Mineralogical and geochemical characterisation of open-air tailing and waste-rock dumps from the Libiola Fe-Cu sulphide mine (Eastern Liguria, Italy). (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Mineralogical and geochemical characterisation of open-air tailing and waste-rock dumps from the Libiola Fe-Cu sulphide mine (Eastern Liguria, Italy). (Articolo in rivista) (literal)

Anno

• 2007-01-01T00:00:00+01:00 (literal)

Alternative label

• Marescotti P., Carbone C., De Capitani L., Grieco G., Lucchetti G., Servida D. (2007)
  Mineralogical and geochemical characterisation of open-air tailing and waste-rock dumps from the Libiola Fe-Cu sulphide mine (Eastern Liguria, Italy).
  in Environmental geology (Berl.)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Marescotti P., Carbone C., De Capitani L., Grieco G., Lucchetti G., Servida D. (literal)

Rivista

• Environmental geology (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

• DOI 10.1007/s00254-007-0769-8. (literal)

Note

• ISI Web of Science (WOS) (literal)

Titolo

• Mineralogical and geochemical characterisation of open-air tailing and waste-rock dumps from the Libiola Fe-Cu sulphide mine (Eastern Liguria, Italy). (literal)

Abstract

• Active acid mine drainage (AMD) processes at the Libiola Fe-Cu sulphides mine are mainly triggered by water–rock interaction occurring within open-air tailing and waste-rock dumps. These processes are mainly controlled by exposure to weathering agents, the grain size of the dumped materials, and by the quantity of sulphides, the sulphide types, and their mode of occurrence. Due to these factors, several paragenetic stages of evolution have been recognised at different depths at different sites and within the same site. The dump samples were investigated with mineralogical (reflected- and transmitted-light optical microscopy, XRPD, and SEM-EDS) and geochemical (ICP-AES, Leco) techniques. The AMD evaluation of the tailing and waste-rock samples was performed by calculating the Maximum Potential Acidity, the Acid Neutralising Capacity, (and the Net Acid Producing Potential. The results allowed us to demonstrate that the open-air tailings had already superseded their AMD apex and are now practically inert material composed mainly of stable goethite±lepidocrocite±hematite assemblages. On the contrary, the sulphide-rich waste rocks still have a strong potential to produce long term AMD, causing the acidification of circulating waters and the release of several hazardous elements (literal)

Prodotto di

• Institute for the Dynamics of Environmental Processes (IDPA) (Istituto)
• Geologia delle catene orogeniche alpidiche. Geofisica crostale e litosferica con elaborazione di modelli 2D e 3D nell'area italiana. Cartografia geologica di base e tematica. (TA.P04.015.001) (Modulo)

Autore CNR

• LUISA DE CAPITANI (Persona)

Insieme di parole chiave

• Parole chiave di "Mineralogical and geochemical characterisation of open-air tailing and waste-rock dumps from the Libiola Fe-Cu sulphide mine (Eastern Liguria, Italy)." (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute for the Dynamics of Environmental Processes (IDPA) (Istituto)
• Geologia delle catene orogeniche alpidiche. Geofisica crostale e litosferica con elaborazione di modelli 2D e 3D nell'area italiana. Cartografia geologica di base e tematica. (TA.P04.015.001) (Modulo)

Autore CNR di

• LUISA DE CAPITANI (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Environmental geology (Rivista)

Insieme di parole chiave di

• Parole chiave di "Mineralogical and geochemical characterisation of open-air tailing and waste-rock dumps from the Libiola Fe-Cu sulphide mine (Eastern Liguria, Italy)." (Insieme di parole chiave)