Exam 10: Earthʹs Surface Relief Features

An active volcano is defined as one that

_________applies to upward-faulted blocks,whereas _________applies to downward-faulted blocks.

A gently sloping mountain landform built from effusive eruptions is known as a

The Sierra Nevada and Grand Tetons are examples of tilted -fault-block mountain systems.

A topographic region that is characterized by local relief of more than 100 m (325 ft.),but less than 600 m (2000 ft.),is considered a

Radon gas emissions and changes in the magnetic field are some of the phenomena that often occur prior to a quake.

The general term for the undulations and other variations in the shape of Earthʹs surface is called

The San Andreas fault is principally the result of compressional stress.

Paleoseismology estimates expected earthquake activity based on past earthquake activity.

Geologically speaking,the continents began forming relatively recently.

A topographic region that is characterized by local relief of less than 100 m (325 ft.)is considered a

The measurement of land elevations relative to sea level is known as hypsometry.

An instrument used to record vibrations in the crust is the

A occurs when the fault plane forms a low angle relative to the horizontal,resulting in the overlying block being shifted over the underlying block.

Terranes often differ in rock composition and structure from the continental plate to which they accreted.

A normal fault is associated with compressional stress.

The average elevation of all Earthʹs surface is slightly above sea level at this time in Earthʹs history.

The magnitude of some aftershocks rival that of the main earthquake.

A reassessment of pre-1993 earthquakes using the moment magnitude scale has increased the rating of all earthquakes based on the Richter scale.

A topographic region that is characterized by local relief of more than 600 m (2,000 ft)is a