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Holocene Paleoclimatic Variation Inferred from Study of Sediments in the Gulf of Tunis (North Africa)

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Patterns and Mechanisms of Climate, Paleoclimate and Paleoenvironmental Changes from Low-Latitude Regions (CAJG 2018)

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Abstract

The lithological study of sediments from a 30 m length core, taken at the western part of the lake of Tunis, combined with the study of benthic macrofauna, helped to identify the different stages of evolution of this ecosystem and the associated climatic fluctuations throughout the period spreading the Tardi Würm (about 42,000 years) to the Holocene. The sedimentological study allowed distinguishing six main facies characterizing different depositional environments. The identification of the mineralogical composition of the Holocene sediments of the upper part of the core, helped to note presence and dominance of two main minerals detected in all samples which are Quartz and Calcite. The determination of TOC contents in samples of Holocene sediments shows the existence of three levels: a surface level with high TOC values (reaching 5.1%), a second level at which values decrease gradually (around 1.1%) and the bottom level with sandy sediment record values <1%.

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Author information

Authors and Affiliations

  1. Faculty of Science of Tunis, University Tunis El Manar, Tunis, Tunisia

    Nizar Ouertani & Soumaya Yahyaoui

Authors
  1. Nizar Ouertani
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  2. Soumaya Yahyaoui
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Corresponding author

Correspondence to Nizar Ouertani .

Editor information

Editors and Affiliations

  1. Climate Modelling Laboratory, Department of Applied Mathematics, Shandong University, Jinan, China

    Zhihua Zhang

  2. Springer Nature, Heidelberg, Baden-Württemberg, Germany

    Nabil Khélifi

  3. Norwegian Meteorological Institute, Oslo, Norway

    Abdelkader Mezghani

  4. University of Southern California, Los Angeles, CA, USA

    Essam Heggy

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Ouertani, N., Yahyaoui, S. (2019). Holocene Paleoclimatic Variation Inferred from Study of Sediments in the Gulf of Tunis (North Africa). In: Zhang, Z., Khélifi, N., Mezghani, A., Heggy, E. (eds) Patterns and Mechanisms of Climate, Paleoclimate and Paleoenvironmental Changes from Low-Latitude Regions. CAJG 2018. Advances in Science, Technology & Innovation. Springer, Cham. https://doi.org/10.1007/978-3-030-01599-2_9

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