La signification paléo-impluviométrique des sédiments de la sebkha Mhabeul (Sud-Est de la Tunisie).

La Tunisie du sud-est est une région de climat subaride, située sur la marge Nord du Sahara, proche des « limes » romains, au contact entre les cultures berbères et arabes. La sebkha Mhabeul creusée dans les sables et argiles rouges gypseuses du Mio-Pliocène est un exemple de bassin limnique sans connexion avec l'eau de mer et à impluviomètre limité, alimenté par des apports fluviatiles locaux. Les paysages actuels montrent une végétation de semi-désert avec des plantations d'oliviers où dominent « dry farming » et érosion éolienne. Les sondages dans la sebkha montrent durant l'Holocène supérieur la prédominance des remplissages laminaires (E. Schulz et al., 1995b ; A. Abichou, 2002). L'étude a été réalisée sur plusieurs carottes et des lames minces (format 45 x 60 mm) ont été réalisées et étudiées en continu

Geoarchaeology of the ancient city of Utica (Tunisia) and evolution of the Medjerda delta's palaeoenvironment

International audienc

Geoarchaeology of the ancient city of Utica (Tunisia) and evolution of the Medjerda delta's palaeoenvironment

International audienc

Evolution of the Medjerda delta's palaeoenvironment: Evidence of an intense sedimentation event post 10th c. A.D. near the ancient city of Utica (Tunisia)

International audienc

Geoarchaeology of the ancient city of Utica (Tunisia) and evolution of the Medjerda delta's palaeoenvironment

International audienc

Evolution of the Medjerda delta's palaeoenvironment: Evidence of an intense sedimentation event post 10th c. A.D. near the ancient city of Utica (Tunisia)

International audienc

The distant chant. Climate reconstruction and landscape history. The last two millennia in Southeast Tunisia

A record of laminated sediments of Sebkha Mehabeul in Southeast Tunisia provided a high-resolution environmental archive for the last two millennia. It allowed a detailed reconstruction of the sedimentological evolution, of the mineral environment and hydrological history as well as the vegetation and landscape evolution and of climatic development. The impluvium character of the sebkha allowed it to establish a palaeopluviometric record, as well as the reconstruction of drought and flood periods. A pollen diagram revealed the persistent semi desert environment in the context of a cultural landscape. Despite the resilience of the semi desert ecosystems and periods of favourable climatic episodes the human impact was always strong enough to impede a change to more demanding ecosystems like steppe or woodlands

The Palaeo-geography of the Medjerda delta and the lead palaeo-pollution trapped in the vicinity of Utica (Tunisia): first results

International audienc

Exploration of the maritime façade of Utica: The potential location of the Phoenician and Roman harbours

International audienc