Exam 27: the Earths Interior, revisited: Seismic Layering, gravity, and the Magnetic Field

A positive magnetic anomaly is produced when the measured magnetic field strength is ________ the expected magnetic field strength.

If a ship towing a magnetometer passes over a piece of crust with a "normal" polarity,what will the magnetic anomaly look like?

In the picture below,when the ship is filled with cargo it sinks into the water until the mass of water displaced is equal to the mass of the cargo.The ship is then said to be ________.

Earth's magnetic field is produced in the ________.

If a seismic wave is refracted upward at a boundary,what can be said about the material the wave is traveling through?