Exam 21: Structural Geology and Plate Tectonics

Secondary seismic waves travel ______________ primary waves in solids.

When an earthquake occurs, the point of initial energy release is called the earthquake's ______________.

One plate slides horizontally past another plate at the type of plate boundary called ______________.

The structural region of Earth that has the greatest volume is the

Earth's mantle is

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

The mountains of the Alps in Europe are examples of ______________ mountains.

The Andes are examples of which type of mountain?

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

Which of the following is not a general type of faulting?

The place, or zone, where one plate descends under another plate and into the asthenosphere is called a ______________ zone.

Alfred Wegener speculated that the present continents were once part of a single supercontinent that he named

What type of faulting results from compressional stresses?

The theory of seafloor spreading was proposed in 1960 by

The Mercalli scale was used to measure

Earth's oceanic crust ranges in thickness from about

About what percent of Earth's radius do the crust and mantle together constitute?

Seismic waves that travel through our planet are called ______________ waves.

The plastic-like substratum on which the lithospheric plates move is called the

What type of faulting is expected along transform faults?