Earth Sciences 1022A/B Chapter Notes -Silicate Minerals, Volcano, Pyroclastic Flow
14 Sep 2013
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Geology science that examines earth, its form and composition, and the changes that it has undergone and undergoing. Physical geology a major division of geology that examines the materials of earth and seeks to understand the processes and forces acting beneath and on earth"s surfaces. Historical geology a major division of geology that deals with the origin of earth and its development through time. Usually involves the study of fossils and their sequence in rock beds. Outcrops where bedrock is exposed at the surface. Geologic hazards are natural processes, they become hazards when people decide to live there. Resources endowment of materials held in reserve that are useful to people and are ultimately available commercially. Catastrophism the concept that earth was shaped catastrophic events of a short-term nature. Uniformitarianism the physical, chemical, and biologic laws that operate today have also operate today have also operated in the geologic past.
