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  1. Artikel ; Online: Trace elements mobility in soils from the hydrothermal area of Nisyros (Greece)

    Kyriaki Daskalopoulou / Sergio Calabrese / Silvia Milazzo / Lorenzo Brusca / Sergio Bellomo / Walter D'Alessandro / Konstantinos Kyriakopoulos / Franco Tassi / Francesco Parello

    Annals of Geophysics, Vol 57, Iss

    2015  

    Abstract: Nisyros Island, Greece, is a stratovolcano known for its intense hydrothermal activity. On June 2013, during a multidisciplinary field campaign, soil samples were collected in the caldera area to determinate the main mineralogical assemblages and to ... ...

    Abstract Nisyros Island, Greece, is a stratovolcano known for its intense hydrothermal activity. On June 2013, during a multidisciplinary field campaign, soil samples were collected in the caldera area to determinate the main mineralogical assemblages and to investigate the distribution of trace element concentrations and the possible relationship to the contribution of fluids of deep origin. Soil samples were analysed with XRD and for the chemical composition of their leachable (deionized water) and pseudo total (microwave digestion) fraction both for major and trace elements. The results allow to divide the samples in 2 groups: Lakki Plain and Stefanos Crater. The latter, where a fumarolic area is located, shows a mineralogical assemblage dominated by phases typical of hydrothermal alteration. Their very low pH values (1.9 – 3.4) show the strong impact of fumarolic gases which are probably also the cause of strong enrichments in these soils of highly volatile elements like S, As, Se, Bi, Sb, Tl and Te.
    Schlagwörter volatile elements ; fumarolic gases ; volcanoes ; Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Thema/Rubrik (Code) 910
    Sprache Englisch
    Erscheinungsdatum 2015-03-01T00:00:00Z
    Verlag Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Annex 2 to

    Kyriaki Daskalopoulou / Sergio Calabrese / Silvia Milazzo / Lorenzo Brusca / Sergio Bellomo / Walter D'Alessandro / Kostantinos Kyriakopoulos / Franco Tassi / Francesco Parello

    Annals of Geophysics, Vol 57, Iss

    Trace elements mobility in soils from the hydrothermal area of Nisyros (Greece)

    2015  

    Abstract: A.1 Analytical Tecniques All soil samples were air dried, thoroughly mixed and split into subsamples for analysis. Particular care was taken using a Riffle-type sample splitter to ensure that representative subsamples were obtained. All analyses were ... ...

    Abstract A.1 Analytical Tecniques All soil samples were air dried, thoroughly mixed and split into subsamples for analysis. Particular care was taken using a Riffle-type sample splitter to ensure that representative subsamples were obtained. All analyses were made after sieving the soil samples through a 2-mm sieve and, except for pH determination, ground with an agate mortar. [.]
    Schlagwörter Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2015-03-01T00:00:00Z
    Verlag Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

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  3. Artikel ; Online: Annex 1 to

    Sergio Calabrese / Sarah Scaglione / Silvia Milazzo / Walter D'Alessandro / Nicole Bobrowski / Giovanni Bruno Giuffrida / Dario Tedesco / Francesco Parello / Mathiew Yalire

    Annals of Geophysics, Vol 57, Iss

    Passive Degassing at Nyiragongo (D.R. Congo) and Etna (Italy) Volcanoes.

    2015  

    Abstract: Volcanic Emissions The technique for the assessment of the metal output from volcanoes was based on direct (in- plume) collection of the plume on filter substrates. Gas and aerosols in the volcanic plume have been sampled from the rims of the active ... ...

    Abstract Volcanic Emissions The technique for the assessment of the metal output from volcanoes was based on direct (in- plume) collection of the plume on filter substrates. Gas and aerosols in the volcanic plume have been sampled from the rims of the active craters. [.]
    Schlagwörter Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2015-03-01T00:00:00Z
    Verlag Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

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  4. Artikel ; Online: Annex 2 to

    Sergio Calabrese / Sarah Scaglione / Silvia Milazzo / Walter D'Alessandro / Nicole Bobrowski / Giovanni Bruno Giuffrida / Dario Tedesco / Francesco Parello / Mathiew Yalire

    Annals of Geophysics, Vol 57, Iss

    Passive Degassing at Nyiragongo (D.R. Congo) and Etna (Italy) Volcanoes.

