Despite longstanding research on the age and formation of the Tibetan Plateau, the controls on the erosional decay of its margins remain controversial. Pronounced aridity and highly localized rock uplift have traditionally been viewed as limits to the dissection of the plateau by bedrock rivers. Recently, however, glacier dynamics and landsliding have been argued to retard headward fluvial eros...

Abstract. Rockslides and rock avalanches are amongst the most destructive natural hazards in alpine environment. The Flims rockslide is largest known rock-slope failure Alps, which provides excellent outcrops has fascinated researchers since early 20th century. postulated impact of on Lake Bonaduz caused intensely fluidized material, formed Formation toma hills, probably accompanied by a catast...

Abstract. Glacier detachments are a rare, but hazardous, phenomenon of glacier instability, whereof only handful have been documented to date. Common all known cases is that many million cubic meters ice detached from the bed relatively low-angle valley glaciers and turned into long-runout mass flows. Recently, two such were observed in Petra Pervogo range Tajikistan. Using variety satellite im...

During hazardous geophysical mass flows, such as rock or snow avalanches, debris flows and volcanic pyroclastic a continuous exchange of material can occur between the slide bed. The net balance erosion deposition particles drastically influence behaviour these flows. Recent advances in describing non-monotonic effective basal friction internal granular rheology depth averaged theories have ena...

Natural disasters threaten the humans from time immemorial. They are caused both by the processes in the Earth core and Earth surface, or in the atmosphere, and by the processes in the vicinity of the Planet. From the current knowledge it follows that in human system various phenomena take place in the development process that are the expression of its development or of the development of syste...

The impact-induced fragmentation of rock blocks is frequently encountered when the natural hazards (e.g., rockfalls, rockslides, and avalanches) occur in mountainous areas. To address progressive damage cracking characteristics upon impacting, this paper presents a three-dimensional finite-discrete method (3D-FDEM) study on complex process rock. influences impact velocity dynamic process, evolu...

At 14:28 (Beijing time) on 12 May 2008, the catastrophic Ms 8.0 Wenchuan earthquake occurred just west of the Sichuan basin, China, causing severe damage and numerous casualties. It also triggered a large number of landslides, rock avalanches, debris flows etc. Some of the landslides formed natural dams in the rivers, with the potential secondary hazard of subsequent flooding. Through the inter...

Rock/ice avalanches are complex gravitational flows involving three important physicalprocesses: entrainment, phase-changes, and flow transitions. The basic complexity of modelling rock/ice lies in the fact that is a mixture rock, ice, water, snow, soil sediments. interaction these components can lead to transitions which difficult model with simplified rheologies. For example, initially compos...