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
