Transport mechanisms and depositional processes of quaternary slope deposit in Rebrnice area

Abstract

In order to understand the gravity process of recent landslides it is important to explore fossil\ud landslides, which occurred during the near and distant geological past. Fossil, especially sub recent\ud landslides can show us unstable and potentially dangerous areas to which we should pay attention\ud today. A unique insight into different slope processes in nature is certainly Rebrnice area, where you\ud can research the characteristics of the fossil landslides while observing the activity of the recent\ud landslidess. The slope deposit in the Rebrnice area were described and mapped by many authors but\ud nobody has covered the transport mechanisms and depositional processes of quaternary slope deposit\ud in detail. This doctoral thesis presents the study of slope deposit elaborated with the geologicalgeomorphological\ud approach. With the visual interpretation of the shaded digital elevation model and\ud indicator of surface roughness, which are calculated from the data of airborne laser scanning in the\ud combination of geological mapping, we can in most cases clearly identify the form of the prevalence\ud and surface characteristics of individual sedimentary bodies. On the basis of the lithological,\ud stratigraphic and architectural characteristics of the slope deposit 16 facies were separated, indicating\ud the final articles of diverse sedimentary processes within complex and often interlaced and\ud interdependent transport mechanisms. Results described in this work, and a comprehensive review of\ud the available data and literature have made it possible to understand the transport mechanisms and the\ud depositional processes of quaternary slope deposit in the Rebrnice area and thereby allow new insight\ud into slope movement throughout the northern area of the Vipava Valley