Geology Stress and Strain

Play an AI-generated podcast conversation about this lesson

What is the relationship between stress and strain in rocks?

Stress remains constant regardless of strain.

Stress is the force that causes strain in rocks. (correct)

Strain can exist without any applied stress.

Strain occurs due to released energy from static stress.

Which type of stress is associated with rocks being pulled apart?

Compressional stress

Tensional stress (correct)

Shear stress

Elastic stress

What type of deformation returns to its original shape after stress is released?

Brittle deformation

Permanent deformation

Elastic deformation (correct)

Ductile deformation

What occurs at the yield point of a material?

The material transitions to ductile deformation. Signup and view all the answers

Which of the following types of strain results in rock fracturing?

Brittle strain Signup and view all the answers

What is the primary factor affecting the deformation of rocks?

Pore pressure Signup and view all the answers

Which of the following statements about geologic maps is correct?

Each formation on a geologic map has a specific color and label. Signup and view all the answers

How are folds classified according to their structure?

According to their axis orientation Signup and view all the answers

In an anticline, what is the relative age of the rocks located at the center of the fold?

Oldest rocks are at the center. Signup and view all the answers

What is the significance of the strike and dip symbol in geology?

It represents the angle and direction of inclined beds. Signup and view all the answers

What determines the direction of strike-slip movement at a fault?

The position of the observer relative to the fault Signup and view all the answers

Which type of fault feature is associated with compressional stresses?

Transpressional features Signup and view all the answers

What process explains how energy is released during an earthquake?

Elastic rebound theory Signup and view all the answers

What is the term for the initial point of rupture during an earthquake?

Focus Signup and view all the answers

How does constructive interference affect seismic waves?

It amplifies the effects of the waves. Signup and view all the answers

What is a characteristic feature of monoclines?

They are ridges that act as topographic barriers. Signup and view all the answers

Which of the following describes the formation process of a dome?

Creation from compressional forces and underlying igneous intrusions. Signup and view all the answers

What occurs in a normal fault during tectonic activity?

The hanging wall moves down relative to the footwall. Signup and view all the answers

What defines a megathrust fault?

A reverse fault with a low dip angle in subduction zones. Signup and view all the answers

Which best describes a basin in geological terms?

A bowl-shaped depression that collects sediment over time. Signup and view all the answers