Physical Science Ch. 7

The below diagram is an example of what plate tectonic setting?

?

Which of the following Is true based on the diagram?

???

Which letter in the figure corresponds to a syncline?

A

The Rocky Mountains of western North America were produced in an orogeny called the ________.

Lamaide orogeny

What is the major difference between a subduction zone and a collisional mountain chain?

a subduction zone has active volcanism

Most active faults pose a risk to society because they can potentially produce ________.

earthquakes

The Sierra Nevada Mountains of California, and the Teton Mountains of Wyoming, ranges are examples of ______

fault blocks uplifted by plate teriarity to quaternary normal faulting

Orogenesis refers to the formation of ________.

mountains

The Appalachian Mountains may have once been as lofty as the Himalayan-Tibetan Mountain belt is today. Why are they not this high now?

They formed long ago and erosion has delved them to their present low elevation

Mountain building uplifts rocks against the force of gravity raising their potential energy, which requires work by the earth system. Based on the relative motion of fault blocks, what type of fault would you expect to require more energy than the others?

Thrust

The Appellations were formed by three phases of _______ organy

collisional

Subduction occurs when ______ rocks are forced beneath ____ rocks

oceanic or continental oceanic

What is a modern theory for orogenesis (mountain building)

plate tectonics theory

The San Anderes fault in California and the Alpine fault in New Zealand are examples of _______

strike skip vaults

Island arcs and Andean type mountains are both examples of mountains formed by ______

subduction