Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

EAS 210 > EAS 210 - Midterm 1 Sample 1 > Flashcards

EAS 210 - Midterm 1 Sample 1 Flashcards

1
Q

Which of the following minerals has the greatest hardness?
a. apatite
b. calcite
c. gypsum
d. talc
e. potassium feldspar

A

e. potassium feldspar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What types of bonding are present in quartz?
a. ionic
b. metallic
c. covalent
d. covalent and van der Waals
e. metallic and ionic

A

c. covalent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The hardness of gypsum on the Moh scale is
a. H = 1
b. H = 2
c. H = 3
d. H = 4
e. H = 5

A

b. H = 2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Generally, the least reliable clue to a mineral’s identity is
a. cleavage
b. colour
c. density
d. streak
e. lustre

A

b. colour

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The mineral property of cleavage
a. is found in all minerals
b. is parallel to potential crystal faces
c. produces curved surfaces
d. always forms planes at right angles
e. all of the above

A

b. is parallel to potential crystal faces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

_______ is a silicate mineral
a. calcite
b. muscovite
c. pyroxene
d. coal
e. b and c

A

e. b and c

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The mineral biotite is an example of a ______
a. double chain silicate
b. framework silicate
c. sheet silicate
d. single chain silicate
e. a mineral with isolated tetrahedra

A

c. sheet silicate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Olivine is composed of ______ silica tetrahedra
a. isolated
b. singe chains of
c. double chains of
d. conitnuous sheets of
e. a 3-D framework of

A

a. isolated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the ratio of the number of oxygen to silicon atoms in a mineral with isolated silica tetrahedra?
a. 4
b. 3
c. 2.5
d. 2
e. 1.5

A

a. 4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The ion radical that is a part of carbonate minerals is:
a. (CO)2-
b. (CaO3) 2-
c. (CO3) 2-
d. (CaO2) 2-
e. (CO2) 3-

A

c. (CO3) 2-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which of the following minerals contains magnesium?
a. calcite
b. dolomite
c. gypsum
d. halite
e. anhydrite

A

b. dolomite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The ion radical that is part of sulphate minerals is:
a. (SO3) 3-
b. (SO4) 2-
c. (SO2) 2-
d. (SO2) 4-
e. (SO4) 3-

A

b. (SO4) 2-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

______ is an oxide mineral
a. corundum
b. anhydrite
c. gypsum
d. pyrite
e. sylvite

A

a. corundum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

_____ is not a sulfide mineral
a. galena
b. pyrite
c. sphalerite
d. chalcopyrite
e. hematite

A

e. hematite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Most diamonds are formed in the _____
a. upper crust
b. lower crust
c. upper mantle
d. lower mantle
e. outer core

A

c. upper mantle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The phaneritic form of rhyolite is ______
a. granite
b. granodiorite
c. diorite
d. gabbro
e. peridotite

A

a. granite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Which mineral is most abundant in the upper mantle?
a. peridotite
b. olivine
c. kyanite
d. amphibole
e. pyroxene

A

b. olivine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Basalt is normally derived from:
a. dry melting of crustal rocks
b. dry melting of upper mantle rocks
c. wet melting of crustal rocks
d. wet melting of upper mantle rocks
e. none of the above

A

b. dry melting of upper mantle rocks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

A course-grained, igneous rock containing quartz and K-feldspar is: ______
a. rhyolite
b. granite
c. diorite
d. andesite
e. gabbro

A

b. granite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The tecture of igneous rocks with grains that cannot be seen without magnification is:
a. aphanitic
b. porphyitic
c. phaneritic
d. apathetic
e. apocalyptic

A

a. aphanitic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

A _______ is an example of a concordant intrusion
a. volcanic pipe
b. dike
c. batholith
d. sill
e. stock

A

d. sill

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Which of the following igneous rocks has the same chemical composition and
mineralogy as a granite?
a. andesite
b. diorite
c. gabbro
d. rhyolite
e. quartz

A

d. rhyolite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Which of the following mountain chains is made up primarily of volcanoes formed at an ocean-continent convergence zone?
a. andes
b. appalachians
c. rocky mountains
d. himalayas
e. alps

A

a. andes

24
Q

Which of the following statements is true?
a. Felsic rocks contain less silica than mafic rocks
b. Felsic rocks melt at higher temperature than mafic rocks
c. Felsic rocks tend to be lighter-coloured than mafic rocks
d. Felsic rocks contain more iron than mafic rocks
e. Felsic rocks contain more magnesium than mafic rocks

A

c. Felsic rocks tend to be more light-coloured than mafic rocks

25
Q

Which of the following statements about igneous rocks is true?
a. Extrusive rocks have larger crystals than intrusive rocks
b. Extrusive rocks cool more slowly than intrusive rocks
c. Igneous rocks originate deep in the crust or upper mantle
d. Intrusive rocks form by crystallization of a lava
e. Extrusive rocks have a different chemical composition to intrusive rocks

A

c. Igneous rocks originate deep in the crust or upper mantle

26
Q

An igneous rock that contains large crystals in a finer matrix is called (a):
a. granite
b. obsidian
c. porphyry
d. scoria
e. pumice

A

c. porphyry

27
Q

Which of the following minerals is more likely to be found in felsic than in other types of igneous rocks?
a. olivine
b. plagioclase feldspar
c. pyroxene
d. quartz

A

d. quartz

28
Q

Which of the following statements is true?
a. Lava viscosity increases as silica content decreases.
b. Lava viscosity increases as temperature decreases.
c. The more gas lava contains, the less violent will be its eruption.
d. All of the above statements are true.

