Question

Match the following items with the correct descriptions. lithosphere asthenosphere convergent plate boundary divergent plate boundary transform plate boundary Curie point paleomagnetism magnetic reversal magnetometer normal polarity reverse polarity magnetic time scale A. region where rigid plates are moving away from each other B. boundary where plates slide past each other C. the history of magnetic reversals through time D. the natural remnant magnetism in rocks E. temperature above which a material loses its magnetization F. an instrument used to measure Earth's magnetic field G. a magnetic field that is the same as what exists at present H. rigid outer layer of Earth including the crust and upper mantle I. a magnetic field opposite what exists at present J. "weak" layer within the mantle that is easily deformed K. boundary in which two plates move toward each other, often resulting in collision or subduction L. change in the polarity of Earth's magnetic field over time intervals of roughly 200,000 years

Answer 1

A. Divergent plate boundary: region where rigid plates are moving away from each other

B. Transform plate boundary: boundary where plates slide past each other

C. Magnetic time scale: the history of magnetic reversals through time

D. Paleomagnetism: the natural remnant magnetism in rocks

E. Curie point: temperature above which a material loses its magnetization

F. Magnetometer: an instrument used to measure Earth's magnetic field

G. Normal polarity: a magnetic field that is the same as what exists at present

H. Litosphere: rigid outer layer of Earth including the crust and upper mantle

I. Reverse polarity: a magnetic field opposite what exists at present

J. Asthenosphere: "weak" layer within the mantle that is easily deformed

K. Convergent plate boundary: boundary in which two plates move toward each other, often resulting in collision or subduction

L. Magnetic reversal: change in the polarity of Earth's magnetic field over time intervals of roughly 200,000 years