chapter 25.3 and 25.4 Flashcards
what are the shadow zones
the place where no sizemic wave bean recorded
what is another word for shadow zone
dead zone
what are the degrees of the show zone fall
105 degrees and 140 degrees
is the iner core a solid or a liquid? why?
is a solid do to the presure
that is a lithosphere?
the crust and the upper most mantle
what is the asthenosphere?
plastic like layers that the plates move on
what metallic make up the core
iron and nicle
what makes up the mantle
calcium,aluminum,iron,and magnesium
viscosity
is the measure of fluids resistance to flow
silica
is the chemical compound silicon dioxide
cinder cone volcanoes
small step-sloped volcano with a short eruption cycle
shield volcanoes
are broad, flat structures composed of layer upon layer of lava flow
composite valcanoes
a large and steep-sided, volcano composed of layers of lava and ash
magma
what is molten
pacific ocean
where is the ring of fire
volcanoes
what forms when tectonic plates collide against subduction zone
mid atlantic ridge, east african rift
what two specific locations can volcano be active
valcanic islands(hawaii)
what are created from hot spots
faster
if a liquid has a higher viscosity is it going to run faster or slower
any solid material
what is pyroclastic material
ash
what is the smallest type of pyroclastic
valcanic blocks and bombs
what is the largest pyroclastic
water vapor, carbon dioxide, and sulfur dioxide
what are the types of gasses that come from volcanos
shield, composite, cinder
what are the three types of valcanos
