Plate Tectonics
#platetectonics #kettner

Who is alfred wegener?

Alfred Wegener was a German climatologist and geophysicist. Alfred Wegener is known for his famous continental drift theory, which was first presented in 1912. The continental drift theory stated that part of the Earth's crust slowly drift atop a liquid core.

Convergent- Tending to move toward one point or to approach each other.

Divergent- Drawing apart from a common point; diverging.

Transform Boundaries- Where 2 plates slide past each other, happens at continental vs. oceanic plates most famous example: The San Andreas Fault Line.

what tectonic plate is just off the coast of Washington?

The tectonic plate just off the coast of Washington is called the Juan de Fuca Plate.

What role did the juan de fuca plate have on the formation of the cascade mountains?

The Juan de Fuca Plate collided with the North American Plate, forming the Cascade mountains. The Juan de Fuca plate is constantly being pushed into and underneath the North American Plate, which pushes up the North American Plate where the Cascade Range is.

convection currents and the role they play in plate tectonics

Convection in the Earth is what causes flows in the plastic layer of Earth. This creates forces on the plates to move because of convection.

definitions:

Convergent- Tending to move toward one point or to approach each other.

Divergent- Drawing apart from a common point; diverging.

Transform Boundaries- Where 2 plates slide past each other, happens at continental vs. oceanic plates most famous example: The San Andreas Fault Line.

Rift zone- A large area of the earth in which plates of the earth's crust are moving away from each other, forming an extensive system of fractures and faults.

Subduction zone- the place where two lithospheric plates come together, one riding over the other. Most volcanoes on land occur parallel to and inland from the boundary between the two plates.

how were the channeled scablands formed?

A channeled scabland is an elevated area of barren rocky land with little or no soil cover, often crossed by dry stream channels. We live in these!