English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/22412
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 2 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Pyrite formation driven by MSW landfill leachate in the Madrid Basin,Spain

AutorCastelló, Ricardo ; Recio, Clemente; Morillas, Pilar; Vizcayno, Carmen
Palabras claveMadrid Basin
Gypsum
Pyrite
Stable isotopes
Landfill leachate
Fecha de publicación2008
EditorSpringer
CitaciónEnvironmental Geology 54:679-688 (2008)
ResumenThe role of municipal solid waste (MSW) landfill leachate on the genesis of minor amounts of pyrite associated with gypsum in an otherwise predominantly evaporitic sequence was studied in geological and geochemical terms. The potential association between landfill leachate and the conditions required for bacterial reduction of sulfate and fixation of H2S as pyrite were examined. The lithological column was generally found to contain little or no Fe. The d34S values for sulfates were consistent with previously reported data; however, the measured d18O values were slightly higher. Sulfides disseminated in the marl/lutite exhibited higher d34S values ( –8&) than gypsum-coating pyrite crystals (d34S < –30&). Dissolution of gypsum to sulfate and the supply of metabolizable organic matter and Fe required for H2S fixation as sulfides may have originated from landfill leachate. Intermittent availability of leachate, a result of the precipitation regime, can facilitate sulfur disproportionation and lead to fractionations as high as SO2/4-S2 -50º%
Descripción9 pages,figures and tables statistics.
Versión del editorhttp://dx.10.1007/s00254-007-0837-0
URIhttp://hdl.handle.net/10261/22412
DOI10.1007/s00254-007-0837-0
ISSN0943-0105
Aparece en las colecciones: (IRN) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.