GL102 Chapter : Geology 101
Document Summary
Spatial arrangement of features on earth: global distribution of oceans and continents: continental drift, plate tectonics. Stratigraphic arrangement of earth materials (minerals and rocks: oldest to youngest: absolute vs. relative age. Uniformitarianism: the present is the key to the past. Physical geology: examines the materials composing earth to gain an understanding of the surface. Historical geology: understand the origin of earth and its development throughout time. Information comes from outcrops: where bedrock is exposed at the surface, the study of carious earth materials provides insight into many basic processes. Natural hazards: volcanoes, floods, earthquakes, landslides, tsunami. Catastrophism: mid seventieth century, earth"s landscapes had been shaped primarily b great catastrophes, mountains and canyons, explained as having been produced by sudden and often worldwide disasters produced by unknown causes that no longer operate. Uniformitarianism: the present is the key to the past, implies the operation of timeless, changeless laws or principles.
