GGR112H5 Chapter 14-17: GGR Notes Ch.14-17
Document Summary
Denudation: any process that wears away or rearranges landforms. Differential weathering: where a more resistant cap rock protects supporting strata below. Hoodoos in the badlands of alberta ^ Tectonic uplift and volcanic activity, build landforms into initial landscapes, whereas exogenic processes tear landforms down, developing sequential landscapes characterized by lower relief, gradual change, and stability. The sun provides radiant energy that converts into heat energy. Uplift of the land by tectonic processes creates potential energy of position as land rises above sea level. Dynamic equilibrium model: ongoing adaptations to the ever changing conditions of local relief, rock structure, and climate. Geomorphic threshold: system lurches to a new operational level. Slopes: curved, inclined surfaces that form the boundaries of landforms. Downslope from the free face is a debris slope, which receives rock arrangements and materials from above. Waning slope: a concave surface along the base of the slope. Slopes are open systems and seek an angle of equilibrium among the forces.
