Paleoenvironmental signficance of C an O isotopic signal in Last Interglacial gastropod dendropoma shell concentrations from Canary (Spain) and Sal (Cape Verde) Islands

  1. J. A. González-Delgado 1
  2. C. Zazo 2
  3. J. L. Goy 1
  4. J. Civis 1
  5. J. Templado 2
  6. M. Calvo 2
  7. C. J. Dabrio 3
  1. 1 Universidad de Salamanca
    info
    Universidad de Salamanca

    Salamanca, España

    ROR https://ror.org/02f40zc51

    Geographic location of the organization Universidad de Salamanca
  2. 2 Museo Nacional de Ciencias Naturales
    info
    Museo Nacional de Ciencias Naturales

    Madrid, España

    ROR https://ror.org/02v6zg374

    Geographic location of the organization Museo Nacional de Ciencias Naturales
  3. 3 Universidad Complutense de Madrid
    info
    Universidad Complutense de Madrid

    Madrid, España

    ROR https://ror.org/02p0gd045

    Geographic location of the organization Universidad Complutense de Madrid
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Journal:
Revista de la Sociedad Geológica de España

ISSN: 0214-2708

Year of publication: 2005

Volume: 18

Issue: 3-4

Pages: 207-211

Type: Article

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Abstract

We study the paleoenvironmental significance of the C and O isotopes of the irregular coiled gastropod Dendropoma, a remarkable biological marker of mean sea level, of sediments aged as Last Interglacial from Fuerteventura and Lanzarote (Canary Islands, Spain), and from the Sal Island (Cape Verde). Recent Dendropoma sp. from the Sal Island and D. petraeum from Cabo de Palos (Murcia, Spain) are also utilized. Range of results generally is lower than 1 ‰, both for the C and O, except for the ä18O in Cabo de Palos (2,09%o), and for the ä13C from Fuerteventura (3,57%o). Differences between ä18O shells of the Last Interglacial (LI) from Fuerteventura with respect to that of Cape Verde, if salinity do not changed, probably reflects differences of 3-4 ºC in the sea surface temperature (SST), similar to the Recent. In Sal Island, if salinity and ice-volume do not changed, the difference between SST of the LI and Recent probably was of 2 ºC.

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