Lincoln Minerals will soon commence a field reconnaissance program at its Yallunda project in South Australia as it investigates a 7km-long uranium anomaly.
The company used historic geophysical and geochemical datasets to map the anomaly, with airborne radiometric data recently released by the SA Department of Energy and Mines returning readings exceeding 150 parts per million (ppm) uranium equivalent.
Lincoln will conduct soil, calcrete and rock-chip sampling along the 7km trend, with a follow-up geophysical survey to take place after initial results are returned in late November. This will target new prospects identified from initial findings.
The company hopes that by combining historical data sets with new exploration, further uranium potential can be discovered in an underexplored uranium region.
The Yallunda project area, which is south-west of Lincoln’s Eridani project, sits along the Kalinjala shear zone on the eastern margin of the Eyre Peninsula. This region is known for hosting significant magnetite deposits and Lincoln’s Kookaburra graphite deposit.
“The area’s uranium potential is heightened by the occurrence of uraniferous ‘hot granites’ located proximal to reductants, such as graphite, that create favourable conditions for uranium deposition,” Lincoln said.
“The presence of extensively folded graphitic units along the shear zone forms structural traps and alteration zones conducive to shear zone-style uranium mineralisation.”
Historical exploration in this region has largely targeted iron ore and graphite, highlighting Lincoln’s opportunity at Yallunda.
Lincoln will focus its field reconnaissance efforts on areas south-west of the established Carinya and White Flat prospects.
“The results of the upcoming exploration program will provide crucial data to guide further exploration and development efforts at the Yallunda uranium project,” Lincoln said.
Lincoln recently conducted a first-pass reconnaissance program at its Eridani uranium project, identifying high levels of carnotite uranium mineralisation through portable X-ray fluorescence (pXRF) analysis.
Notable pXRF results included hits of 9250ppm uranium at MQ12, 6219ppm uranium at UMQ11 and 6890ppm uranium at UMQ10.
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