Transform boundary - A boundary at which one lithosphere plate slips laterally past another.
continental vs continental -
tectonic-plate-boundaries.jpg
volcanoe.jpg
Sea floor spreading - when the plates move apart and magma comes up and makes a volcano.
http://library.thinkquest.org/17457/platetectonics/4.php
http://geology.com/nsta/transform-plate-boundaries.shtml