Exam 5: Mountain Belts and the Continental Crust

The once deep-seated roots of former Precambrian mountain belts are the _____ rock for the now stable,central part of the continent.

Weathering and erosion play no role in the development of mountains.

Isostatic adjustment takes place during orogeny.

The region of a continent that has been structurally stable for a prolonged period of time is called the craton.

Late stage normal faulting in a mountain range is a result of _______.

Delamination is the detachment of the continental crust from the oceanic crust.

The continental crust is _______ beneath mountain belts than under the craton.

_____ faults in the Tibetan plateau indicate that gravitational collapse is taking place.

The present ________ represent rejuvenation following uplift in Late Tertiary time.

A _____ terrane has rock types and ages that do not seem to be related to the rest of the geology of a mountain belt.

If the San Andreas Fault remains active,Los Angeles will continue northward and crash into ___.

Extension and normal faulting take place in a mountain range ____.

The system approach regards mountains as the products of three closely interdependent components.Which of the following is not one of those components?

Of the two major mountain belts in North America,the _______ are in the West.

Fold and thrust belts are found in many mountain regions.

During the last couple of decades,geologist have used a _____ approach to gain insight into the growth and wearing away of mountains.

________ beneath the Basin and Range helps explain the extensive rhyolitic and basaltic eruptions that occurred tens of millions of years after the last orogeny.

Terranes that can be shown to have traveled great distances are known as _____ terranes.

Geologists regard most bodies of ultramafic rock as being _______.

Major mountain belts with higher mountain ranges tend to be geologically ___________ relative to those where the mountains are lower.