RE: They found what they were looking for.23 Feb 2024 14:40
Rukwa hosts independently verified (SRK-2020) Best-Estimate Unrisked Prospective Recoverable Helium Resource (2U/P50) of 138Bcf, making this the largest known primary helium resource in the world. Helium concentrations up to 10.2% He have been recorded in surface seeps, representing incredible high grade compared to typical values of 0.1-0.3% associated with hydrocarbon by-product production
So there is a chance concentrations will increase as Lorna said the 4.7% helium was diluted.