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  1. Article ; 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.
    Keywords volatile elements ; fumarolic gases ; volcanoes ; Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Subject code 910
    Language English
    Publishing date 2015-03-01T00:00:00Z
    Publisher Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; 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. [.]
    Keywords Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2015-03-01T00:00:00Z
    Publisher Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Article ; 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. [.]
    Keywords Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2015-03-01T00:00:00Z
    Publisher Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Article ; 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 [.]
    Keywords Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2015-03-01T00:00:00Z
    Publisher Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article ; 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) [.]
    Keywords Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2015-03-01T00:00:00Z
    Publisher Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  6. Article ; 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 [.]
    Keywords Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2015-03-01T00:00:00Z
    Publisher Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  7. Article ; 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.
    Keywords Trace elements ; volcanic emissions ; rainwater ; biomonitoring ; Geophysics. Cosmic physics ; QC801-809 ; Physics ; QC1-999 ; Science ; Q
    Subject code 550
    Language English
    Publishing date 2015-02-01T00:00:00Z
    Publisher Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

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