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Geological investigation and optical dating of Quaternary siliciclastic sediments near Apalachicola, North-west Florida, USA

BURDETTE, KEVIN E. ; RINK, WILLIAM J. ; LÓPEZ, GLORIA I. ; MALLINSON, DAVID J. ; PARHAM, PETER R. ; REINHARDT, EDUARD G.

Sedimentology, 2012-10, Vol.59 (6), p.1836-1849 [Periódico revisado por pares]

Oxford, UK: Blackwell Publishing Ltd

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  • Título:
    Geological investigation and optical dating of Quaternary siliciclastic sediments near Apalachicola, North-west Florida, USA
  • Autor: BURDETTE, KEVIN E. ; RINK, WILLIAM J. ; LÓPEZ, GLORIA I. ; MALLINSON, DAVID J. ; PARHAM, PETER R. ; REINHARDT, EDUARD G.
  • Assuntos: Ground penetrating radar ; Marine ; optically stimulated luminescence
  • É parte de: Sedimentology, 2012-10, Vol.59 (6), p.1836-1849
  • Notas: ArticleID:SED1328
    istex:83BE3E3EE498406C7F1C28796EB616979FCA38DC
    ark:/67375/WNG-8MTCFPCL-C
    Present address: 903 W. Tennessee St Tallahassee, FL 32304, USA.
    ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Ground penetrating radar and single‐aliquot regenerative‐dose optically stimulated luminescence were used to determine the depositional environments and age of unconsolidated siliciclastic sediments near Apalachicola, Florida. Five direct‐push cores, five vibracores and 28 optically stimulated luminescence samples were collected, as well as 7 km of ground penetrating radar data. A new model of cosmic dose rate calculation, which removes the effect of a much younger aeolian cap, was utilized to calculate more representative optically stimulated luminescence ages. Five radar facies were identified based on reflector amplitude and orientation. The resulting data indicate that the Tertiary/Quaternary Shelly Sediments were deposited before marine isotope stage 6, the Quaternary Alluvium was deposited during marine isotope stage 6 and the Quaternary Beach Ridge and Dune was deposited during the marine isotope stage 5e sea‐level highstand, which peaked at approximately 2·5 m above present sea‐level in this area.
  • Editor: Oxford, UK: Blackwell Publishing Ltd
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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