Mountains And Movement Flashcards

(36 cards)

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
Normal fault
Hang wall moves up with respect to the footwall
26
Plate tectonics
Theory that the earths crust is composed of several moving plates
27
Reverse fault
Hanging wall moves down with respect to the foot wall
28
Rifting
Where two tectonic plates move away from each other
29
Rodina
Original landmass
30
Seismograph
Equipment used for detecting earthquakes
31
Shield volcanoes
Formed from mostly lava
32
Strike slip fault
Where two plates move horizontally against each other
33
Subduction
When one tectonic plate slides under the edge of another
34
Subduction zone
Area where one tectonic plate slides under the edge of another
35
Syncline
Downward folding of strata due to sideways pressure
36
Tsunami
Giant water waves triggered by earthquake