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Online Quiz
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1

The bulk of our metallic mineral resources is associated with
A)metamorphic rocks
B)igneous rocks
C)weathered material
D)sedimentary rocks
2

Hydrothermal deposits of ore minerals form
A)from hot water circulating through rocks
B)where chemical weathering has concentrated ore by removing non-ore minerals
C)where igneous intrusions have baked rocks which they intruded
D)all of the above
3

Large feldspar crystals are abundant in what type of ore deposit?
A)pegmatite
B)sedimentary
C)metamorphic
D)weathered
4

Why might certain metals be considered renewable resources while others are nonrenewable?
A)renewable metals are being formed in the earth at a rate slower than our use of them
B)the renewable metals are those which have been recycled
C)the renewable metals are those which we are not presently using
D)the renewable metals are those which we expect to be mining from the sea floor
5

Which has the greatest world reserves (supply for the future)?
A)aluminum
B)copper
C)lead
D)zinc
6

Aluminum ore deposits are
A)residual deposits
B)metamorphic deposits
C)placer deposits
D)evaporites
7

A major type of non-metallic mineral deposit is
A)placer deposit
B)bauxite
C)evaporite
D)manganese nodule
8

In the U.S., recycling is an important source of what metal?
A)aluminum
B)lead
C)copper
D)all of the above
9

Lateritic weathering produces which ore deposit?
A)bauxite
B)placer
C)evaporite
D)kimberlite
10

Hydrothermal deposits are predominantly composed of what type of ore minerals?
A)evaporite
B)sulfide
C)oxide
D)pegmatite
11

Chromite forms
A)in pegmatite
B)in hydrothermal deposits
C)by crystal settling in a magma
D)as a placer deposit
12

Rock salt and rock gypsum are what kind of mineral deposit?
A)evaporite
B)hydrothermal
C)placer
D)pegmatite
13

Gold, diamonds, and tin oxide can occur as what kind of mineral deposit?
A)evaporite
B)hydrothermal
C)placer
D)pegmatite
14

Metamorphism of coal produces
A)gold
B)graphite
C)copper
D)gypsum
15

Banded iron formation is what kind of mineral deposit?
A)evaporite
B)hydrothermal
C)placer
D)sedimentary
16

Black smokers on the seafloor occur near
A)spreading ridges
B)oceanic trenches
C)subduction zones
D)d. all of the above
17

Diamonds are found in
A)evaporites
B)pegmatites
C)kimberlites
D)laterites
18

Which mineral/rock resource is the most intensively used in the U.S.?
A)sand and gravel
B)evaporites
C)rock gypsum
D)kimberlites
19

Manganese nodules form
A)in magmas
B)by lateritic weathering
C)near igneous intrusion
D)on the deep sea floor
20

Which ore deposit yields aluminum?
A)bauxite
B)pegmatite
C)evaporite
D)kimberlite





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