2.7 Lithospheric plates Flashcards

1
Q

What is meant by the term lithosphere?

A

the rigid/brittle crust and upper part of the upper mantle

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2
Q

What is a lithospheric plate?

A

a discrete section of the lithosphere

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3
Q

Name the plate

A

Pacific Plate

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4
Q

Name the plate

A

North American Plate

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5
Q

Name the plate

A

South American Plate

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6
Q

Name the plate

A

South American Plate

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7
Q

Name the plate

A

Eurasian Plate

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8
Q

Name the plate

A

African Plate

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9
Q

Name the plate

A

Indian Plate

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10
Q

Name the plate

A

Arabian Plate

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11
Q

Name the plate

A

Australian Plate

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12
Q

Name the plate

A

Filipino Plate

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13
Q

Name the plate

A

Caribbean Plate

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14
Q

Name the plate

A

Cocos Plate

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15
Q

Name the plate

A

Juan de Fuca Plate

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16
Q

Name the plate

A

Nazca Plate

17
Q

What evidence is used to delineate the boundaries of the lithospheric plates?

A
  • earthquakes
  • changes in heat flow
  • chains of volcanoes
  • ocean trenches
  • rift valleys
  • changes in gravity
  • fold mountain belts
18
Q

What is the key characteristic of the interior of lithospheric plates?

A

they are generally aseismic

19
Q

What is a plate boundary?

A

a place where two plates meet

20
Q

How many large plates are there?

A

7

one for each continent