JGE378H5 Lecture Notes - Lecture 9: Schist, Permafrost, Periglaciation
Document Summary
Geological: variations in earth materials: weak, sensitive, or weathered materials, shrink-swell and other behaviours, sheared, jointed, or ssured materials, discontinuities (bedding plane, schistosity, fault, lithological contact, etc. , contrast in permeability of materials. Morphological: processes leading to slope changes: tectonic or volcanic uplift, glacial rebound, fluvial, wave, or glacial erosion, subterranean erosion (dissolution) 1: deposition loading on slope or crest, vegetation removal (by re, drought) freeze-and-thaw cycles. Human causes: anthropogenic slope modi cations and triggering actions: excavation or loading on slope or toe drawdown (of reservoirs, deforestation, irrigation, mining; explosions; arti cial vibrations water leakage from utilities. Factors in individual risk perception: scienti c risk barely taken into account. Informational source of information, media coverage, involvement of experts, etc. 2: personal gender, age, education, profession, personal experience, trust in authorities, etc, contextual economic status, vulnerability, family status, country, responsibility for children, home ownership, etc.
