Polda Basin rock salt in South Australia: Mercury 1’s approximately 1,700-metre massive halite interval, Kilroo Formation context and offshore subsurface evaporite geology.
Amadeus Basin rock salt in Australia’s Northern Territory: Chandler Formation salt, the deeper Gillen Salt Member, diapiric uplift and very thick subsurface evaporites.
Adavale Basin rock salt in Queensland: the Boree halite interval, approximately 555 metres of drilled salt, basin-scale evaporite exploration and deep subsurface resource potential.
Australia’s deep geological halite: Adavale–Boree in Queensland, Amadeus–Chandler in the Northern Territory, Polda–Kilroo in South Australia and Canning–Carribuddy in Western Australia.
Zipaquirá and Nemocón salt centers in Colombia: historic underground halite mining, solution wells, salt-mine heritage and the 2025 termination of Colsalminas concessions.
Colombia’s Andean rock salt: Zipaquirá and Nemocón in Cundinamarca, Upín in Meta, Cretaceous evaporites, diapiric structures and the transition from historic mining to solution extraction.
Maceió sal-gema mining in Brazil: solution-mined caverns, the 2018–2019 subsidence investigation, suspension of extraction in 2019 and ongoing closure, monitoring and stabilisation.
Brazilian rock salt in the Sergipe–Alagoas and South Atlantic margin: Aptian halite, deep salt tectonics, Maceió solution mining and the geological setting of the South Atlantic salt giant.
Tunisia’s Triassic evaporites: diapirs, salt walls, pillows, allochthonous sheets and salt-glacier structures shaped by Jurassic–Cretaceous extension and later Atlas compression.
Danakil Depression rock salt in Ethiopia: a 625-metre core with about 60% halite, active evaporite formation, potash intervals, Assale salt extraction and Afar Rift tectonics.
