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Science > Mountains And Movement > Flashcards

Mountains And Movement Flashcards

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1
Q

Actual Height

A

Difference between the elevations of the summit and the base

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2
Q

Active Volcano

A

One that has erupted at least once in the past 50 years 

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3
Q

Aftershock

A

Smaller earthquakes occurring after a major earthquake

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4
Q

Anticline

A

Upward folding of strata due to sideways pressure 

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5
Q

Basin

A

Depression and the crust formed by downward pressure

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6
Q

Caldera

A

Crater or bowl-shaped depression, at the mouth of a volcano

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7
Q

Cinder cone

A

Formed mostly by ashes and cinders

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8
Q

Composite volcano

A

Formed from alternating layers of lava and ash

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9
Q

Continental flood basalts

A

Large areas of land, covered in deep layers of basaltic lava

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10
Q

Depositional mountain

A

Mountains formed from debris

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11
Q

Dome

A

Formation due to upward pressure

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12
Q

Dormant volcano

A

One that has not erupted in the past 50 years, but could erupt again

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13
Q

Earthquake

A

Rapid movement of the earths crust

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14
Q

Elevation

A

Height of summit above sea level

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15
Q

Epicenter

A

Location and surface of the earth above the focus

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16
Q

Erosional mountain

A

Mountains that have been formed by erosion

17
Q

Extinct volcano

A

One that is not expected to erupt again

18
Q

Fault

A

Crack in the earths crust

19
Q

Focus

A

Location of the origin of an earthquake 

20
Q

Footwall

A

Lower side of a fault

21
Q

Fold mountain

A

Mountains formed by movement of tectonic plates towards each other

22
Q

Geothermal

A

Heat from inside the Earth

23
Q

Hanging wall

A

Rock above a fault

24
Q

Monocline

A

Folding a strata due to upward pressure on one side and downward pressure on the other

25
Q

Normal fault

A

Hang wall moves up with respect to the footwall

26
Q

Plate tectonics

A

Theory that the earths crust is composed of several moving plates

27
Q

Reverse fault

A

Hanging wall moves down with respect to the foot wall

28
Q

Rifting

A

Where two tectonic plates move away from each other

29
Q

Rodina

A

Original landmass

30
Q

Seismograph

A

Equipment used for detecting earthquakes

31
Q

Shield volcanoes

A

Formed from mostly lava

32
Q

Strike slip fault

A

Where two plates move horizontally against each other

33
Q

Subduction

A

When one tectonic plate slides under the edge of another

34
Q

Subduction zone

A

Area where one tectonic plate slides under the edge of another

35
Q

Syncline

A

Downward folding of strata due to sideways pressure

36
Q

Tsunami

A

Giant water waves triggered by earthquake

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