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Uranium ore-forming systems of the - Geoscience Australia

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<strong>Uranium</strong> <strong>ore</strong>-<strong>forming</strong> <strong>systems</strong> <strong>of</strong> <strong>the</strong> Lake Frome region(c) In combination with (a) or (b), fluid focussing occurred due to locally enhancedpermeabilities (due to coarser sediments or small-scale, permeable faults) and <strong>the</strong>reductant was mobile, and uranium deposition was due to structural or o<strong>the</strong>r local controlon <strong>the</strong> pathways <strong>of</strong> mobile reductants. This could have allowed locally greater fluidfluxes and m<strong>ore</strong> efficient deposition to occur.Page 89 <strong>of</strong> 151

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