous opportunities exist to unlock 16 billion tonnes of iron ore assets with magnetite producers and project developers working toward a long-term objective of making South Australia a leading global suppliers of quality magnetite products for steelmaking. Thirty developing projects, many already initiating pre-feasibility and definitive feasibility studies, offer opportunities for co-investment across a range of commodities (See fig.1).

 

South Australia Naturally Rich with Opportunity
South Australia’s rich and diverse mineral endowment offers an excellent growth span for future investment.

Advanced projects have secured mining leases and can be further progressed with suitable investment partners. While renowned for its long-life quality assets, new precompetitive geoscience data releases highlight that South Australia remains relatively under explored.

 

Growth of Mining

For more than a decade, minerals have accounted for a third of South Australia’s exported goods complemented by the State’s agriculture, food and wine exports (see fig.2). Miners operating in South Australia clocked a respectable A$4.42 billion in production value from copper, hematite, magnetite, gold, uranium, silver, lead, zinc and industrial and construction materials in 2017/2018 (see fig.3). Copper is the mainstay – with exports typically accounting for 15-20% of State exports. Production of copper totalled about 261,684 tonnes in 2017 from the Prominent Hill, Olympic Dam and Kanmantoo mines. Major copper mining producers have collectively invested more than a billion through 2017 to expand existing mines and open new mines. South Australia is also home to three major mineral processing facilities. Nyrstar has redeveloped its Port Pirie operations into an advanced multi metal processing and recovery facility. Midway through the first year of a two-year ramp-up, Port Pirie is on track to be one of the world’s largest lead smelting facilities, third largest silver producers and supplier of zinc fume, copper cathode, gold ore and sulphuric acid. UK-based GFG Alliance purchased the Whyalla Steelworks in 2017 as part of an acquisition of the former Arrium assets. With an initial production capacity of 1.2 Mtpa of steel, produced from iron ore deposits in the nearby Middleback Ranges, the company is working through transformation plans to maximise its plant capacity and integrate its Australian assets into GFG’s global operations. Olympic Dam has an onsite integrated smelter and refinery producing high purity copper, gold, silver and uranium concentrate.

South Australia Naturally Rich with Opportunity

South Australia is at the centre of Australia’s road, rail and port logistics, providing time and cost advantages to key markets in China and across Asia. Well-planned supplies of affordable industry land are linked to strategic infrastructure and transport corridors. An advanced manufacturing technology and research base, and world leading companies in the defence, food and wine, resources, information and communications technology sector are supported by excellence in higher education, research, skills and vocational education and training.

 

Uptick in exploration

South Australia’s frontier areas have attracted $55.2 million in exploration across 700 exploration licences held by about 180 companies in 2017-2018. The past year has seen an uptick in exploration. Copper has attracted the largest share of exploration investment and resource upgrades have been lodged across all commodities with standout results in gold, uranium and graphite. Exploration programs have highlighted nickel- copper potential in the Musgrave and Coom-pana provinces. Recent announcements point to opportunities for investment partners:

  • Alliance Resources’ Maiden Mineral Resource Estimate for the Weed-nanna Gold Deposit confirmed a high-grade gold deposit with outstanding economic
  • Renascor Resources continues to prove up its Tier 1 Siviour graphite project into the world’s fifth largest graphite
  • Boss Resources is buoyed by infill drilling results at the Honeymoon uranium mine, confirming large high- grade continuous mineralisation zones close to its existing processing
  • Joint venture partners Red Metal and OZ Minerals have initiated a significant maiden six-hole drill program to test copper-gold targets on the Punt Hill and Pernatty Lagoon
  • Havilah Resources is encouraged by the latent value of copper, cobalt and gold in its Kalkaroo project in the Curnamona Province in the State’s Mid-North region. Encouraging, widespread cobalt mineralisation has also been reported from early stage exploration work at the nearby Mutooroo copper-cobalt deposit
  • Marmota Ltd has announced results of its reconnaissance-drilling program at its CAR prospect, identifying wide-spread gold mineralisation in altered granite, finding anomalous gold mineralisation in the majority of its drill
  • In the Eastern Musgraves, Woomera Exploration is exploring for magmatic nickel-copper sulphide systems that bear similarities to those proved up across the border in
  • Investigator Resources, having identified a conductive magneto-telluric flare at its Maslins target analogous to that of Olympic Dam, is seeking a partner to drill test the prospective anomaly.
  • In a bid to unearth a world class copper-gold resource, Argonaut Resources with JV Aeris  Resources  is in preparations to drill a massive IOCG anomaly with multiple deposit- scale target zones at Lake

