Table of Contents
- 1 Under which conditions would a body of rock most likely to exhibit brittle?
- 2 What type of material undergoes smooth continuous plastic deformation?
- 3 What is the progression of rock types of these processes occur?
- 4 What determines whether a rock deforms in a brittle fashion versus a ductile fashion?
- 5 What is the difference between stress and strain in rocks?
- 6 What happens to a rock affected by tensile stress?
- 7 Which is more likely a rock to show deformation?
Under which conditions would a body of rock most likely to exhibit brittle?
A rock deformed quickly is likely to exhibit brittle behavior.
What is the progression of rock types if the steps along the rock cycle proceed as follows?
What is the progression of rock types if the steps of a process are as follows? Burial, uplift, erosion and deposition, burial, melting.
What type of material undergoes smooth continuous plastic deformation?
67 Cards in this Set
| The line formed by the intersection of an inclined sedimentary layer and a horizontal plane is called the _ | Strike |
|---|---|
| What type of material undergoes smooth, continuous plastic deformation? | Ductile |
| What types of forces dominate at convergent plate margins? | Compressive forces |
Under which of these conditions would a body of rock be more likely to exhibit plastic?
At the Earth’s surface, rocks usually break quite quickly, but deeper in the crust, where temperatures and pressures are higher, rocks are more likely to deform plastically. Sudden stress, such as a hit with a hammer, is more likely to make a rock break. Stress applied over time often leads to plastic deformation.
What is the progression of rock types of these processes occur?
The three main rock types are igneous, metamorphic, and sedimentary. The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation. Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle.
Which type of stress tends to press the rocks towards each other?
Compression
Tension is a directed (non-uniform) stress that pulls rock apart in opposite directions. The tensional (also called extensional) forces pull away from each other. Compression is a directed (non-uniform) stress that pushes rocks together. The compressional forces push towards each other.
What determines whether a rock deforms in a brittle fashion versus a ductile fashion?
Under great pressures deep in the Earth, rock behaves more ductilely than it does under low pressures near the surface. Pressure effectively prevents rock from separating into fragments. A sudden change in shape causes brittle deformation, whereas a slow change in shape causes ductile deformation.
What type of structure is characterized by rock layers that dip radially towards a central point?
What type of structure is characterized by rock layers that dip radially toward a central point? a basin (A synclinal structure consisting of a bowl-shaped depression of rock layers in which the beds dip radially toward a central point.)
What is the difference between stress and strain in rocks?
Stress is a force acting on a rock per unit area. Stress can cause strain, if it is sufficient to overcome the strength of the object that is under stress. Strain is a change in shape or size resulting from applied forces (deformation). Rocks only strain when placed under stress.
How are stress and strain different?
Stress is force adjusted for the area over which it is distributed. Strain is the change in shape that happens when rocks are deformed by stress.
What happens to a rock affected by tensile stress?
A body of rock affected by tensile stress will likely undergo . A body of rock affected by compressive stress will likely undergo . Ductile deformation involves joints and cracks.
Which is more likely a rock under low or high pressure?
A body of rock under high pressure is more likely to exhibit than is a body of rock at low pressure. A body of rock to which a sudden, rapid stress has been applied is more likely to exhibit than is a body of rock subjected to a gradually applied stress.
Which is more likely a rock to show deformation?
A body of rock to which a sudden, rapid stress has been applied is more likely to exhibit than is a body of rock subjected to a gradually applied stress. Force per unit area is termed . Deformation depends on the total force in the plate interaction.