Faults, Fractures, and Stress Types

The video tutorial discusses the deformation of Earth's crust, focusing on how stress affects tectonic plates, leading to various types of stress: compression, tension, and shearing. It explains how these stresses cause rock deformation, resulting in folding, fracturing, and faulting. The tutorial covers different types of folds, such as anticline and syncline, and faults, including normal, reverse, and strike-slip faults. The lecture concludes with a discussion on the impact of these geological processes on Earth's landscape.

What is the primary cause of deformation in the Earth's crust?

• Tectonic plate movements

• Weather changes

• Volcanic eruptions

• Ocean currents

Which type of stress occurs at convergent boundaries?

• Tension

• Erosion

• Compression

• Shearing

What happens to rocks under tension stress?

• They become thicker

• They become thinner

• They break apart

• They melt

Which type of boundary is associated with shearing stress?

• Subduction

• Transform

• Divergent

• Convergent

What is the result of compression stress on rocks?

• Rocks dissolve

• Rocks fold

• Rocks fracture

• Rocks melt

What is an anticline?

• A fold that bends downward

• A fold that bends upward

• A type of fault

• A type of rock

Which fault type involves horizontal movement?

• Thrust fault

• Reverse fault

• Normal fault

• Strike-slip fault

What distinguishes a fault from a fracture?

• Fractures are horizontal

• Faults are vertical

• Faults involve movement on either side

• Fractures involve movement on either side

Which type of fault is associated with convergent boundaries?

• Normal fault

• Reverse fault

• Transform fault

• Strike-slip fault

What type of stress causes a strike-slip fault?

• Erosion

• Shearing

• Tension

• Compression