mining
Lincoln Minerals Limited is an Australian company with a portfolio of quality iron ore, nickel-cobalt, uranium, lead-zinc-copper-silver and gold projects in Indonesia and the highly prospective Gawler Craton in South Australia.
In Indonesia, Lincoln Minerals is jointly developing a small but high grade iron ore mine with target production in excess of 250,000 tpa at 63-68 percent Fe.
The Company has secure land positions, with projects close to established infrastructure, including rail and heavy haulage road networks, shipping ports, electricity networks and water services.
  Projects - Cockabidnie    
 

    Cockabidnie - Campoona Nickel Discovery

  • Lincoln Minerals has discovered lateritic nickel mineralisation in the Campoona Syncline within the Company’s Cockabidnie Project.

  • Mineralisation up to 0.7% Ni + 0.05% Co occurs at a depth of about 15-20m beneath shallow cover and overlies gabbroic amphibolite with up to 0.1% Ni in fresh bedrock. The aeromagnetic and calcrete anomalies associated with mineralisation extend over a strike length of 5km.

  • The Cockabidnie area has been the focus of base metal, gold and uranium exploration sporadically since the late 1960’s. It has potential for unconformity uranium mineralisation associated with the base of the Mesoproterozoic Blue Range Beds base metal, gold and iron ore mineralisation associated with the BIF-marble-calcsilicate sequence extending south and southwest from the Stanley Mine and nickel-cobalt mineralisation associated with mafic volcanics or intrusives in the BIF sequence.

  • Previous exploration centred on the Campoona Syncline where there are high background base metal geochemcial (up to 1% Zn and 0.9% Pb in outcrop samples) and Sirotem anomalies associated with BIFs. Previous drilling 5km ENE of Cockabidnie Corner intersected intervals up to 5m @ 1.14% Zn and 0.11% Pb while more recent drilling by Lincoln Minerals intersected 18m @ 0.8% Zn+Pb and 2.17g/t Ag including 2m @ 2.4% Zn+Pb and 3.34g/t Ag.

  • Previous exploration also identified scattered surface outcrop uranium anomalies up to 0.075% U and a 10 x background gas-in-soil radon anomaly 1.5km north-northeast of Cockabidnie Corner with coincident uranium in borehole water and hematite alteration in both the Mesoproterozoic cover and underlying graphitic schist basement.

  • Lincoln Minerals’ drilling results include zones of elevated uranium up to 81ppm U below calcrete soil uranium anomalies. The elevated uranium occurs in basement rocks that were originally not far below a Mesoproterozoic unconformity analogous to Alligator River style uranium mineralisation in the Northern Territory.

  • Surface geochemical calcrete gold anomalies (>10ppb Au and up to 272ppb Au) occur southwest of Sugarloaf Hill Mine and in the Campoona Syncline. There are >100ppm Cu, >100ppm Zn and >50ppm Ni anomalies coincident with the calcrete gold anomalies.

  • The proposed exploration program for the Cockabidnie area will focus on the Campoona nickel discovery along with ongoing exploration of potential unconformity uranium mineralisation, gold and base metals particularly in the Campoona Syncline and southwest of Sugarloaf Hill.

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