Exam 9: Folds, faults, and Geological Maps

Stress that is different in different directions is said to be _____.

Folds are said to be asymmetrical when one limb dips more steeply than the other.

A permanent but gradual change in a rock due to flowing or bending is known as ductile deformation.

The figure below shows a plunging anticline and syncline.

A formation is a unit of rock that can be distinguished from units above and below on the basis of geological contacts.

A stress that exerts equal force in all directions is known as _____ stress.

_____ is the force acting on a surface per unit area,which may be stronger in some directions than others.

A stress that is usually associated with spreading centers is known as _____ stress.

Folds that are so overturned they are almost lying flat are said to be _____.

A fold that forms a trough with the youngest rocks in the middle is known as a(n)_____.

A _____ map shows the locations,kinds,and orientation of rock units.

Places where bedrock is exposed at the surface are called _____ by geologists.

A mountainous area can be classified as an area of low relief.

Describe the difference between a left-lateral and a right-lateral strike-slip fault.

In the figure below from the Old Red Sandstone,the anticline will have the oldest rocks in the middle.