Universidad Complutense de Madrid
E-Prints Complutense

Río Tinto: a geochemical and mineralogical terrestrial analogue of Mars



Último año

Amils Samalot, Ricardo Ignacio y Fernández Remolar, David (2014) Río Tinto: a geochemical and mineralogical terrestrial analogue of Mars. Life, 4 (3). pp. 511-534. ISSN 2075-1729

Vista previa
Creative Commons License
Esta obra está bajo una licencia de Creative Commons: Reconocimiento.


URL Oficial: http://www.mdpi.com/2075-1729/4/3/511

URLTipo de URL


The geomicrobiological characterization of the water column and sediments of Río Tinto (Huelva, Southwestern Spain) have proven the importance of the iron and the sulfur cycles, not only in generating the extreme conditions of the habitat (low pH, high concentration of toxic heavy metals), but also in maintaining the high level of microbial diversity detected in the basin. It has been proven that the extreme acidic conditions of Río Tinto basin are not the product of 5000 years of mining activity in the area, but the consequence of an active underground bioreactor that obtains its energy from the massive sulfidic minerals existing in the Iberian Pyrite Belt. Two drilling projects, MARTE (Mars Astrobiology Research and Technology Experiment) (2003–2006) and IPBSL (Iberian Pyrite Belt Subsurface Life Detection) (2011–2015), were developed and carried out to provide evidence of subsurface microbial activity and the potential resources that support these activities. The reduced substrates and the oxidants that drive the system appear to come from the rock matrix. These resources need only groundwater to launch diverse microbial metabolisms. The similarities between the vast sulfate and iron oxide deposits on Mars and the main sulfide bioleaching products found in the Tinto basin have given Río Tinto the status of a geochemical and mineralogical Mars terrestrial analogue.

Tipo de documento:Artículo
Información Adicional:

© 2014 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).This revision has been supported by the ERC project ERC250350-IPBSL

Palabras clave:Acidophiles; Río Tinto; Iberian Pyrite Belt; Metal sulfides; Iron oxidation; Iron cycle; Sulfur cycle; Iron minerals; Jarosite; Mars
Materias:Ciencias > Física > Electricidad
Ciencias > Física > Electrónica
Código ID:29416
Depositado:14 Abr 2015 12:17
Última Modificación:14 Abr 2015 12:17

Descargas en el último año

Sólo personal del repositorio: página de control del artículo