Exam 21: Structural G Eology and P Late Tectonics

______________ faulting occurs as the result of forces parallel to the fault plane.

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

The Wasatch Mountains in Utah are examples of ______________ mountains.

In 1960,the scientist named __________ proposed the concept of seafloor spreading.

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

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

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

What type of forces result in normal faulting?

Transverse seismic body waves are known by the letter ______________.

S waves and P waves are earthquake body waves.S and P stand for

S seismic waves can travel only through ______________ material.

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

Folded rock layers that resemble a trough are called

Each whole-number step on the Richter scale represents about how many times more energy release that the preceding whole-number step?

After a major earthquake,the rocks may continue to adjust to their new positions,causing additional vibrations called

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

Most earthquakes are caused by

California's Sierra Nevada are examples of ______________ mountains.

The rock on the underside of an inclined fault plane is called the footwall,and the rock on the upper side is called the ______________.

3 steps on the Richter scale represents about how many times more energy?