Advertisement

Il Nuovo Cimento C

, Volume 16, Issue 2, pp 155–162 | Cite as

Radiometric and tephroanalysis dating of recent Ionian Sea cores

  • G. Bonino
  • G. Cini Castagnoli
  • E. Callegari
  • Guang-Mei Zhu
Article

Summary

An accurate dating of recent Ionian Sea sediment cores has been performed by the210Pb radiometric method and by a detailed tephroanalysis. The markers of the historical volcanic eruptions which occurred in the Campanian area (Vesuvius, Phlegrean Fields, Ischia) during the last two millenia have been identified along the cores. Among the others, the famous Plinian Vesuvius eruption of 79 AD, which buried the Roman town of Pompei, has been recognized. Direct210Pb dating is limited to the last two centuries. The tephroanalysis demonstrates that the sedimentation rate estimated by the210Pb method is correct and it is constant, at least for the last 2 ky. The presence of the137Cs peak due to the intense activity of nuclear-weapon testing in the atmosphere in 1963–64 AD assures that the top of the core is present and not disturbed. The high precision of the core dating allows to transform the depth scale into a time scale with an accuracy of ∼1%. The analysis of several cores taken in the same area demonstrates that the results presented here are of general validity, at least in this region. The carbonatic mud deposited in the last millennia in the Gallipoli Terrace can be successfully utilized for investigating the environmental conditions in the recent past.

PACS 91.35. Nm

Geochronology 

PACS 91.50

Marine geology and geophysics 

PACS 29.70. Gc

Radiation measurement detection and counting 

PACS 91.50. Ey

Ocean bottom processes 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    G. Cini Castagnoli, G. Bonino, A. Provenzale andM. Serio:Sol. Phys.,127, 357 (1990).ADSCrossRefGoogle Scholar
  2. [2]
    G. Cini Castagnoli, G. Bonino andA. Provenzale:J. Geophys. Res.,94, 11971 (1989).ADSCrossRefGoogle Scholar
  3. [3]
    G. Cini Castagnoli, G. Bonino, F. Caprioglio, A. Provenzale, M. Serio andN. Bhandari:Geophys. Res. Lett.,17, 1545 (1990).ADSCrossRefGoogle Scholar
  4. [4]
    G. Cini Castagnoli, G. Bonino, F. Caprioglio, A. Provenzale, M. Serio andZhu Guang-Mei:Geophys. Res. Lett.,17, 1937 (1990).ADSCrossRefGoogle Scholar
  5. [5]
    G. Cini Castagnoli, G. Bonino andA. Provenzale: inThe Sun in Time, edited byC. P. Sonett, M. S. Giampapa andM. S. Matthews (University of Arizona Press., 1991) p. 562.Google Scholar
  6. [6]
    G. Cini Castagnoli, G. Bonino, M. Serio andC. P. Sonett:Radiocarbon,34, 798 (1992).CrossRefGoogle Scholar
  7. [7]
    G. Cini Castagnoli, G. Bonino, A. Provenzale, M. Serio andE. Callegari:Nuovo Cimento C,15, 547 (1992).ADSCrossRefGoogle Scholar
  8. [8]
    S. Krishnaswamy, D. Lal, J. M. Martin andM. Meybeck:Earth Planet. Sci. Lett.,11, 407 (1971).ADSCrossRefGoogle Scholar
  9. [9]
    M. Koide, K. W. Bruland andA. D. Goldberg:Geochim. Cosmochim. Acta,37, 1171 (1973).ADSCrossRefGoogle Scholar
  10. [10]
    G. Bonino, G. Cini Castagnoli, A. Longhetto andG. Queirazza:Atti Acad. Sci. Torino, Cl. Sci. Fis., Nat.,113, 255 (1979).Google Scholar
  11. [11]
    G. Bonino, G. Cini Castagnoli andG. Queirazza:Nuovo Cimento C,7, 506 (1984).ADSCrossRefGoogle Scholar
  12. [12]
    R. Santacroce (Editor):Somma-Vesuvius, Quad. Ric. Sci.,114–8, Consiglio Nazionale delle Ricerche, Roma (1987).Google Scholar
  13. [13]
    M. Rosi andA. Sbrana (Editors):Phlegrean Fields, Quad. Ric. Sci.,114–9, Consiglio Nazionale delle Ricerche, Roma (1987).Google Scholar

Copyright information

© Società Italiana di Fisica 1993

Authors and Affiliations

  • G. Bonino
    • 1
    • 2
  • G. Cini Castagnoli
    • 1
    • 2
  • E. Callegari
    • 3
  • Guang-Mei Zhu
    • 2
    • 4
  1. 1.Istituto di Fisica Generale dell'UniversitàTorinoItalia
  2. 2.Istituto di Cosmogeofisica del CNRTorinoItalia
  3. 3.Dipartimento di Scienze Mineralogiche e Petrologiche dell'UniversitàTorinoItalia
  4. 4.University of Science and Technology of ChinaHeifeiChina

Personalised recommendations