Additional 2017 exploration results are catalogued in the Mineral Exploration in South Australia 2017 report and Industry News, available at energymining.sa.gov.au.

 

Expanding footprint – Rich long-life assets develop into mines

Regarded as South Australia’s Copper Belt, the  iron oxide-copper-gold geology in the Gawler Craton is crowned by the world-class Olympic  Dam project, now in its 30th year of production. Olympic Dam has a name plate capacity of 235 000 tonnes of copper a year and it is undergoing an expansion into its Southern Mine Area supported by a major smelter upgrade and investment in surface infrastructure. As a multi-generational mine, Olympic Dam is a powerful indicator of the potential of the Copper Belt. Ranked as the world’s fifth largest copper deposit, the world’s largest uranium deposit with substantial occurrences of gold and silver, geologists are yet to determine the deposit’s limits. The Gawler Craton also hosts the Prominent Hill copper gold mine, which came on line in 2009 and is forecast to continue production until the late 2020s. OZ Minerals’ other significant asset in South Australia, the copper-gold Carrapateena mine, is due to begin production in 2019. Carrapateena is expected to add a potential 65 000 tonnes of copper a year to South Australia’s copper production. Potential lies ahead to further grow nearby copper assets such as the Khamsin project and Freemantle prospect.

 

More to find – inventory gap

High-quality deposits have already been  identified and successfully mined in the Gawler Craton, but a statistical anomaly suggests a substantial discovery gap remains to be filled (see fig.4).

 

South Australia Naturally Rich with Opportunity

The desire to step up the discovery rate and close the inventory gap has spurred the Geological Survey of South Australia to conduct the world’s largest airborne survey. Undertaken across some 320 000 square kilometres – nearly a third of the state – the Gawler Craton Airborne Survey has generated high resolution magnetic, radiometric and digital elevation data, meticulously collected over two years. Knowing the depth of prospective rocks is the first order determinant of exploration. In a value-add for explorers, the Gawler Craton Airborne Survey partnered with CSIRO to use the data to model the depth of hundreds of individual magnetic sources in prospective magnetic basement. A year-long process of disseminating this new information has already begun, saving companies the cost of first-stage modelling and providing greater certainty on the depth of potential economic targets on their tenements. The early results from the Gawler Craton Airborne Survey, together with the national AusLamp Magnetotelluric work, can enhance 3D exploration undercover and point the way to new exploration targets.

 

New search spaces

With high-quality prospects concealed from early explorers by extensive cover, South Australia has focussed on stimulating new green field exploration. The Geological Survey of South Australia joined with national collaborators in a five-year effort to open up the 200,000 km2 Coompana Region, one of the world’s least understood geological provinces. The $8 million effort combined a suite of proven and novel methods to yield stunning new technical insights that reinforce the value of precompetitive data to foster investment in new greenfield exploration. Spurring industry interest has been the identification of geological conditions that are prospective for copper, nickel and platinum group minerals, zones prospective for copper-gold deposits, and hot spots prospective for lucrative specialist metals niobium and tantalum, along with rare earths. The work has shown the depth to basement is not as deep as previously thought, putting the region within the economic reach  of explorers. Detailed studies confirm rock suite units analogous to known prospective areas, including Giles Complex equivalent intrusive rocks that can be prospective for copper, nickel and platinum group elements as known in the Musgrave Province.

