Kinematics and Evolution of Carlantino large landslide (Apulia, Southern Italy)

The relevance of the Carlantino large landslide, located in the Daunian sub-Apennine (Apulia, southern Italy) and extended for nearly 2 km from the hilltop down to the valley, is the presence of the town built-up area in the upper part and of a reservoir on the Fortore River, at the toe. The morphology of the area is affected by different landslides typologies as a consequence of a strong disten- sive tectonics, affecting Plio-Pleistocene sedimentary sequences and flysch formations. The most important points of interest related to the behaviour of the landslide, are the large extent of the land- slide body and the consequently coexistence in the upper, lower and lateral parts of asynchronous strain and stress fields. Temperature and conductivity logs carried out in several boreholes drilled along the slide, al- lowed tracing the preferential groundwater pathways and recognizing the groundwater feeding zones. The last investigation is related to the response, at the toe, of the seasonal changes of the reservoir level, in terms of kinematics and chemical interactions of freshwater with interstitial clay water.