Essc 101 Final

Front 1

eon

Back 1

largest subdivision of time

Front 2

hadean

Back 2

hellish origins of the earth

Front 3

archaen

Back 3

early earth

Front 4

proterozoic

Back 4

early life

Front 5

phanerozoic

Back 5

visible life

Front 6

eras

Back 6

subdivisons of the eons

Front 7

paleozoic

Back 7

old life

Front 8

mesozoic

Back 8

middle life

Front 9

cenozoic

Back 9

new life

Front 10

rodinia

Back 10

first major super continent formed at the south pole, shut off ocean circulation, making them cold creating an ice age

Front 11

precambrian consists of

Back 11

hadaen, archean, and proterzoic

Front 12

father of geology

Back 12

james hutton

Front 13

on the origin of species

Back 13

describing evolution of species by natural selection

Front 14

let us know everything we know about earth

Back 14

rocks

Front 15

intrusion

Back 15

younger igneous rocks

Front 16

inclusion

Back 16

older, preexisting material embedded into something else

Front 17

fossil

Back 17

preserved remains of ancient life that gives us a way of understanding the history and evolution of life

Front 18

relative age dating

Back 18

putting events and formation in a chronological sequence

Front 19

principle of super position

Back 19

youngest on top and oldest on the bottom

Front 20

principle of original horizontality and lateral continuity

Back 20

sed rock layer will remain at a constant thickness and will continue until it tapers out (sed was originally flat because it was deposited by water)

Front 21

principle of cross cutting relationships

Back 21

rock formation must be older than the fault that cuts through it

Front 22

principle of inclusion

Back 22

inclusions of a one rock formation in another indicate that the rock is older

Front 23

principle of faunal succession

Back 23

rocks relative age can be determined by the fossils it contains

Front 24

principle of landscape dev

Back 24

erosional features such as canyons and rivers channels must be younger that the rock they erode

Front 25

conformity

Back 25

represents no missing time between formations

Front 26

unconformity

Back 26

represents missing time in the "rock record"

Front 27

disconformity

Back 27

contact is parallel, but the contact surface shows signs of erosion

Front 28

angular unconformity

Back 28

underlying layers are tilted relative to overlying layers, represents missing tie due to tectonic event

Front 29

nonconformity

Back 29

contact between eroded igneous or metamorphic layer and overlying sedimentary rocks

Front 30

absolute age datin

Back 30

determining the actual age for geologic events or formations

Front 31

alpha decay

Back 31

loss of a ______ particle(2p and 2n)

Front 32

beta decays

Back 32

loss of ________ particle, N becomes P

Front 33

electron capture

Back 33

_____ obtained by the nucleus, P becomes N

Front 34

half life

Back 34

the time it takes for half of the radioactive element in a sample to decay from parents to daughter, varies from seconds to billions of years

Front 35

atomic mass

Back 35

number if proteins in the nucleus of an atom

Front 36

atomic number

Back 36

number if protons in the nucleus of an atom

Front 37

earth forms

Back 37

hadea(timeline)

Front 38

oceans form and first continent

Back 38

archean(timeline)

Front 39

oxygen becomes abundant in atmosphere and snowball earth

Back 39

proterzoic(timeline)

Front 40

cambrian explosion

Back 40

phan, pale,cambrian (timeline)

Front 41

1st coal begins to form

Back 41

phan, pale,penn and miss(timeline)

Front 42

largest mass extinction

Back 42

phan, meso(timeline)

Front 43

2nd largest mass extinction

Back 43

phan, meso,

Front 44

1st human civilzation

Back 44

pahn, ceno,

Front 45

today

Back 45

phan, cezo,quaternary