South Australia consistently secures high global rankings as a world class mineral  investment  destination.  In the Mining Journal’s 2017 World Risk Report, South Australia ranked in the top 10 internationally as a low-risk investment destination – placed first in Australia and securing an AA score. South Australia continues to stand out as a leader for its quality geological databases, ranking 5th globally in the Fraser Institute Annual Survey of Mining Companies 2017. This continues its top-10 ranking run held for the past 14 years – a reflection of the exceptional quality and quantity of geoscientific data produced by the Geological Survey of South Australia and made available online through the South Australian Resources Information Gateway – SARIG.

 

Rolling out the red carpet for explorers

The new South Australia’s Drill Core Reference Library located within the Tonsley Innovative District embodies the State’s welcoming approach to explorers. Embracing new technologies, the modern asset serves as an irresistible invitation to the world’s best and most active explorers to unlock the economic potential of South Australia’s resources. The flagship facility is an incubator for exploration companies to collaborate and break new ground in better targeting exploration by accessing its vast core drill core and sample collection. They can also take advantage of the latest digital platforms – even bringing to life geological settings in the 3D-immersive theatre. SARIG, the South Australian Resources Information Gateway, is in the world’s top-ten as a digital platform, enhancing explorers’ efforts to find new assets. SARIG’s “big data” now provides more than 600 interactive maps and data views, delivers state’s geoscience information, vast knowledge data banks from previous exploration efforts, as well as vital information on mining and exploration projects, tenement, infrastructure, environment and land access arrangements, and mining resource data. An interactive dashboard showcases the breadth of key commodities and opportunities across the state, which can seamlessly generate a map of corresponding projects and mines. The South Australian Government supports research capabilities and has supported the new Mineral Exploration Cooperative Research Centre – MinExCRC to advance the success of exploration under cover by delivering more productive, safer drilling methods that enable cheaper and faster drilling. A further focus is to bring forward technologies that can readily collect data during drilling programs to aid agile decision-making and further derisk exploration. The new collaboration will build on previous successes such as the launch of the RoXplorer coiled tubing rig.

 

Pathways to invest in exploration

The three principal investment options for entering the South Australian exploration sector are either by direct tenement ownership, joint ventures with companies actively exploring in South Australia or by holding direct shares in Australian exploration companies. The South Australian Government can introduce potential investors to suitable exploration companies or advisors to assist with due diligence and acquisition processes. After an economic discovery, small and mid-tier companies may seek investors  or project partners to provide funding for project development and implementation. The Department  for  Energy  and  Mining can assign a dedicated case manager to significant projects to provide a single point of contact to a company or investor and a coordinated approach to interactions  and  the  assessment  processes.

South Australia has built a formidable exploration and resources development jurisdiction, coming into its own as investors look for stability and strength.

 

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Please note: This Web site and The Assay magazine and the information and materials on this Web site and in The Assay magazine are not, and should not be construed as, an offer to buy or sell, or as a solicitation of an offer to buy or sell, any regulated products, securities or investments. This Web site and The Assay Magazine do not, and should not be construed as acting to, sponsor, advocate, endorse or promote any regulated products, securities or investments. This Web site and The Assay magazine and the information and materials on this Web site and in The Assay magazine do not, and shall not be construed as, making any recommendation or providing any investment or other advice with respect to the purchase, sale or other disposition of any regulated products, securities or investments, including, without limitation, any advice to the effect that any mining or metals related transaction is appropriate or suitable for any investment objective or financial situation of a prospective investor. A decision to invest in any regulated products, securities or investments should not be made in reliance on any of the information or materials on this Web site or in The Assay magazine. Before making any investment decision, prospective investors should seek advice from appropriately qualified and licensed financial, legal, tax and accounting advisers, take into account their individual financial needs and circumstances and carefully consider the risks associated with such investment decision.

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