science Flashcards
what is another word for shadow zones
betweeen 105 and 140 degrees
what can p-waves and s-waves travel through
p-waves can go through a solid and a liquid
s-waves can go through a solid
is the inner core a solid or a liquid
it is a solid due to the pressure
what is lit ho spear
the crust and the upper most mantel
what is the asthenoshere
its a plastic like layer that the plates move on
what matalic mate make up the core
iron and nickel
what elements make up the mantle
calcium,aluminum,iron,magnisum
viscosity
is the measure of a fluids resistance to flow
silica
is the chemical compound silicon dioxide sio which is a common ingredient in most magma
lithosphere
the crust and uppermost mantle combine to from the lithosphere
athenoshere
tectonic plates move on top of a plastic like layer of the upper mantle called the athenoshere
cinder cone volcanoes
tend to be small have heights in hundreds of meters range and have shorteruption cycles
shield valcanoes
are broad flat structures composed of layer upon layer of lava flows
composite volcanoes
are large and steep sided often thousands of meters high and tens of milometers across the base and composed of layers of both lava and ash
what is molten or liquid rocks stored in earth
magma