Tectonic Plates & Deformation of the Crust Crossword

a phenomenon of the plate tectonics of Earth that occur at convergent boundaries
The gradual movement of the continents across the Earth's surface through geological time.
a crack in the Earth's crust
The block of rock that lies on the underside of an inclined fault or of a mineral deposit
The block of rock that lies above an inclined fault or an ore body
The point of the Earth's surface vertically above the focus of an earthquake
a number that characterizes the relative size of an earthquake
an elastic wave in the Earth produced by an earthquake or other means
a change in the earths magnetic field resulting in the magnetic north being aligned with the geographical south and vice versa
a volcano built up of many layers of hardened lava, tephra, pumice, and volcanic ash
longitudinal earthquake wave that travels through the interior of the earth and is usually the first conspicuous wave to be recorded by a seismograph
a wave motion in a solid medium where the medium moves perpendicular to the direction of the travel of the wave
a long seismic active submarine ridge system situated in the middle of an ocean basin and marking the site of he up welling of magma associated with seafloor spreading
vertical fractures where the blocks have mostly moved horizontally
slow creeping motion of Earths solid silicate mantle caused by convection currents carrying heat from the interior of the earth to the surface
a numerical scale for expressing the magnitude of an earthquake on the basis of seismograph oscillations
a major area in the basin of the pacific ocean where a large number of earthquakes and volcanic eruptions occur
a steep hill consisting of glassy volcanic fragments accumulate around and downwind from a volcanic vent
the central or innermost portion of the earth
the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock