Rio Colorado

stratabound potash-bearing salt in Argentina

Geologic information

Location:-69.3842, -37.1144
(click for info)
Site typelease/concession/permit area
Deposit typestratabound potash-bearing salt
Evaporite basinNeuquen
Basin typeforeland basin
Geologic unitHuitrin Fm
Lower Cretaceous
Minimum:Mesozoic-Cretaceous-Lower Cretaceous-Barremian
Maximum:Mesozoic-Cretaceous-Lower Cretaceous-Barremian
Potassium minerals:
Other minerals:
Notes:Deposit has no carnallite.
Geologic map unit-69.3842, -37.1144
Nearby scientific dataFind additional scientific data near this location

Economic information

StatusUnder Development
CompanyVale (2012)
Estimates of reserves or resources
Ore tonnage1) 1500; 2) 62 prov; 3) >100Million tonnes
K2O tonnage1) 409; 3) >20Million tonnes
Grade of K2O1) 27.28; 3) 20% of ore
Data source1) Argentina Direccion Nacional (1991); 2) Kendall (1999); 3) Backus (2006)

Reference information


No production as of 1991; previous companies include MineraTea and Potasio Rio Colorado.


Argentina Direccion Nacional de Mineria y Geologia, 1991, Report on the Argentine mining sector, Argentine selected mining projects: Buenos Aires, Argentina Direccion Nacional de Mineria y Geologia.
Backus, R., 2006, Rio Tinto rolls out mineral plans: Industrial Minerals, no. 469, p. 8.
Fertilizer International, 2005, Jam tomorrow in Argentina: Fertilizer International, no. 408, p. 51-57.
Howell, J.A., Schwarz, E., Spalletti, L.A., and Veiga, G.D., 2005, The Neuquen Basin; an overview, in Veiga, G.D., Spalletti, L.A., Howell, J.A., and Schwarz, E., eds., The Neuquen Basin, Argentina; A case study in sequence stratigraphy and basin dynamics: London, Geological Society Special Publication 252, p. 1-14.
Industrial Minerals, 2001a, German group in potash j-v talks: Industrial Minerals, no. 405, p. 9.
Kendall, T., 1999, Argentina's industrial minerals: Industrial Minerals, no. 381, p. 55-77.
Moore, P., 2005, New mineral horizons for Rio Tinto: Industrial Minerals, no. 456, p. 8-9.
Roskill Information Services Ltd., 1989, The economics of potash (2d ed.): London, Roskill Information Services Ltd., 121 p.