ROQ 5 Flashcards
1
Q
A negative anomaly occurs when:
A
seafloor rock has the opposite polarity as the earths current magnetic field
2
Q
Accretionary prisms form due to what process?
A
Subduction
3
Q
Magnetic ______ is the angle between the magnetic field and the surface of the earth. Magnetic ______ is the angle between the direction in which compass needle points and a line of longitude at a given location
A
inclination, declination
4
Q
Sediment such as sand, clay, and plankton that has accumulated on the ocean floor near a subduction zone can be scraped off the plate as it is subducted to form an ______ ____.
A
accretionary prism
5
Q
The lithosphere consists of the _______ as well as the ______ part of the ________.
A
crust, upper, mantle
