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Fe-sulphate-rich evaporative mineral precipitates from the Río Tinto, southwest Spain

Published online by Cambridge University Press:  05 July 2018

T. Buckby ,
S. Black ,
M. L. Coleman  and
M. E. Hodson
T. Buckby
Affiliation:
Postgraduate Research Institute for Sedimentology, The University of Reading, Whiteknights, Reading, Berkshire RG6 6AB, UK
S. Black
Affiliation:
Postgraduate Research Institute for Sedimentology, The University of Reading, Whiteknights, Reading, Berkshire RG6 6AB, UK
M. L. Coleman
Affiliation:
Postgraduate Research Institute for Sedimentology, The University of Reading, Whiteknights, Reading, Berkshire RG6 6AB, UK
M. E. Hodson
Affiliation:
Department of Soil Science, The University of Reading, Whiteknights, Reading, Berkshire RG6 6DW, UK
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Abstract

The soluble metal sulphate salts melanterite, rozenite, rhomboclase, szomolnokite, copiapite, coquimbite, hexahydrite and halotrichite, together with gypsum, have been identified, some for the first time, on the banks of the Rio Tinto, SW Spain. Secondary Fe-sulphate minerals can form directly from evaporating, acid, sulphate-rich solutions as a result of pyrite oxidation. Chemical analyses of mixtures of these salt minerals indicate concentrations of Fe (up to 31 wt.%), Mg (up to 4 wt.%), Cu (up to 2 wt.%) and Zn (up to 1 wt.%). These minerals are shown to act as transient storage for metals and can store on average up to 10% (9.5 — 11%) and 22% (20—23%), Zn and Cu respectively, of the total discharge of the Rio Tinto during the summer period.

Melanterite and rozenite precipitates at Rio Tinto are only found in association with very acidic drainage waters (pH <1.0) draining directly from pyritic waste piles. Copiapite precipitates abundantly on the banks of the Rio Tinto by (1) direct evaporation of the river water; or (2) as part of a paragenetic sequence with the inclusion of minor halotrichite, indicating natural dehydration and decomposition. The natural occurrences are comparable with the process of paragenesis from the evaporation of Rio Tinto river water under laboratory experiments resulting in the formation of aluminocopiapite, halotrichite, coquimbite, voltaite and gypsum.

Keywords

melanteriterozeniterhomboclaseszomolnokitecopiapitecoquimbitehexahydritehalo-trichiteRío TintoSpain.
Type
Research Article
Information
Mineralogical Magazine , Volume 67 , Issue 2 , April 2003 , pp. 263 - 278
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2003

