Samples of efflorescences and encrustations of hydrothermal origin were collected at Sousaki (Greece) and analysed for their mineralogical (XRD) and chemical composition. Solutions obtained both from mineralization with HNO3 and from leaching with deionised water were analysed for major (ICP-OES), minor and trace metals (ICP-MS) and sulfate contents (IC). Results evidence the dependence of the chemical and mineralogical composition on micro-environmental conditions i.e. humidity, oxygen-rich or -poor environment, exposed or sheltered from meteoric agents. In fact, the presence of highly soluble sulfate minerals with elevated contents of many metals (e.g. Mg, Al, Fe, Mn, Cr, Ni, etc.) further underscores the important influence of hydrothermal activity on elements' mobility, whilst the sometimes very high concentrations in toxic elements like Al, Cr, Ni suggest also possible environmental impacts.

D'Alessandro W., Calabrese S., Bellomo S., Brusca L., Daskalopoulou K., Li Vigni L., et al. (2020). Impact of hydrothermal alteration processes on element mobility and potential environmental implications at the Sousaki solfataric field (Corinthia - Greece). JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH, 407, 107121 [10.1016/j.jvolgeores.2020.107121].

Impact of hydrothermal alteration processes on element mobility and potential environmental implications at the Sousaki solfataric field (Corinthia - Greece)

Calabrese S.
;
Li Vigni L.;Randazzo L.;
2020

Abstract

Samples of efflorescences and encrustations of hydrothermal origin were collected at Sousaki (Greece) and analysed for their mineralogical (XRD) and chemical composition. Solutions obtained both from mineralization with HNO3 and from leaching with deionised water were analysed for major (ICP-OES), minor and trace metals (ICP-MS) and sulfate contents (IC). Results evidence the dependence of the chemical and mineralogical composition on micro-environmental conditions i.e. humidity, oxygen-rich or -poor environment, exposed or sheltered from meteoric agents. In fact, the presence of highly soluble sulfate minerals with elevated contents of many metals (e.g. Mg, Al, Fe, Mn, Cr, Ni, etc.) further underscores the important influence of hydrothermal activity on elements' mobility, whilst the sometimes very high concentrations in toxic elements like Al, Cr, Ni suggest also possible environmental impacts.
D'Alessandro W., Calabrese S., Bellomo S., Brusca L., Daskalopoulou K., Li Vigni L., et al. (2020). Impact of hydrothermal alteration processes on element mobility and potential environmental implications at the Sousaki solfataric field (Corinthia - Greece). JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH, 407, 107121 [10.1016/j.jvolgeores.2020.107121].
File in questo prodotto:
File Dimensione Formato  
EU_WEST_1-prod-s3-ucmdata-evise-c5598f7b155acbe7e46f1e8b40767593-C_O9624942_5524532_compressed.pdf

accesso aperto

Descrizione: main article
Tipologia: Pre-print
Dimensione 932.83 kB
Formato Adobe PDF
932.83 kB Adobe PDF Visualizza/Apri
Dalessandro_Calabrese.pdf

Solo gestori archvio

Tipologia: Versione Editoriale
Dimensione 3.04 MB
Formato Adobe PDF
3.04 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/449239
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 1
social impact