Earth Sciences 1022A/B Lecture Notes - Lecture 1: Continental Shelf, Geosphere, Uniformitarianism

• School: Western University
• Department: Earth Sciences
• Course: Earth Sciences 1022A/B
• Professor: Stephen R Hicock

Document Summary

Earth sciences 1022a lecture brief 13 sep 16. Geology (study of earth) is important for energy and natural resources, solving environmental problems, building cities and highways, predicting and protecting against natural disasters like earthquakes, volcanic eruptions, landslides, floods. Uniformitarianism: fundamental principle the present is the key to the past . How long? geologic time is measured in billions of years. Within the disc, earth evolved through many collisions of rocky and metallic fragments into a rocky sphere divided into a dense core, large mantle, and lighter crust.