Understanding the Stereo Net

The video tutorial explains the use of a stereo net, a tool for plotting 3D data onto a 2D surface. It covers the structure of the stereo net, including the Lambert net, great circles, and the equator. The tutorial details how to read strikes, bearings, and dips, and how to plot planes and lines. The stereo net is compared to the Earth's latitudinal and longitudinal lines, and its practical applications in geology are highlighted.

What is the primitive circle on a stereo net?

• A circle representing the South Pole

• The outline of the stereo net

• A circle representing the equator

• A circle representing the North Pole

What do the great circles on the stereo net represent?

• The North-South line

• The equator

• Lines of longitude

• Lines of latitude

What is the significance of the small circles on the stereo net?

• They represent the North-South line

• They represent the equator

• They represent lines of latitude

• They represent lines of longitude

How are strikes and bearings read on the stereo net?

• Counterclockwise from the North Pole

• Clockwise from the North Pole

• Clockwise from the South Pole

• Counterclockwise from the South Pole

What is the purpose of using a stereo net?

• To plot 3D data onto a 3D surface

• To plot 1D data onto a 2D surface

• To plot 3D data onto a 2D surface

• To plot 2D data onto a 3D surface

How are divisions from 0 to 360 degrees marked on the stereo net?

• By the points where great circles cut the equator

• By the points where small circles cut the primitive circle

• By the points where great circles cut the primitive circle

• By the points where small circles cut the equator

Where are dips measured from on the stereo net?

• From the equator to the South Pole

• From the primitive circle to the center

• From the center to the primitive circle

• From the equator to the North Pole

How are measurements of dip to the west taken on the stereo net?

• On the equator to the south of the East-West line

• On the equator to the north of the East-West line

• On the equator to the west of the North-South line

• On the equator to the east of the North-South line

What transformation occurs when plotting planes on a stereo net?

• Planes become points

• Planes become lines

• Planes become arcs

• Planes become circles

What transformation occurs when plotting lines on a stereo net?

• Lines become circles

• Lines become points

• Lines become planes

• Lines become arcs