A

b. Lava viscosity increases as temperature decreases.

29
Q

The negative feature/depression found at the top of most central volcanoes is called a :
a. caldera
b. crater
c. diatreme
d. fissure
e. plug

A

b. crater

30
Q

Which of the following igneous rock textures are phenocrysts typically associated with?
a. Porphyritic
b. Phaneritic
c. Aphanitic
d. Pyroclastic
e. Amygdaloidal

A

a. Porphyritic

31
Q

As sediment is transported downstream, the grains
a. tend to become less well sorted
b. tend to become more angular
c. tend to become smaller
d. tend to become larger
e. none of the above

A

c. tend to become smaller

32
Q

The rate of weathering is affected by
a. the climate
b. the rock type
c. the soil
d. the elevation
e. all of the above

A

e. all of the above

33
Q

Which of the following is NOT a type of chemical weathering?
a. hydrolysis
b. oxidation
c. dissolution
d. sheeting
e. dissolving

A

d. sheeting

34
Q

As sediment is transported downstream, the particles _____
a. tend to become rounded
b. tend to become smaller
c. tend to become rounded and smaller
d. tend to become angular and smaller

A

c. tend to become rounded and smaller

35
Q

______ is an example of a traditional sedimentary environment.
a. A reef
b. A beach
c. A salt lake
d. The continental shelf
e. A sand dyne in a desert

A

b. A beach

36
Q

Which of the following lists is written in order of increasing particle/grain size?
a. conglomerate, sandstone, mudstone
b. mudstone, sandstone, conglomerate
c. sandstone, conglomerate, mudstone
d. sandstone, mudstone, conglomerate
e. mudstone, conglomerate, sandstone

A

b. mudstone, sandstone, conglomerate

37
Q

Which of the following is a clay mineral?
a. amphibole
b. calcite
c. hematite
d. kaolinite
e. zeolite

A

d. kaolinite

38
Q

Which of the following is not a clastic sedimentary rock?
a. arenite
b. conglomerate
c. limestone
d. sandstone
e. breccia

A

c. sandstone

39
Q

Sediment with an average grain size of 0.1 mm would be called _____
a. silt
b. clay
c. sand
d. mud
e. ooze

A

c. sand

40
Q

Sedimentary rocks that owe their origin at least in part to the activity of organisms are _____
a. biochemical
b. chemical
c. clastic
d. pyroclastic
e. aphanitic

A

a. biochemical

41
Q

Which of the following minerals is found in limestone?
a. biotite
b. calcite
c. garnet
d. gypsum
e. sylvite

A

b. calcite

42
Q

An example of a biochemical sedimentary rock is _____
a. breccia
b. evaporite
c. limestone
d. petroleum
e. potash

A

c. limestone

43
Q

Which of the following is used in fertilizer production?
a. dolomite
b. gypsum
c. halite
d. potash
e. chert

A

d. potash

44
Q

The last group of minerals to precipitate in evaporite formation are _____
a. carbonates
b. gypsum
c. halite
d. potassium salts
e. sulphides

A

d. potassium salts

45
Q

Most pertroleum is derived from organic matter deposited in ______
a. marine sediments
b. inland swamps
c. river
d. deserts
e. the upper mantle

A

a. marine sediments

46
Q

Which of the following rocks represents the lowest metamorphic grade?
a. gneiss
b. phyllite
c. schist
d. slate
e. mimatite

A

d. slate

47
Q

The sedimentary precursor of a slate is ______
a. sandstone
b. limestone
c. arkose
d. quartzite
e. shale

A

e. shale

48
Q

______ metamorphism begins with low grade rocks and produces high grade rocks
a. Reprobate
b. Retrograde
c. Prograde
d. Regrade
e. Probate

A

c. Prograde

49
Q

A shale undergoes regional metamorphism. Which combination of index mineral and rock does not occur?
a. chlorite - slate
b. sillimanite - phyllite
c. garnet - schist
d. sillimanite - gneiss
e. kyanite - schist

A

b. sillimanite - phyllite

50
Q

Which of the following metamorphic rocks is non-foliated?
a. gneiss
b. quartzite
c. schist
d. slate
e. phyllite

A

b. quartzite

51
Q

Metamorphic minerals are aligned in response to _____
a. differential stress
b. uniform stress
c. uniform pressure
d. high temperatures
e. none of the above

A

a. differential stress

52
Q

A temperature of 120°C is measured at the bottom of a 3000 m deep geothermal well. The geothermal gradient is ____°C/km
a. 10
b. 20
c. 30
d. 40
e. 50

A

d. 40

53
Q

_____ is a metamorphic rock formed in the brittle part of a fault in the upper crust.
a. Mylonite
b. Cataclasite
c. Clathrate
d. Quartzite
e. Granulite

A

b. Cataclasite

54
Q

A shield is a region of crystalline rock exposed at the surface that has not been affected by tectonics for approximately ____ million years
a. 110
b. 320
c. 540
d. 2500
e. 4000

A

d. 2500

55
Q

The rock formed by metamorphism of sandstone is _____
a. slate
b. quartz
c. quartzite
d. kyanite
e. granulite

A

c. quartzite

EAS 210 (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions