GEOG 2051 Lecture : Sept 9th Notes
Document Summary
Concepts continued: closed not really in earth sciences, open: equilibrium threshold steady state. Steady state moving towards equilibrium but not really changing. Endogenic processes form inside of the earth. Exogenic forms outside of the earth say climate. Rock type (as stage for action) defines what land form will look like. Pleistocene age (2. 5 million years) and influence most of the earths topography no older than pl. Endogenic: earth movements: folding, faulting, volcanic eruptions, basalt, magma. Exogenic: weathering, rock break down, erosion: pick up (wind, water, ice, transport, deposition: wind, water, ice. Three major classes of rocks: igneous, sedimentary, and metamorphic. Tectonic activity, eustatic (world wide change in sea level, coming and going of glaciers), isostatic the continents float on the mantle below. Isostasy the vertical positioning of the crust so that gravitational and buoyant forces balance one another.
