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Flashcards in Fossil fuel Deck (20)
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1

uniformitarianism

the same natural laws and processes that operate in the universe

2

catastrophism

something bad

3

paleontology

study of fossils

4

relative dating

realative dates

5

absolute dating

exact dating

6

superposition

the net response at a given place and time caused by two or more stimuli

7

isotope

are variants of a particular chemical element which differ in neutron number.

8

radioactive decay

decay that is radioactive

9

half-life

half alive

10

fossil

an organism enclosed in sediment

11

trace fossil

traces of fossils

12

. mold

a plant

13

cast

a mold

14

unconformity

not conformity

15

mass extinction

extinction of a large group

16

Jurassic period

dinosaurs

17

Cretaceous period

79 million years from the end of the Jurassic Period

18

Devonian period

spanning 60 million years from the end of the Silurian

19

Quaternary period

the current period

20

Permian period

46.7 million years from the end of the Carboniferous Period /