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  • 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous  (4)
  • RCS MediaGroup S.p.A.  (2)
  • Accademia Nazionale dei Lincei  (1)
  • American Chemical Society
  • American Chemical Society (ACS)
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  • 1
    facet.materialart.
    Unknown
    Blackening of Pompeian Cinnabar paintings: X-ray micro-spectroscopy analysis (2007)
    American Chemical Society
    Details
    Publication Date: 2017-04-04
    Description: Red Pompeian paintings, very famous for their deep intensity, are currently suffering from darkening. The origins of this darkening degradation are not clearly identified yet and remain a major issue for curators. In the specific case of cinnabar (HgS)-based red pigment, a photoinduced conversion into black metacinnabar is usually suspected. This work is focused on the blackening of red cinnabar paintings coated on a sparry calcite mortar. Different samples exhibiting different levels of degradation were selected upon visual observations and analyzed by synchrotron-based microanalytical techniques. Atomic and molecular compositions of the different debased regions revealed two possible degradation mechanisms. On one hand, micro X-ray fluorescence elemental maps show peculiar distributions of chlorine and sulfur. On the other hand, X-ray absorption spectroscopy performed at both Cl and S K-edges confirms the presence of characteristic degradation products: (i) Hg- Cl compounds (e.g., corderoite, calomel, and terlinguaite), which may result from the reaction with exogenous NaCl, in gray areas; (ii) gypsum, produced by the calcite sulfation, in black coatings. Metacinnabar is never detected. Finally, a cross section was analyzed to map the in-depth alteration gradient. Reduced and oxidized sulfur distributions reveal that the sulfated black coating consists of a 5-ím-thick layer covering intact cinnabar.
    Description: Published
    Description: 7484-7492
    Description: reserved
    Keywords: Microspectroscopy Analysis ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 2
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    Unknown
    SEA LEVEL CHANGE ALONG THE TYRRHENIAN COAST FROM EARLY HOLOCENE TO THE PRESENT (2012)
    Accademia Nazionale dei Lincei
    Details
    Publication Date: 2020-02-24
    Description: In any discussion of the evolution of a river basin, the history of sealevel change is important since river gradients and delta developments are strongly influenced by local sea level. Also, sea level provides a reference for inferring past vertical tectonic stability from the geological record. Hence it is appropriate that the discussion on the Tiber basin starts with sea level change along the Tyrrhenian coast during the Holocene. The past evidence for sea level comes from inferences of the position of the sea surface with respect to the present. Hence it is a relative measure; a function of both the changing position of the ocean surface and of the land surface or an integrated measure of changes in ocean volume, land movement and redistribution of water within the ocean basins. The observation therefore contains information on all the processes that change these surfaces: on geophysical, glaciological and oceanographic processes.
    Description: Published
    Description: Accademia Nazionale dei Lincei, Roma, Italy
    Description: 3.7. Dinamica del clima e dell'oceano
    Description: open
    Keywords: Sea level, Tyrrhenian sea, Tiber ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Conference paper
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  • 3
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    Unknown
    La lezione della terra: tutto quello che ci hanno insegnato i terremoti (2016)
    RCS MediaGroup S.p.A.
    Details
    Publication Date: 2017-04-04
    Description: Milano ospita una mostra sui sismi, dove uno spazio è riservato anche a quelli storici come Messina 1908. Una studiosa analizza i più importanti e ciò che abbiamo imparato
    Description: Published
    Description: 7IT. Educazione e divulgazione scientifica
    Description: 8IT. Informazione e editoria
    Description: 9IT. Geoetica
    Description: N/A or not JCR
    Description: open
    Keywords: terremoti ; micronazione sismica ; progettazione anti-sismica ; classificazione sismica ; pericolosità sismica ; rischio sismico ; liquefazione ; prevenzione ; normativa sismica ; politica ; 04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous ; 04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous ; 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk ; 05. General::05.03. Educational, History of Science, Public Issues::05.03.99. General or miscellaneous ; 05. General::05.08. Risk::05.08.99. General or miscellaneous ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 4
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    Unknown
    La Terra uccide ma possiamo limitare i danni (2016)
    RCS MediaGroup S.p.A.
    Details
    Publication Date: 2017-04-04
    Description: Cresce la vulnerabilità. Megacittà con milioni di abitanti hanno raggiunto aree dalle caratteristiche geomorfologiche decisamente sfavorevoli. La lezione di Amatrice. L'Italia è stata colta impreparata dal recente sisma: sappiamo gestire l'emergenza, ma la prevenzione è carente
    Description: Published
    Description: 7IT. Educazione e divulgazione scientifica
    Description: 9IT. Geoetica
    Description: N/A or not JCR
    Description: open
    Keywords: terremoti ; pericolosità ; rischio ; vulnerabilità ; prevenzione ; società ; 05. General::05.03. Educational, History of Science, Public Issues::05.03.99. General or miscellaneous ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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