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Science > Petrology Assessment > Flashcards

Petrology Assessment Flashcards

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0
Q

Intrusive rock

A

Forms inside the earth from slowly cooling magma

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1
Q

Extrusive rock

A

Forms at the earths surface from rapidly cooling lava

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2
Q

Rock

A

Hard, naturally occurring solid with a distinctive mineral composition

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3
Q

Igneous rock forms

A

Forms from the crystallization of magma, and compaction of pyroclastic materials

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4
Q

When minerals are fairly large, that’s because they cool:

A

Slowly

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5
Q

When minerals are small, that’s because they cool:

A

Quickly

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6
Q

Sediment

A

Deposits of rock that are carried by wind to their destination of either the surface of land or the bottom of a body of water.

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7
Q

Contact metamorphism

A

Metamorphism caused from direct contact with magma

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8
Q

Regional metamorphism

A

Metamorphism caused from plate tectonic interactions

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9
Q

Clastic

A

Formed from other parts of rocks

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10
Q

Non clastic

A

Remains of living things formed in a rock

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11
Q

Three forms of sedimentary rocks

A

Clastic, organic, chemical

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12
Q

Three types of bedding

A

Cross-bedding /
Graded bedding 00oo
Bedding -

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13
Q

Foliated

A

Formed from regional metamorphism; layers of light and dark rock

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14
Q

Non-Foliated

A

Formed from contact metamorphism; no distinctive layers

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15
Q

What is necessary for rocks to undergo metamorphism?

A

Heat and pressure

16
Q

Type of rock that can become metamorphic

A

Metamorphic
Igneous
Sedimentary

17
Q

When rocks are heated the minerals undergo:

A

Chemical change

18
Q

Rock cycle

A 
Metamorphic rocks 
Weathering 
Sediments 
Lithification 
Sedimentary rocks
Melting 
Magma 
Cooling 
Igneous rocks 
Metamorphism
19
Q

Why is the rock cycle considered a cycle?

A

It’s never ending

Science (7 decks)

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