EARTH121 Chapter Notes - Chapter 1: William Edmond Logan, Geologic Time Scale, Geologic Hazards
4 Oct 2016
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Physical geology: examines materials to gain an understanding of earth"s processes. Historical geology: understanding the origin of earth and it"s development. Much of geology is based on observation and experiments in out-crops (surface exposed bedrock) Did work in: gasp peninsula, ottawa river, great lakes. Natural hazards: volcanoes, oods, earthquakes etc: all are natural processes that become hazards when people try to live where they occur. Resources: foundation of modern civilization: geology = maintenance, formation, and occurrence of these resources. Rapid world growth and standard of living means an increased demand of resources and a growing pressure for people to live in environments that have signi cant geologic hazards. Catastrophism (17th century, james ussher): earth"s landscapes were shaped by great catastrophes: large religious impact to this theory. !1: did not realize the age of the earth. Uniformitarianism (18th century, james hutton): forces and processes that we.
