Rock Behavior Under Stress

Naturally occurring substance

A process wherein heat and pressure change rocks physical and chemical make up.

The physical change that may occur during metamorphism.

Identify two main types of metamorphism.

It is a type of metamorphism where contact rocks and changes it by extreme heat.

It is a type of metamorphism when great masses of rock are exposed to pressure.

The force per unit that is placed on rock.

Enumerate 3 types of stress.

Type type of stress that causes rocks to be pulled apart. It can be found at the divergent plate boundaries.

Type of stress that causes rocks to fold or fracture it squeezes rocks together. It is a common type of stress and convergent plate boundaries.

Type of stress that happens when forces light pass each other in opposite direction. It can be result to slippage and translation. Common stress found in transform plate boundaries

Enumerate two types of geologic structure.

It is formed when rocks experience compressive stress and deformed physically.

Enumerate three types of folds

Simple bend in the rock layers where the oldest rocks are at the bottom and the youngest are at the top.

It is a type of folds that arches upward where the oldest rocks are found at the center of anticline. The youngest the rocks are covered over them at the top of the structure

It is a type of fold that bends downward which rocks are curved down to a center.

It is the geologic structure which rocks under ample stress crack or fracture. The fracture is called a joint because there is a block of rock left standing on either side of a fracture line. Foot wall is the rock that plays on top of the fault while hanging wall is below the fault.

Enumerate three types of faults.

It is a type of faults that is most common at divergent boundaries. It develops as a hanging wall drops down. Example: East African Rift

A type of fault that is common at divergent boundaries. Forms when the hanging wall moves up. Create the highest mountain ranges. Example: Himalayas mountain and Rocky mountain

A type of fault that is formed when walls move sideways. Either right lateral or left lateral. Common on transform plate boundaries. Example: San Andres Fault