Earth's Layers
It is the outermost rigid physical layer of the earth, it is also the thinnest.
Lithosphere
The giant land mass that was estimated to break apart about 200 million years ago.
Pangaea
the crack that forms when large blocks of rock break and move past each other.
fault
the resistance of a liquid material, such as lava, to flow.
Viscosity
When a rock returns to its original shape after elastic deformation.
Elastic rebound.
Earth is divided into this many compositional layers
3
This forms when two plates collide
a convergent boundary
The type of stress that stretches or pulls rock apart
tension
Inside the volcano, molten rock can form an expanded area of magma called this?
Magma chamber
The San Andreas fault is a location where tectonic plates move horizontally past eachother. What type of plate boundary describes this
Transform
The liquid part of the core.
outer core
The movement of material due to differences in density
convection
a type of fold where the youngest layers of rock are found at the core of the fold.
Syncline
When the magma chamber below a volcano empties, the roof of the magma chamber may collapse and leave an even larger, basin-shaped depression known as a
Caldera
As tectonic plates move, pressure builds up near edges of plates, these movements break the crust up into series of faults causing this.
Earthquake
This compositional layer contains more magnesium and less aluminum and silicon than than the lithosphere does
Mantle
The theory that describes large scale ocean movements of earths lithosphere, which is made up of the crust and the rigid upper part of the mantle.
Plate tectonics.
This type of mountain forms when tension makes the lithosphere break into many normal faults. Some examples include the Tetron Mountains and the Sierra Nevadas.
Fault-Block Mountains
This type of viscosity does not flow easily, forms steep slopes, and can erupt explosively.
High Viscosity
Measures how much energy is released in a quake.
Magnitude
A model of the layers, CRUST, MANTLE, and CORE, are modeling what kind of layers?
Compositional Layers
At subduction zones, a denser tectonic plate sinks, or subducts, beneath another, less dense plate. The leading edge of the subducting plate is colder and denser than the mantle. As it sinks, the leading of the plate pulls the rest of the plate with it. What is this process
Slab pull
For any fault except a perfectly vertical fault, the block above the fault plane is what this is.
The hanging wall
Fissure eruptions happen when lava flows from giant cracks, or (this word) in earths surface.
Fissures
a method that uses distance information determined from 3 seismic stations to uniquely locate the earthquake. On a map, circles are drawn around each seismic station. The radius of the circle are scaled to the estimated distance from the station to the earthquake.
Triangulation