Dating techniques can be applied to determine the age of movements. Geophysical survey methods can describe both the geometrical and geomechanical characteristics of the unstable mass. Trenching and drilling can be used for material characterization, recognition of activity episodes, which can be combined with monitoring data for establishing of warning thresholds and systems. For landslides on other planets a few of these approaches can be adopted making more difficult the interpretation of the phenomena, the identification of triggerings and controlling factors. Study of these instabilities involves geology, geomorphology, geomechanics, hydro-geochemistry, and geophysics. technologies for monitoring and warning systems, and the interpretation of monitoring data. role on the erosional and sediment yield regime in drainage catchments and mountain belts influence of anthropogenic factors and effects on structures passive and/or active control by structural-tectonic elements style and state of past and present activity dating of initial movements and reactivation episodes
presence, distribution and significance of phenomena on other planets Some major aspects of these slope instabilities are still debated: Many types of slope instabilities can be grouped within this broad class, each presenting different types of hazard and risk. Slow to extremely fast moving, complex mass movements have been recognized and sometimes described as strongly interrelated. Large slope instabilities have been recognised in mountainous areas in different lithological and geological domains, and on other planets.
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