Faculty of Sciences of Sfax
GEOGLOB
Georesources, Materials,
Environment
and Global Change
Faculty of Sciences

Organic Geochemistry

Group Overview

The main research activities focus on the geochemistry of petroleum source rocks. Our work encompasses the comparative diagenesis of clay minerals and organic matter, as well as lead-zinc mineralization processes. Applications of molecular geochemistry enable the development of models for the establishment of anoxic conditions in sedimentary basins, the investigation of organic matter diagenesis in relation to the preservation/productivity balance, and the identification of specific biomarkers indicative of redox conditions and primary organic productivity. Molecular correlations between crude oils and source rocks provide the foundation for the identification and characterization of petroleum systems.

Our research integrates organic geochemistry with mineral geochemistry (major and trace elements) and the isotopic geochemistry of both organic and inorganic carbon. Advances in the characterization of source-rock organic matter—including its origin, thermal maturity, and geographic distribution—contribute significantly to global models of anoxic-event development in sedimentary basins across the Atlantic region, Europe, and the Americas. The study of organic matter is of considerable economic importance because of its role as the source material for both conventional energy resources (oil and natural gas) and unconventional resources (shale gas and oil shale), while also providing valuable scientific and academic insights into Earth system processes.

Research Areas

  • Evaluation of the petroleum potential of sedimentary basins through organic geochemistry
  • Modeling of petroleum and natural gas generation and migration
  • Reconstruction of the thermal history of sedimentary basins
  • Investigation of diagenetic fluid composition and porosity distribution in reservoir rocks
  • Exploration of unconventional energy resources (shale gas and oil shale)

Teaching Areas

  • Organic Geochemistry & Petroleum Systems
  • Petroleum Geochemistry & Source-Rock Geochemistry
  • Thermodynamics and Petroleum Reservoir Fluids
  • Petroleum Systems and Hydrocarbon Fields of Tunisia
  • Hydrocarbon Geology & Energy Georesources
  • Thermal Modeling of Source Rocks
  • Geological Field Trips and Excursions (Central Tunisia, North–South Axis, North-Central and Southern Tunisia)

Illustrations & Group Activities

Contact Information

Group Leader

Hassene AFFOURI (Professeur)

Phone

+216 98 656 702

Cooperation

ONM, ETAP, Université de Grenoble (ISTerre), Université de Ferrara, IST Orléans (BRGM)

Students Trained

  • Asma Bouallagui
  • Sihem Rmili
  • Amina Ammous
  • Sana Ahmed
  • Monia Ben Ammar
  • Khaoula Zerai
  • Zina Khalifa
  • Ibtihel Yahyaoui
  • Alia Ben Aîch
  • Sabrine Belhaj Mohamed
  • Saida Khlifi
  • Marwa Besbes-Kossentini
  • Dhaou Akrout