Exam 21: Structural Geology and Plate Tectonics

The deflection of one plate under another is called ______________.

What type of forces result in reverse faulting?

Seismic waves that propagate through Earth are known as

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

Folded rock layers that resemble an arch are called ______________.

The discovery of seafloor spreading led to acceptance of the theory of ______________.

The discovery of seafloor spreading led to acceptance of the theory of

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

Studies of remanent magnetism in rocks spreading from the Mid-Atlantic Ridge reveal symmetric bands of magnetic anomalies. These anomalies provide

Earthquake waves are monitored by an instrument called a(n) ______________.

Folded rock layers that resemble a trough are called ______________.

The idea of continental drift was not generally accepted when Wegener proposed it because

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

Pangaea is believed to have broken up about how many years ago?

Alfred Wegener postulated that the continents were once part of a single supercontinent that he called ______________.

Geologic evidence that supports the theory of continental drift does not include

Most earthquakes are caused by

Earth's core is believed to be composed of

P seismic waves can travel through ______________.

The part of the mantle located directly below the lithosphere is called the ______________.