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Layers of the earth
Plate tectonics continental drift faults and folds earthquake formation
30
Science
6th Grade
10/28/2010

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Term
the tectonic process that takes place along mid ocean ridges
Definition
Sea Floor Spreading
Term
the breaking and sliding surface between blocks of crust
Definition
Fault
Term
the place where two tectonic plates push into one another
Definition
convergent boundary
Term
the solid dense center of the earth
Definition
inner core
Term
occurs when the hanging wall moves up relative to the footwall
Definition
reverse fault
Term
a theory that says the lithosphere is divided into plates that move around on top of the asthenosphere
Definition
Plate Tectonics
Term
term that is best describing the bending of rock layers due to stress
Definition
folding
Term
the layer of the earth that is made mostly of iron
Definition
core
Term
the place where two tectonic plates move away from one another
Definition
divergent boundary
Term
the type of stress that occurs when two of item 23?
Definition
compression
Term
the layer of the earth made up of items 21 and 17
Definition
lithosphere
Term
a region where oceanic plates sink down into the asthenosphere
Definition
subduction zone
Term
the liquid layer of the earth beneath item 17?
Definition
outer core
Term
occurs when the hanging wall moves down relative to the footwall
Definition
normal fault
Term
the layer of the earth that has the most mass
Definition
mantle
Term
occurs when the opposing forcescauses rocks to break and move horizontally
Definition
strike slip fault
Term
the theory that continents move apart from each other
Definition
continental drift
Term
type of stress in a stretched rubber band
Definition
tension
Term
the layer of the earth on which we live
Definition
crust
Term
the place where two tectonic plates slide past each other moving horizontally
Definition
transform boundary
Term
pieces of the rock sphere
Definition
tectonic plates
Term
the amount of force per unit area put on a given material
Definition
stress
Term
what fault causes earthquakes in alabama?
Definition
New madrid fault
Term
what causes earthquakes
Definition
movement along fault zones
Term
what are the earthquakes most 2 defined things?
Definition
strenth n depth
Term
the process by which the shape of a rock changes because of stress
Definition
deformation
Term
a fault has a.......
Definition
foot and hanging wall
Term
are rock layers that are folded so that both ends of the fold are horizontal
Definition
Monocline
Term
an upward arching fold formed when there is horizontal stress on rock layers
Definition
Anticline
Term
forms when magama erupts from a divergent boundary and hardens
Definition
volcanic mountain
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