    2015  

    Abstract: Plumes [.] ...

    Abstract Plumes [.]
    Schlagwörter Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2015-03-01T00:00:00Z
    Verlag Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

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  5. Artikel ; Online: Annex 1 to

    Kyriaki Daskalopoulou / Sergio Calabrese / Silvia Milazzo / Lorenzo Brusca / Sergio Bellomo / Walter D'Alessandro / Kostantinos Kyriakopoulos / Franco Tassi / Francesco Parello

    Annals of Geophysics, Vol 57, Iss

    Trace elements mobility in soils from the hydrothermal area of Nisyros (Greece)

    2015  

    Abstract: Nisyros Island, Greece, is a stratovolcano known for its intense hydrothermal activity. On June 2013, during a multidisciplinary field campaign, soil samples were collected in the caldera area to determinate the main mineralogical assemblages and to ... ...

    Abstract Nisyros Island, Greece, is a stratovolcano known for its intense hydrothermal activity. On June 2013, during a multidisciplinary field campaign, soil samples were collected in the caldera area to determinate the main mineralogical assemblages and to investigate the distribution of trace element concentrations and the possible relationship to the contribution of fluids of deep origin. Soil samples were analysed with XRD and for the chemical composition of their leachable (deionized water) and pseudo total (microwave digestion) [.]
    Schlagwörter Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2015-03-01T00:00:00Z
    Verlag Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  6. Artikel ; Online: Annex 3 to

    Kyriaki Daskalopoulou / Sergio Calabrese / Silvia Milazzo / Lorenzo Brusca / Sergio Bellomo / Walter D'Alessandro / Kostantinos Kyriakopoulos / Franco Tassi / Francesco Parello

    Annals of Geophysics, Vol 57, Iss

    Trace elements mobility in soils from the hydrothermal area of Nisyros (Greece)

    2015  

    Abstract: Mineralogical Assemblages [.] ...

    Abstract Mineralogical Assemblages [.]
    Schlagwörter Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2015-03-01T00:00:00Z
    Verlag Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

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  7. Artikel ; Online: Passive degassing at Nyiragongo (D.R. Congo) and Etna (Italy) volcanoes

    Sergio Calabrese / Sarah Scaglione / Silvia Milazzo / Walter D'Alessandro / Nicole Bobrowski / Giovanni Bruno Giuffrida / Dario Tedesco / Francesco Parello / Mathiew Yalire

    Annals of Geophysics, Vol 57, Iss

    2015  

    Abstract: Volcanoes are well known as an impressive large natural source of trace elements into the troposphere. Etna (Italy) and Nyiragongo (D.R. Congo) are two stratovolcanoes located in different geological settings, both characterized by persistent passive ... ...

    Abstract Volcanoes are well known as an impressive large natural source of trace elements into the troposphere. Etna (Italy) and Nyiragongo (D.R. Congo) are two stratovolcanoes located in different geological settings, both characterized by persistent passive degassing from their summit craters. Here, we present some results on trace element composition in volcanic plume emissions, atmospheric bulk deposition (rainwater) and their uptake by the surrounding vegetation, with the aim to compare and identify differences and similarities between these two volcanoes. Volcanic emissions were sampled by using active filter-packs for acid gases (sulfur and halogens) and specific teflon filters for particulates (major and trace elements). The environmental impact of the volcanogenic deposition in the area surrounding of the crater rims was investigated by using different sampling techniques: bulk rain collectors’ gauges were used to collect atmospheric bulk deposition, and biomonitoring was carried out to collect gases and particulates by using endemic plant species. The estimates of the trace element fluxes confirm that Etna and Nyiragongo are large sources of metals into the atmosphere, especially considering their persistent state of passive degassing. The large amount of emitted trace elements is clearly reflected on the chemical composition of rainwater collected at the summit areas both for Etna and Nyiragongo. Moreover, the biomonitoring results highlight that bioaccumulation of trace elements is extremely high in the proximity of the crater rim and de- creases with the distance from the active craters.
    Schlagwörter Trace elements ; volcanic emissions ; rainwater ; biomonitoring ; Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Thema/Rubrik (Code) 550
    Sprache Englisch
    Erscheinungsdatum 2015-02-01T00:00:00Z
    Verlag Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

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