Podcast
Questions and Answers
What shape would you get if you ran around the base of a pyramid?
What shape would you get if you ran around the base of a pyramid?
What is true about contour lines on hills and mountains?
What is true about contour lines on hills and mountains?
What do hachures represent on a topographic map?
What do hachures represent on a topographic map?
What is a common feature of a geologic map?
What is a common feature of a geologic map?
Signup and view all the answers
What do black markings typically represent on a geologic map?
What do black markings typically represent on a geologic map?
Signup and view all the answers
What do different colors typically represent on a geologic map?
What do different colors typically represent on a geologic map?
Signup and view all the answers
What do reds and oranges usually represent on a geologic map?
What do reds and oranges usually represent on a geologic map?
Signup and view all the answers
What do patterns on a rock type typically indicate on a geologic map?
What do patterns on a rock type typically indicate on a geologic map?
Signup and view all the answers
What do pink rocks with circles on them on a geologic map typically represent?
What do pink rocks with circles on them on a geologic map typically represent?
Signup and view all the answers
What is the purpose of the key or legend on a geologic map?
What is the purpose of the key or legend on a geologic map?
Signup and view all the answers
Study Notes
Topographic Maps
- A topographic map is a type of map that shows elevation and is used by people like hikers who need to know the elevation of an area.
- Topographic maps show contour lines, which connect points of equal elevation, similar to the lines on a banana split sundae.
- Contour lines on a map are typically shown in a light brown color.
Contour Lines
- Contour lines show elevation, with each line representing a different elevation.
- Index contours display the exact elevation of one specific line.
- Index contours are usually labeled in two or three places on the map to avoid clutter.
Contour Rules
- Contour lines cannot cross, as this would mean a location has two different elevations, which is not possible.
- Contour lines form circles around hills or depressions.
Contour Intervals
- The contour interval is the distance between any two side-by-side lines.
- For example, a contour interval of 10 means that each line represents a 10-foot elevation change.
Hills and Depressions
- Contour lines close around hills and depressions, forming concentric circles.
- Lines get closer together on steep hills and farther apart on gentle slopes.
Hachures
- Hachures are small lines that show depressions or holes on a topographic map.
- Hachures resemble teeth in an open mouth and indicate a dip or bowl shape in the landscape.
Geologic Maps
- Geologic maps are similar to topographic maps but include additional information, such as the age and type of rocks.
- Geologic maps show topographic lines, ages, and types of rocks.
- Colors on a geologic map represent different types of rocks or ages of rocks, with different colors used for igneous, metamorphic, and marine-formed rocks.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Learn about topographic maps and how to read and understand them. This quiz uses a fun analogy of a banana split to explain the concept of topographic maps.
