Earth's Structure
The lithosphere, asthenosphere, mesosphere, inner core, and outer core are referred to as these layers.
What are the physical layers of the Earth?
The theory that large pieces of the Earth's outermost layer move and change shape.
Theory of plate tectonics.
This the amount of force per unit of area on a given material which causes deformation.
What is stress?
The Juan de Fuca plate is the remains of this plate.
What is the Farallon Platez?
Throughout Earth's history the north and south poles have changed places in a phenomena known as this.
What are magnetic reversals?
The deep interior of the Earth can be mapped using these.
What are seismic waves?
A tectonic plate is made of this.
What is the crust and upper layer of the mantle?
Two ways that rock deform.
What is folding and faulting?
The area where Nevada and the eastern deserts of California were once this.
What is the coast of California?
The process in which new sea floor forms as old sea floor is pulled away.
What is sea floor spreading?
Two types of the Earth's crust.
What are oceanic crust and continental crust?
Plate boundaries that push against each other.
What are convergent boundaries?
The type of fold in which the oldest rock layers are in the center where the rock limbs typically slope downward.
What is an anticline?
The Farallon plate and the North American plate formed this kind of boundary.
What is a convergent boundary?
When the edge of the tectonic plate that contains oceanic lithosphere sinks and pulls the rest of the plate with it.
What is a slab pull?
What were three pieces of evidence Wegener used to explain his hypothesis of Continental Drift?
What were similar fossil and rock evidence, climate regions, continents fit together like puzzle pieces?
When continental crust and oceanic crust collide this occurres.
What is a subduction zone
In this type of fault, the hanging wall moves up as the footwall moves down in response to compression.
What is a reverse fault?
When the Pacific plate finally touched the North American plate this kind of boundary was born.
What is a transform boundary?
Hot rock from deep within the Earth rises, but cooler rock near the surface sinks.
What is convection?
Pangaea broke into two super continents called_______&_________.
What are Laurasia and Godwana
Boundary in which two plates slide past each other horizontally.
What are transform boundaries?
Features such as polished surfaces called________ indicate where rocks have moved at a fault.
What sre slickenslides?
These are chunks of lithosphere that are scraped off of a subducting plate and are added to the edge of the continent.
What are accreted terranes?
This is a large mass of igneous rock that forms deep below the surface.
What is a batholith?