1. Describe an electrical resistivity survey to determine the VERTICAL structure of the subsurface. Explain how the procedure "samples" the earth at different depths.

2. Sketch/describe the gravity anomalies due to a sphere and a horizontal cylinder. Assume the radius of the sphere and the cylinder and the depth to the center of each object is the same. Provide a physically meaningful explanation for the difference(s) between the gravity anomalies.

3. Would gravity be a good technique for mapping a granite intrusion into limestone country rock? Why or why not?

4. Schematically describe the inner workings of a gravimeter.

5. Magnetite is a ferrimagnetic mineral. Give a physically meaningful explanation of a ferrimagnetic mineral.

6. Distinguish among Geographic north pole, Geomagnetic north pole, and magnetic north pole. At which pole, if any, is the earth's magnetic field a maximum value?

7. How is the magnetic method used in archaeology?

8. Is South Louisiana a good location to use Ground Penetrating Radar to image the subsurface? Why or why not?