esc 1000 chapter 10

In what part of a subduction margin might you find rocks deposited on the abyssal plain, far from land?

Accretionary Wedge

A widely cited theory associates active faults and earthquakes in China and southeast Asia to the India-Eurasia collision. This theory suggests ________.

India is plowing into the "soft underbelly" of Asia, pushing East Asia eastward

A(n) ________ is a thick accumulation of sediments and small tectonic blocks formed of material scraped off subducting oceanic lithosphere at a convergent margin.

accretionary-wedge complex

The higher the temperature, the more likely it is that a rock will deform ________.

ductilely

A good example of a present-day, passive continental margin is the ________.

east coast of North America

The area labeled C shows an active fault bounding the range. Which best describes the motion on the fault?

east side up

Orogenesis refers to the formation of mineral deposits.

f

Terrane accretion generally occurs along a divergent boundary between a continental plate and an oceanic plate.

f

Burial of rocks increases the confining pressure so that deeply buried rocks are more likely to ________ than shallow rocks.

fold

Monoclines, anticlines, synclines and domes are all examples of ________.

foliation

What type of basin would be most likely to contain large amounts of sediments derived from a volcanic source?

forsaeic basin

In a monocline, one of the limbs of the fold ________.

is horizontal

Folded limestones that are exposed high elevations in the Himalayas were originally deposited as sediments in a ________.

marine basin between India and Eurasia.

In an overturned fold, the beds have rotated ________.

more than 90 d

The ________ is (are) characterized by terrane accretion that has been active throughout most of Mesozoic and Cenozoic time.

western margin of North America

Large circular downwarped structures are called ________.

basins

Granitic batholiths typically form over time intervals of ________.

billions of years

What is the modern theory for orogenesis?

plate tectonics theory

The San Andreas Fault in California and the Alpine Fault in New Zealand are examples of ________.

strike-slip faults

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

subduction

The boundary between two terranes or two continents that have collided is called a ________.

suture

In thrust faulting, ________.

the crust is shortened and thickened