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Location: 280 km NW from Port Moresby, Papua New Guinea
Level 7, 300 Adelaide StreetBrisbaneQueensland, Australia4000
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Orokolo Bay Project is situated within the sedimentary Papuan Basin of PNG. The Orokolo Bay Resource comprises a series of semi-parallel preserved ESE-WNW striking narrow but strike-extensive multiple palaeo-strandline deposits formed by a combination of wave and aeolian action which dumps, then concentrates the heavy minerals (vanadium titanomagnetite and zircon) on the beach fore-dune. Other minerals present in small quantities are rutile, ilmenite, apatite, pyroxene, garnet, and silica sands.The source of the magnetite is believed to be basaltic and andesitic volcanic rocks, the erosional products from which are transported down drainages to the coast where they are deposited and reworked by coastal wave and wind action.In summary the 6 main layers identified within the sequence are in the following sequential order. Soil, Fine grained sands, Medium-fine sands, Coarse gritty sands, Clays, Bedrock.MineralisationMineralisation is generally confined to the upper 2-2.5m of the soil/sand profile as loose sand grains, but significant mineralisation can occur in swamp areas beneath the swamp itself and on the dune ridges. Sand size is generally <1mm with a combination of fully liberated and interlocked mineral grains. The mineralisation of economic interest from the recovered magnetic fraction occurs primarily astitanomagnetite with ilmenite, Ti-oxide phases and Fe oxides including hematite and alteration products. Significant zircon is contained in the non-magnetic fraction of the heavy mineral concentrate. DimensionsMineralisation is flat-lying.Mineralisation in the western section has a strike length of 25km on a 120" direction with an overall average width of 2.5km.The individual strandlines can vary from 100m to over 20km in strike length.The width of the individual mineralised zones varies from 10 to 80m wide, while the depth varies from 0.5 to 4.5m, averaging 2-2.5m in thickness, and lying on average 0 to 1m below the current land surface, often with minimal soil cover.
