Exam 9: Mountains

A fold:

A/an __________ is a bend in rock.

Extensional stress at a divergent plate boundary produces normal faults and grabens.

When a rock is stressed, it may deform plastically, or break by brittle fracture.

In a __________ fault, the hanging wall has moved downward relative to the footwall.

A syncline:

A reverse fault occurs as a result of __________.

A/an __________ __________ forms where two plates carrying oceanic crust converge.

A/an __________ is a fold that arches upward.

The Andes developed from a convergence between a tectonic plate carrying oceanic crust and another carrying continental crust.

The Himalayas are continuing to rise because of underthrusting.

The term __________ refers to the process of mountain building.

The modern Himalayas continue to grow as a plate carrying oceanic crust subducts beneath a plate carrying continental crust.

A/an __________ __________ is any feature produced by rock deformation.

A circular anticline is called a:

A circular syncline is called a __________.

A joint is a fracture in which the rocks on:

A/an __________ is a wedge-shaped block of rock that has dropped downward between two normal faults.

Sea floor sediment and oceanic crust pieces are scraped off a subducting plate and accumulate in the __________ complex.

Subduction of oceanic crust at a continental margin creates __________.