continetal continel collisions: two tectonic plates with continental crust collide,pushes the continental crust upward
continental oceanic: a plate with oceanic crust collides with another plate with continental crust.
Oceanic oceanic: when two oceanic listphere collide, on of them sinks unde.
compression: object is squeezed
tension: forces that strecth an object
uplift:rising of regions, higher elevations
subsidence: sinking of regions, lower elevations
the deformation causes an earthquakes
surface waves:move in earth surface,produce motion
s-wave:particles of rock to move in a side
p-wave: particles of rock to move in back and forth
types of lava:
AA:pours out quickly,forms brittle crust
PILLOW:when lava erupts underwatwe
BLOCKY LAVA: does not travel far from the erupting vent
TYPES OF VOLCANOES:
SHIELD VOLCANO: BUILT OF LAYERS OF LAVA
CINDER CONE VOLCANO: ERUPT A SHORT TIMe,MADE OF PYROCLASTIC MATERIAL.
composite volcano: quieter flows of lava, common, combination of both types of eruptions