Evolution of Korba Lagoon (Cap Bon, Tunisia) During the Last Millennia Based on the Analysis of Foraminiferal Assemblages

  • Asma Ben HamadEmail author
  • Chahira Zaïbi
  • Martin R. Langer
  • Fekri Kamoun
Conference paper
Part of the Advances in Science, Technology & Innovation book series (ASTI)


The quantitative study of foraminiferal associations coupled with geochemical and sedimentological proxies, of a 94-cm sediment core from Korba lagoon (Cap Bon, Tunisia), enabled us to better understand the dynamics of depositional environments and identify different stages of evolution of the lagoon. Three major periods were identified. The first revealed high abundance of foraminifera dominated by lagoonal taxa associated with high TOC, TIC and Ca contents. These parameters marked the settlement of a closed lagoon separated from the open ocean by a sandy bar with high foraminiferal productivity in fine sediments. The second period showed the development of estuarine foraminifera coupled with the appearance of charophyte oogonia in addition to planktonic foraminifera, high Ti and Fe concentrations and dominant coarse fraction. These parameters are indicative of an open lagoon environment with the fluvial inputs. The disappearance of charophyte oogonia and planktonic foraminifera coupled with the enrichment of marine taxa marked the opening of our lagoon to the sea. The progressive modification of foraminiferal association revealed by the increase of lagoonal species and the decrease of estuarine taxa prove the settlement of the present-day lagoon conditions.


Korba lagoon Foraminiferal associations Palaeoenvironment 


  1. 1.
    Bouden, S., Chaabani, F., Abdeljaoued, S.: Dynamique sédimentaire de la lagune de Korba (NORD-EST de la Tunisie). Quaternaire 20(2), 227–237 (2009)CrossRefGoogle Scholar
  2. 2.
    Cimerman, F., Langer, M.R.: Mediterranean Foraminifera, 119 pp. Slovenska Academia Znanosti in Umetnosti, Ljubljania (1991)Google Scholar
  3. 3.
    Langer, M.R., Schmidt-Sinns, J.: The 100 Most Common Foraminifera from the Bay of Fetovaia, Elba Island (Mediterranean Sea). Monographie im Selbstverlag. Institut für Paläontologie, Universität Bonn, 37 pp, 15 pls (2006)Google Scholar
  4. 4.
    Birks, H.H., Peglar, S.M., Boomer, I., Flower, R.J., Ramdani, M., Appleby, P.G., Bjune, A.E., Patrick, S.T. and Kraïem, M.M. with contributions from Fathi, A.A., Abdelzaher, H.M.A.: Palaeolimnological responses of nine North African lakes in the CASSARINA Project to recent environmental changes and human impact detected by plant macrofossil, pollen, and faunal analyses. Aquat. Ecol. 35, 405–430 (2001)Google Scholar
  5. 5.
    Bouden, S., Chaabani, F., Abdeljaoued, S.: Caractérisation géochimique des sédiments superficiels de la lagune de Korba (Cap Bon, Nord-Est de la Tunisie). Geo-Eco-Trop 28(1–2), 15–26 (2004)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Asma Ben Hamad
    • 1
    Email author
  • Chahira Zaïbi
    • 1
  • Martin R. Langer
    • 2
  • Fekri Kamoun
    • 1
  1. 1.Geoglob Laboratory, Faculty of SciencesSfax UniversitySfaxTunisia
  2. 2.Steinmann Institut für Geologie, Mineralogie und PaläontologieRheinische Friedrich-Wilhelms Universität BonnBonnGermany

Personalised recommendations