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APPENDIX 2Glossary of TermsBlanket BogAn extensive accumulation of peat occurring over undulating terrain in both upland and lowland areas where there is a high annualrainfall in excess of 1200mmBoulder ClayA glacial deposit, consisting of striated, subangular stones embedded in firm to very stiff hard clay or rock flourCohesionShear strength of a rock or soil not related to interparticle frictionColluviumA loose, heterogeneous mass of soil/rock fragments deposited by rainwash, sheetwash, or slow continuous downslope creepCorrieA deep steep-walled, half-bowl like depression, situated high on the side of a mountain and commonly at the head of a glaciatedvalley, caused by the erosive activity of a mountain glacierDebrisCoarse-grained soils dominated by material of gravel-size or greater. > 2mm in diameterDiamictPoorly sorted unlithified material exhibiting a wide range of grain sizesDriftAll rock material (clay,silt, sand, gravel, boulders) transported directly by a glacier and deposited by or from the iceEarthFine-grained soils dominated by material of clay to sand-size, in a dry condition. < 2mm in diameterFallA very rapid downward movement of rock or earth that travels mostly through air by free fall, bounding or rolling.FlowA mass movement of material that exhibits a continuity of motion and a plastic or semi-fluid behaviourHard PanA relatively hard, impervious, and often clayey layer of soil lying at or just below the surface, produced as a result of the cementationof particles by precipitation of insoluble materials such as silica, iron oxide, or calcium carbonateHeadA thick, poorly stratified mass of locally derived angular rubble mixed with sand and clay, formed by solifluction in periglacialconditionsIce AgeA time of extensive glacial activity and expansion of icesheets, specifically the latest glacial epoch, the Pleistocene EpochImage spatial resolutionArea that is represented by each individual pixel in an image; the smaller the area, the more accurate and thus detailed the image. Animage with 2m resolution indicates that each pixel covers an area of 2 metres at real scale.LacustrinePertaining to, produced by, or formed in a lakeLandslideThe downslope transport, under gravitational influence, of soil and rock material en masseLandslide HazardThe probability of occurrence within a specified period of time and within a given area, of a potentially damaging landslide event(Varnes, 1984)Landslide RiskThe probability of a landslide event occurring and the cost of the adverse consequences of that landslide eventRisk = Hazard x VulnerabilityLandslide SusceptibilityThe likelihood of occurrence of a landslide event97