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References

Alpers, C.N., Nordstrom, D.K. and Thompson, J.M. (1994) Seasonal variations of Zn/Cu ratios in acid mine water from Iron Mountain, California. Pp. 324—344 in: Environmental Geochemistry of Sulfide Oxidation (Alpers, C.N. and Blowes, D.W., editors). ACS Symposium Series 550, American Chemical Society Symposium Series.Google Scholar
Avery, D. (1974) Not on Queen Victoriafs Birthday: the story of the Rio Tinto mines. Collins, London, 464 pp.Google Scholar
Bandy, M.C. (1938) Mineralogy of three sulphate deposits of northern Chile. American Mineralogist, 23, 669—760.Google Scholar
Bigham, J.M. and Nordstrom, D.K. (2000) Iron and aluminium hydroxysulfates from acid sulfate waters. Pp. 351—393 in: Sulfate Minerals — Crystallography, Geochemistry, and Environmental Significance (Ribbe, P.H., editor). Reviews in Mineralogy and Geochemistry 40. Mineralogical Society of America & Geochemical Society, Washington, D.C.Google Scholar
Buurman, P. (1975) In vitro weathering products of pyrite. Geologie en Mijnbouw, 54, 101—105.Google Scholar
Calderón, S. (1910) Los Minerales de Espaiia. Pp. 416—563 in: Junta para Ampliación de Estudios e Investigaciones Cientificas, Vol. 2 (Arias, E., editor). Madrid.Google Scholar
Chukhrov, F.V. (1953) Sequence of the formations in oxidation zones in ore deposits of the Kazakhstan steppe. Voprosy Petrog Mineral Akad Nauk SSSR, 2, 93—99.Google Scholar
Cravotta, C.A. III. (1994) Secondary iron-sulfate minerals as sources of sulfate and acidity. Pp. 516—535 in: Environmental Geochemistry of Sulfide Oxidation (Alpers, C.N. and Blowes, D.W., editors). ACS Symposium Series 550, American Chemical Society Symposium Series.Google Scholar
Deer, W.A., Howie, R.A. and Zussman, J. (1992) An Introduction to the Rock-forming Minerals, Longman, Harlow/Wiley, New York, p. 696.Google Scholar
Edwards, K.J., Bond, P.L., Druschel, G.K., McGuire, M.M., Hamers, R.J. and Banfield, J.F. (2000) Geochemical and biological aspects of sulfide mineral dissolution: lessons from Iron Mountain, California. Chemical Geology, 169, 383—397.CrossRefGoogle Scholar
Florencio, M.J. (1990) Un pueblo por descrubir. Junta de Andalucia, Espaiia, Consejeria de economia y hacienda, 472.Google Scholar
Frau, F. (2000) The formation-dissolution-precipitation cycle of melanterite at the abandoned pyrite mine of Genna Luas in Sardinia, Italy: environmental implications. Mineralogical Magazine, 64, 995—1006.CrossRefGoogle Scholar
Galan, H.E. and Mirete, M.S. (1979) Introduccic>n a los Minerales de Espafia. Instituto Geol(Sgico y Minero de Espana, Madrid, p. 420.Google Scholar
Garcia Garcia, G. (1996) The Rio Tinto Mines, Huelva, Spain. The Mineralogical Record , 27 (July—August), 275—285.Google Scholar
Hudson-Edwards, K.A., Schell, C. and Macklin, M.G. (1999) Mineralogy and geochemistry of alluvium contaminated by metal mining in the Rio Tinto area, southwest Spain. Applied Geochemistry, 14, 1015—1030.CrossRefGoogle Scholar
Jambor, J.L., Nordstrom, D.K. and Alpers, C.N. (2000) Metal-sulfate salts from sulfide mineral oxidation. Pp. 305—340 in: Sulfate Minerals — Crystallography, Geochemistry, and Environmental Significance (Ribbe, P.H., editor). Reviews in Mineralogy and Geochemistry, 40. Mineralogical Society of America, Geochemical Society, Washington, D.C.Google Scholar
Keith, D.C., Runnells, D.D., Esposito, K.J., Chermak, J.A., Levy, D.B., Hannula, S.R., Watts, M. and Hall, L. (2001) Geochemical models of the impact of acidic groundwater and evaporative sulfate salts on Boulder Creek at Iron Mountain, California. Applied Geochemistry, 16, 947—961.CrossRefGoogle Scholar
Kravtsov, E.D. (1984) Characteristics of sulfate metasomatism of sulfide ores in a cryogenic zone. Metasomatizm Rudoebraz, (5th Mater-VsesKonf 1982), 189—198.Google Scholar
López-Archilla, A.I., Marin, I. and Amils, R. (2001) Microbial community composition and ecology of an acidic aquatic environment: The Tinto River, Spain. Microbial Ecology, 41, 20—35.CrossRefGoogle ScholarPubMed
Lugaski, T. (1996) Copper from the Bronze Age to the Fall of Rome, 2000. http://www.unr.edu/sb204/geology/rome.html.Google Scholar
Minakawa, T. and Noto S. (1994) Botryogen from the Okuki mine, Ehime Prefecture, Japan. Chigaku Kenkyu, 43, 175—179.Google Scholar
Nelson, C.H. and Lamothe, P.J. (1993) Heavy metal anomalies in the Tinto and Odiel River and Estuary System, Spain. Estuaries, 16, 496—511.CrossRefGoogle Scholar
Nordstrom, D.K. (1982) Aqueous pyrite oxidation and the consequent formation of secondary minerals. Pp. 37—56 in: Acid Sulphate Weathering, Vol. 10 (Kittrick, J.A., Fanning, D.S. and Hessner, L.R., editors). Special Publication, Soil Science Society of America, Madison, Wisconsin.Google Scholar
Nordstrom, D.K. and Alpers, C.N. (1999) Negative pH, efflorescent mineralogy, and consequences for environmental restoration at the Iron Mountain Superfund site, California. Proceedings of the National Academy of Science, USA, 96, 3455—3462.CrossRefGoogle ScholarPubMed
Salkield, L. (1987) A technical history of the Rio Tinto mines: some notes on exploitation from prePhoenician times to the 1950's (Cahalan, M.J., editor). London Institution of Mining and Metallurgy, Elsevier Science Ltd., London, p. 114.Google Scholar
Schrenk, M.O., Edwards, K.J., Goodman, R.M., Hamers, J. and Banfield, J.F. (1998) Distribution of Thiobacillus ferrooxidans and Leptospirillum fer- rooxidans: Implications for generation of acid mine drainage. Science, 279, 1519—1522.Google ScholarPubMed
Singer, P.C. and Stumm, W. (1970) Acidic mine drainage: the rate-determining step. Science, 167, 1121—1123.CrossRefGoogle ScholarPubMed
Tu, K.C. and Li, H.L. (1963) Characteristic features of the oxidation zone of the sulfide deposits in arid to extremely arid regions. Ti Chih Hsueh Pao, 43, 361—377.Google Scholar
van Geen, A. and Chase, Z. (1998) Recent mine spill adds to contamination of southern Spain. EOS, 79, 449—455.CrossRefGoogle Scholar
Willies, L. (1989) The Industrial Landscape of Rio Tinto, Huelva, Spain. Industrial Archaeology Review , XII, 67—76.CrossRefGoogle Scholar
Yu, J.Y., McGenity, T.J and Coleman, M.L. (2001) Solution chemistry during the lag phase and exponential phase of pyrite oxidation by Thiobacillus ferrooxidans. Chemical Geology, 175, 307—317.CrossRefGoogle Scholar