tectonic Flashcards

1
Q

crust

A

The outermost shell of a rocky plantet

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2
Q

mantal

A

layer of molten rockbetween the crust and core

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3
Q

core

A

mostly made up of iorn sepeerated into the outor core molten and the inner core solid

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4
Q

tectonic plates

A

the layer of rocks that make up the outer parts of earth like the crust and the upper mantal linspher plates

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5
Q

continental drift theory

A

the theory that the continents over time drifted to there now places

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6
Q

coverson current

A

the prosses in witch the hotess parts of a gas or luiqud rise to the top and the cooler dencer part at risk

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7
Q

cunvegent boundrys

A

when two tectonic plates come together

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8
Q

mountains

A

rocks getting pushed up

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9
Q

volcanos

A

a vent or fusion in earths surface though witch magma and gasses are expeled

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10
Q

divegent boundres

A

when tectonic plates split apart

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11
Q

asthenospher

A

a thin layer of earth 150 miles thick at the border between the mantal and the crust

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12
Q

transform boundry

A

where two plates slide past each other

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13
Q

fault

A

breaks in the crust the movent cause sisment wave witch makes earth quicks

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14
Q

mid- ocean ridge

A

a long ridge of under water vocanos between two diveging oceanic plates

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15
Q

subduction zone

A

a place where 1 tectonic plate sinks under another 1 and melts

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16
Q

rift valley

A

a long arrow valley between two diverging continental plates