Chapter 2, section 4: Maps in Earth Science
Vocabulary:
1. relief: variations in elevation of a land surface.
2. elevation: the height of an object above sea level.
3. topographic map: a representation of the surface features of
Earth.
4. contour interval: the difference in elevation between one
contour line and the next.
5. index contour: a darker, heavier contour line used to make a
map easier to read.
6. geologic unit: a rock of a given type and age range.
7. contour lines: a line that connects points of equal elevation.
They are normally are in brown.
8. geologic map: a map that shows the distribution of geologic
features in a given area. The map shows rock units, mineral
deposits, and fossil localities.