Exam 21: Structural Geology and Plate Tectonics

The lithosphere is

The lowest places on Earth's surface are called __________ trenches.

The basic mechanism for plate movement is thought to be

The ______________ scale gives an absolute measure of the energy released by an earthquake.

The three types of plate boundaries are convergent, __________, and transform boundaries.

An earthquake S wave travels through

The type of plate boundary at which one plate collides with another and subduction occurs is called ______________.

The lithospheric plates are believed to be put into motion by the driving force of ______________ cells in the asthenosphere.

Geologists view the section of Earth called the ______________ as consisting of a number of close-fitting plates.

Remanent magnetism is present in rocks that contain the mineral named

The waves of an earthquake are detected by an instrument called a

Geologists view the part of our planet that is called the ______________ as consisting of a number of close-fitting plates.

The three types of plate boundaries are ______________, divergent, and transform boundaries.

An earthquake P wave travels through

When an earthquake occurs, the location on Earth's surface above the point of initial energy release is called the earthquake's

An earthquake of magnitude ______________ on the Richter scale is the smallest that can be felt by humans.

In the early 1900s, a scientist named ______________ revived the idea of continental drift.

The three types of plate boundaries are ______________, divergent, and transform boundaries.

Because of the ______________ zones formed by S and P waves as they travel through Earth, the outer core is thought to be a viscous liquid.

A mid-ocean ridge is formed at the boundary of two plates