1. Geologic Maps Geologic Principles Original horizontality Superposition
Cross Cutting

2. Angular Unconfromity
Angular Unconformity Page 52

3. Relative Dating - Geologic Column Page 54

4. Geologic Structures Fault Page 55

5. Geologic Structures Page 56
Anticline
Syncline
Dome
Basin

6. Geologic Maps Rock types and their distribution Show Bird's Eye View
How Maps are made
Topo Map base
Outcrops (rock exposed at the earth’s surface)
Draw contacts

7. Geologic Map Parts Formation
A rock unit distinct from rock above and below
e.g.
Color and Symbols represent different formations
Orange Formation in Northern Illinois
Symbol
Stratigraphic Column
Cross Section