Objectives
This section will help you to:
- use the geologic time scale to understand Earth history;
- identify the key geologic time periods;
- differentiate “human time” from “geologic time;”
- distinguish the rates of geologic processes;
- list the evidence for geologic time;
- identify relationships between plate tectonics and geologic time;
- describe the internal structure and processes of Earth;
- identify the mechanism of plate tectonics;
- describe and give examples of types of plate boundaries;
- list the evidence to support the theory of plate tectonics;
- understand isostasy as it relates to the movement at plate boundaries; and
-
describe how the three Rock Laws relate to plate tectonics and geologic time.
If you would like a guide to help you to achieve these learning objectives for this module, please click here for an “Objective Guide.”
This is what the earth looked like 94 million years ago when the dinosaurs roamed the earth in the Cretaceous time period. You will learn more about how plate tectonics changed the face of the earth. (PALEOMAP Project, 2003)