SPECTRAL ANALYSIS BASED ON DATA OF DIFFERENT GEOCHEMICAL PARAMETERS OF A CORE FROM SEBKHA ENNOUAL, SOUTHEASTERN TUNISIA: HOLOCENE SUN-DRIVEN CYCLOSTRATIGRAPHY

Main Article Content

ELHOUCINE ESSEFI
SOUMAYA HAJJI
SANA BEDOUI

Abstract

The aim of this work is to investigate the sedimentary cycles recorded along a 160 cm core carried out at the Ennoual wetland. Sampling had taken place every 2 cm in order to reucperate 80 samples. The Holocene cyclostratigraphy is controlled by the solar activity. It is Sun-driven. The spectral analysis visualizes obvious cycles probably having astronomical, atmospheric and oceanographic origins. On the one hand, based on the spectral analysis of Na and K values, millennial cycles of ≈ 2500 yr, and 1000 yr related to solar forcing are found out. On the other hand, the 1500 yr cycle is related to thermohaline circulation is extracted from the spectral analysis of Ca values.

Keywords:
Magnetic susceptibility, cyclostratigraphy, geochemistry, sebkha Ennoual, southeastern

Article Details

How to Cite
ESSEFI, E., HAJJI, S., & BEDOUI, S. (2022). SPECTRAL ANALYSIS BASED ON DATA OF DIFFERENT GEOCHEMICAL PARAMETERS OF A CORE FROM SEBKHA ENNOUAL, SOUTHEASTERN TUNISIA: HOLOCENE SUN-DRIVEN CYCLOSTRATIGRAPHY. Journal of Global Ecology and Environment, 16(2), 1-6. Retrieved from https://ikpresse.com/index.php/JOGEE/article/view/7665
Section
Original Research Article

References

Martinez-Ruiz F, Kastner M, Gallego-Torres D, Rodrigo-Gámiz M, Nieto-Moreno V, Ortega-Huertas M. Paleoclimate and paleoceanography over the past 20,000 yr in the Mediterranean Sea Basins as indicated by sediment elemental proxies. Quaternary Science Reviews. 2015;107:25-46.

Essefi E, NajouaGharsalli, Sonia Salhi, ChokriYaich,. Cyclicity of Grain Size Parameters along a Core from the Gleysol of Sebkha Ennoual, Southeastern Tunisia. Journal of Basic and Applied Research International; 2015d.

Essefi E. Apport des Approches Géochimique et Sédimentologique au Fonctionnement des Systèmes Endoréiques et Exoréiques de l'Holocène à l'Anthropocène: Intérêts Environnemental et Géoéconomique. Institut Supérieur des Sciences et Techniques des Eaux de Gabès. Habilitation Universitaire; 2021a.

Davies FJ. Modelling the freshwater cycle of the Arctic Ocean and North Atlantic during the Holocene; 2021.

Gammoudi A, Essefi E, Rigane H. Variability of the grain-sized fractions during the last three millennia within the sedimentary fillings of the saline system of Mhabeul: the Holocene cyclostratigraphy. Arabian Journal of Geosciences. 2019 ;12(9) : 1-11.

Gammoudi A. « Etude géochimique et cyclostratigraphie holocène des sédiments de la sebkhaMhabeul au Sud-Est de la Tunisie ». PhD Thesis. Higher Institute of Applied Sciences and Technology of Gabes; 2020

Essefi E, Yaich C. The magnetic susceptibility as tool for environmental and paleoenvironmental prospections: case study coast of Sfax, southern Tunisia. IGCP 580, 4th Annual Meeting; 2012.

Essefi E, Mefteh S, Medhioub M, Yaich C. Magnetic study of the heated and unheated sedimentary fillings of SebkhaMhabeul, Southeast Tunisia: A geophysical method for paleoclimatic investigation and tephrochronological dating. International Journal of Geophysics; 2014.

Millot C, Taupier-Letage I. Circulation in the Mediterranean sea. In The Mediterranean Sea (pp. 29-66). Springer, Berlin, Heidelberg; 2005.

Mimeau L, Tramblay Y, Brocca L, Massari C, Camici S, Finaud-Guyot P. Modeling the response of soil moisture to climate variability in the Mediterranean region. Hydrology and Earth System Sciences. 2021;25(2), 653-669.

Marquer L, Pomel S, Abichou A, Schulz E, Kaniewski D, Van Campo E. Late Holocene high resolution palaeoclimatic reconstruction inferred from SebkhaMhabeul, southeast Tunisia. Quaternary Research. 2008;70(2), 240-250.

Rouina SB, Bassetti MA, Touir J, Trabelsi K, Berne S. Sedimentary and microfaunal evolution in the Quaternary deposits in El Akarit river mouth (Gulf of Gabes, Tunisia): Paleo-environments and extreme events. Journal of African Earth Sciences. 2016;121:30-41.

Zaîbi C, Carbonel P, Kamoun F, Azri C, Kharroubi A, Kallel N, Jedoui Y, Montacer M, Fontugne M. (). Évolution du trait de côte à l’Holocène supérieur dans la Sebkha El-Guettiate de Skhira (Golfe de Gabès, Tunisie) à travers sa faune d’ostracodes et de foraminifères. Geobios. 2011;44(1):101-115.

Press WH, Teukolsky SA, Vetterling WT, Flannery BP. Numerical Recipes in C. Cambridge University Press; 1992.