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weaker, semi-solid, plastic-like layer beneath Earth's lithosphere on which lithospheric plates move
Cinder cone volcano
small, violently erupting volcano formed by accumulation of large pyroclastic materials around a vent
large volcano formed by alternating lava flows and violently erupting pyroclastic materials
sudden energy release that accompanies fault movement and causes earthquakes, or seismic vibrations
a system of twin mountain ranges with a rift valley between them that extends around Earth on the sea-floor; formed where two oceanic plates are force apart due to magma rising from Earth's mantle; a source of new rock
long, linear, dropped-down valley between twin, parallel mountain ranges produced by faulting
"dead zone" between 105 and 140 degrees from an earthquake's epicenter, where nothing is recorded on a seismogram
occurs when lithospheric plates converge and the edge of one plate is forced downward beneath another; recycles old lithospheric plates
plate tectonic boundary that exists as a large fault, or crack, along which lithospheric plates move in a horizontal direction
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