de.pangaea.dataset807041 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-05-01T00:26:24Z https://doi.pangaea.de/10.1594/PANGAEA.807041 <gco:CharacterString>Image analysis from TEM and AFM micrograph, Table S1, S2, S3, Figure S1, Figure S2</gco:CharacterString> 2013-02-10T21:46:50 publication https://doi.org/10.1594/PANGAEA.807041 Kádár, Enikö
enik@pml.ac.uk
author Fisher, Andrew https://orcid.org/0000-0003-4373-4904 information author Stolpe, Björn author Harrison, Roy M author Parello, Francesco
parello@unipa.it
author Lead, Jamie author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital Supplement to: Kádár, Enikö; Fisher, Andrew; Stolpe, Björn; Harrison, Roy M; Parello, Francesco; Lead, Jamie (2012): Metallic nanoparticle enrichment at low temperature, shallow CO2 seeps in Southern Italy. Marine Chemistry, 140, 24-32, https://doi.org/10.1016/j.marchem.2012.07.001 We report on metal enrichment along a natural pH gradient owing to increased CO2 degassing at cold, shal- low seeps of Vulcano Island in the Mediterranean Sea, off Sicily. We assessed composition of unfiltered and filtered seawater (b100 nm) along acidic zones ranging between ambient and pH 5, and showed that most seep derived elements are present as nanoclusters which then aggregate into larger colloids while mixing with ambient seawater along a pH gradient. Size and elemental composition of such naturally occurring nanoparticles assessed by modern characterisation methods were in good agreement with the results from conventional analytical methods. We provide analytical evidence for the presence in the water column of a large fraction of seep derived ele- ments (e.g. approximately 50% of iron, over 80% of Mn, 100% of Cr, S and Zn) in the form of nano sized par- ticles (e.g. b100 nm) even at typical open ocean pHs. We launch in situ sampling protocols and sample preparation procedures for multi-method suitable to obtain accurate measurements on nanoparticles from environmental samples. Based on our results a first insight to the formation of natural nanoparticles at cold CO2 seeps is presented and the persistence of such nano-clusters in the surrounding seawater is stipulated. completed MedSeA Mediterranean Sea Acidification in a Changing Climate theme <gco:CharacterString>PANGAEA Project List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-3.0: Creative Commons Attribution 3.0 Unported textTable und geoscientificInformation 14.9 14.9 38.53 38.53 application/pdf unknown https://hdl.handle.net/10013/epic.40911.d002 download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: Vulcano_Island * LATITUDE: 38.530000 * LONGITUDE: 14.900000 * LOCATION: Aeolian Islands, Mediterranean Sea, off Sicily Related to <gco:CharacterString>Organic and inorganic geochemistry of low temperature gas discharges at the Baia di Levante beach, Vulcano Island, Italy</gco:CharacterString> 2001-01-01 publication https://doi.org/10.1016/S0377-0273(00)00284-5 Capaccioni, B author Tassi, F https://orcid.org/0000-0002-3319-4257 information author Vaselli, O https://orcid.org/0000-0001-8121-4438 information author documentDigital Journal of Volcanology and Geothermal Research 108 173-185 Related to <gco:CharacterString>Enrichment in trace metals (Al, Mn, Co, Cu, Mo, Cd, Fe, Zn, Pb and Hg) of macro-invertebrate habitats at hydrothermal vents along the Mid-Atlantic Ridge</gco:CharacterString> 2005-01-01 publication https://doi.org/10.1007/s10750-005-4758-1 Kádár, Enikö
enik@pml.ac.uk
author Costa, Valentina author Martins, Ines
ines.ca.martins@uac.pt
https://orcid.org/0000-0002-5362-9801 information author Santos, Ricado Serrao author Powell, Jonathan J author documentDigital Hydrobiologia 548(1) 191-205 Related to <gco:CharacterString>Hydrothermal vents as a kinetically stable source of iron-sulphide-bearing nanoparticles to the ocean</gco:CharacterString> 2011-01-01 publication https://doi.org/10.1038/ngeo1148 Yücel, Mustafa
myucel@ims.metu.edu.tr
https://orcid.org/0000-0002-7478-902X information author Gartman, Amy author Chan, Clara S author Luther, Georg W author documentDigital Nature Geoscience 4 367-371 Further details <gco:CharacterString>Supplementary information - Image analysis from TEM and AFM micrographs</gco:CharacterString> hdl:10013/epic.40911.d001 documentDigital