GEOL 1001 Chapter : Chapter 1 Notes
Document Summary
Chapter 1 the earth system: discovery of a layered earth an illustration of the scientific method, earth as a system of interacting components, the geologic records , overview of geologic time (deep time, the scientific method. The goal explain how natural phenomena works. Based on methodical observations and experiments to develop a tentative, testable hypothesis (multiple) Develop a scientific model to represent some aspect of nature. The crust: continents are made of lighter rock and thus literally float on material of higher density compositional break (moho) Abrupt changes in density between earth"s major interior layers are caused by. Less dense continental crust floats on denser mantle. Continental crust is less dense than oceanic crust. changes in the chemical composition of those layers. Heating and differentiation of the earth: accretion (kinetic energy addition, compression (gravitational and kinetic addition, radioactive elements (spontaneous decay releases heat)- long-lived heating effect.
