The Mt. Palsson phosphate occurrence is located on the eastern slope of Mount Palsson and east of the Sukunka River.
Regionally, the area is underlain by a northwest-trending band of folded sedimentary rocks comprised of limestone, marble and calcareous sedimentary rocks of the Triassic Whitehorse Formation (Spray River Group), mudstone, siltstone, shale and fine clastic sedimentary rocks of the Triassic Sulphur Mountain Formation (Spray River Group) and limestone, marble and calcareous sedimentary rocks of the Mississippian Rundle Group. To the northeast and southwest undivided sedimentary rocks of the Upper Jurassic to Lower Cretaceous Minnes Group and fine clastic sedimentary rocks of the Devonian to Mississippian Besa River Formation, respectively, are exposed.
Locally, phosphorite is exposed in talus near the base of the Whistler member of the Lower Triassic Sulphur Mountain Formation (Spray River Group). The phosphorite bed is estimated to be 1.0 metre or less thick with a quartz-calcite matrix. Host lithologies are fine siltstones and weakly calcareous siltstones. Phosphate occurs as fluorapatite.
A grab sample from this locality contained 24.85 per cent phosphate (Fieldwork 1987).
In 2008, a float sample from the occurrence area yielded 24.5 per cent phosphate (Assessment Report 34177).
Work History
In 2008, the area was prospected and sampled by Fertoz International Organiz Inc. In 2013, a photogeological interpretation program was conducted. In 2021, the area was prospected and sampled by Renew Commodities Ltd.