Fossil Record Vocab Flashcards

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1
Q

uniformitarianism

A

.the theory that changes the earths crust during history

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2
Q

catastrophism

A

.the theory that changes the earths crust during history that has occured of violence

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3
Q

paleontology

A

the study of dinosaur bones

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4
Q

relative dating

A

. the relative order of past events

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5
Q

absolute dating

A

.unwanted certainly of accuracy

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6
Q

superposition

A

.the layering of sediments

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7
Q

isotope

A

.the appliance for determining the changes in position of things

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8
Q

radioactive decay

A

.the transportation of a nucleus

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9
Q

half-life

A

.the time taken for radioactivity

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10
Q

fossil

A

.the remains of a dead organism over time

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11
Q

trace fossil

A

.the fossil of a footprint or burrow

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12
Q

mold

A

.the non-real sculpture of something

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13
Q

cast

A

.throw something forcefully

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14
Q

unconformity

A

.a surface contact between 2 groups

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15
Q

mass extinction

A

.when a whole group of something goes extinct

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16
Q

Jurassic period

A

.when dinosaurs were alive 55 million years ago

17
Q

Cretaceous period

A

.period from about 145.5 and 65.5 million years ago

18
Q

Devonian period

A

.a period from 60 million years ago

19
Q

Quaternary period

A

.a period from 2.58 million and 11.7 thousand years ago

20
Q

Permian period

A

.a period from 299 to 251 million years ago