Interior of the Earth Plate Tectonics

What boundaries grind past each other like at the San Andres Fault?

What is made at the mid-ocean ridge?

Wegener came up with a hypothesis about Earth movement called?

A layer of Earth, based on physical properties, where the rocks are close to the melting point and weak.

The central valley of a mid-ocean ridge that resembles a long canyon

The Great Rift Valley in Africa is an example of what type of plate boundary?

What theory discusses Earth's lithospheric plates moving slowly relative to each other driven by convection currents?

The thin, rocky outer layer of Earth

What is one reason oceanic lithosphere subducts under continental lithosphere?

What boundaries are found where lithosphere moves apart like at the Mid-Atlantic Ridge?

long, steep valleys on the ocean floor that occur at subduction zones.

Three factors that affect plate motion are ridge-push, slab-pull, and

What was the main objection to Wegener's hypothesis?

The process of new ocean floor forming along Earth's mid-ocean ridges and slowly moving outward across ocean basins.

The boundary that separates the crust from the underlying mantle.

What iron-rich mineral creates paleomagnetic rocks?

A long chain of mountains extending throughout all the oceans

What physical property is important in plate tectonics and the separation of Earth's layers?

Evidence for sea-floor spreading includes magnetic strips in ocean-floor rock, earthquakes, and

What is one reason the oceanic lithosphere subducts under the continental lithosphere?

A range of volcanic mountains within a continent produced by subducting oceanic lithosphere is called

The layers of Earth can be divided based on chemical composition or

Release of a shock wave of energy that travels through Earth, causing ground shaking and deformation.

The three types of plate boundaries we discussed are divergent, transform, and

What layer of the Earth is under the asthenosphere?

For his hypothesis, Wegener used evidence of matching fossils, rock types, and what?

What name did Wegener give the supercontinent meaning "all land"?

At what boundary do plates collide to create trenches, volcanoes, and mountain ranges?

Subducting lithosphere occurs at what plate boundary?

A continuous circular flow that occurs in a fluid because of a difference in density is

The liquid layer of the Earth that generates the magnetic poles.

The formation of the Himalayas are caused by what plate boundaries?