chapter 26.3 Flashcards

1
Q

define clasts

A

small rock and mineral fragments

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2
Q

what types of erosion are rocks on earths 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

its being moved from one location to another

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4
Q

what does it mean if clasts are being deposited

A

its being dropped off

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5
Q

define pore space

A

free space between mineral grains

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6
Q

define compation

A

clasts stick together due to weight on top of it

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7
Q

define cementation

A

minerals precipitate slowly out of a water solution and crystallize in the space between clasts

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8
Q

how are sedimentary rocks formed

A

clasts get compacted water flows through the pore spaces then they get cemented together

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9
Q

what is another name for clasts

A

detritus

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10
Q

what are sedimentary rocks called that are mostly made of clasts

A

detrital sedimentary rocks

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11
Q

what is the decreasing size of clasts

A

gravel, sand, silt, or clay

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12
Q

which clast size would be deposited first

A

gravel(heavier material)

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13
Q

what are 4 common detrital sedimentary rocks

A

conglomerate, sandstone, and siltstone

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14
Q

how are chemical sedimentary rocks formed

A

water that contains dissolved solids mineral crystals precipitate out of solution of evaporation

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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 3 types of sedimentary rocks

A

biochemical, chemical, and detrital