chapter 26.3 , 26.4 Flashcards

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1
Q

Define clasts

A

Small rock and mineral fragments

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2
Q

What types of erosion are rocks on Earth’s surface exposed to?

A

Water, wind and other forces

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3
Q

What does it mean if clasts are being transported?

A

Being moved from one place to another

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4
Q

What does it mean if clasts are being deposited?

A

Being dropped off

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5
Q

Define pore space

A

Empty spaces found between clasts

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6
Q

Define compaction

A

The process which clasts stick together due to the weight of overlaying material

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7
Q

Define cementation

A

Mineral precipitate slowly out of a water solution and crystallizes in the spaces between clasts

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8
Q

How are sedimentary rocks formed?

A

Clasts get compacted, water flows through, causing cementation

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9
Q

What is another name for clasts?

A

detrius

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10
Q

What are sedimentary rocks called that are mostly made of clasts?

A

detrital sedimentary rock

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11
Q

What is the decreasing size of clasts?

A

gravel, sand, silt, or clay/mud

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12
Q

Which clast size would be deposited first?

A

gravel

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13
Q

What are 4 common detrital sedimentary rocks?

A

conglomerate, sandstone, siltstone,

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14
Q

How are chemical sedimentary rocks formed?

A

Chemical sedimentary rock forms when mineral constituents in solution become supersaturated and inorganically precipitate

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15
Q

If sedimentary rocks contain remains of living organisms, what are they called?

A

biochemical sedimentary rocks

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16
Q

What are 2 common biochemical sedimentary rocks?

A

limestone and coal

17
Q

What are the tree types of sedimentary rock?

A

biochemical, chemical, detrital

18
Q

Metamorphic rock is changed by a combination of which 3 things?

A

Heat, pressure, and chemical reactions

19
Q

Which types of rocks can be changed by metamorphism?

A

Igneous, sedimentary, or metamorphic rocks

20
Q

What is it called when metamorphic changes in rocks occur over large areas?

A

Regional metamorphism

21
Q

What is it called when metamorphic changes in rocks occur over small changes?

A

contact metamorphism

22
Q

When shale is compressed, which type of metamorphic rock is created?

A

slate

23
Q

What are the two types of metamorphic rock textures?

A

Foliated and nonfoliated

24
Q

Define foliated texture

A

Crystals that are arranged in layers and bands

25
Q

Define nonfoliated texture:

A

rocks have crystals with more random orientation

26
Q

Metamorphic rocks are mainly classified based on which two things?

A

texture and composition

27
Q

Define rock cycle:

A

continual changing of rocks from one type to another

28
Q

Which types of rocks are part of the rock cycle?

A

igneous, sedimentary, and metamorphic

29
Q

What are the three types of rocks?

A

igneous, sedimentary, and metamorphic

30
Q

Which type of rocks form from molten rock?

A

igneous

31
Q

Which types of rocks are formed from clasts, precipitation, or compressed once living matter?

A

sedimentary

32
Q

Which types of rocks are formed from heat, pressure, and chemical reactions?

A

metamorphic

33
Q

What can form from hot water, evaporation, or molten rock?

A

minerals