Chapter 17

An online crossword puzzle with 12 words. Play it free at AgileCrosswords.com.

Clues

place where two of Earth's tectonic plates are moving toward each other
Hess's theory that new ocean crust is formed at mid-ocean ridges and destroyed at deep sea trenches
proposed that Earth's continents had once been joines as a single landmass
device used to map the ocean floor that detects small changes in magnetic fields
process by which one tectonic plate slips beneath another tectonic plate
line on a map that connects points of the same age
change in Earth's magnetic field over geologic time, recorded in ocean-floor rocks and continental b
place where two tectonic plates slide horizontally past each other that is characterized long faults
long, narrow depression that forms when continental crust begins to seperate at a divergent boundary
tectonic process associated with convection currents in Earth's mantle that occurs when the weight o
tectonic process associated with convection currents in Earth's mantle that occurs as the weight of
ancient landmass made up of all the continents that began to break apart about 200 million years ago