GGR112H5 Chapter Notes - Chapter 12: Igneous Rock, Earth Science, Uniformitarianism
Document Summary
Physical geography that studies the development and spatial distribution of. The earth-atmosphere interface is where the endogenic system (internal), powered by heat energy from within the planet, interacts with the exogenic system (external), powered by insolation and influenced by gravity. The most fundamental principle of earth science is uniformitarianism, which assumes that the same physical processes active in the environment today have been operating throughout geologic time. Dramatic, catastrophic events such as massive landslides or volcanic eruptions can interrupt the long-term processes that together to produce earth"s diverse landscape. Knowledge of earth"s endogenic processes helps us understand these slowly shape earth"s surface. The geologic time scale is an effective device for. We have learned about earth"s interior indirectly, from the way its various layers organizing the vast span of geologic time. Geologists assign relative age based on the age of one feature relative to another in sequence, or numerical age acquired from isotopic or other dating techniques.
