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Sedimentary Rocks (Detrital, Chemical, Organic)

Total questions: 47

Worksheet time: 35mins

Name
Class
Date
1.

Most of the Earth's crust is made up of igneous rock. But most rock at the surface of the crust is what kind of rock?

a)

Igneous

b)

Sedimentary

c)

Metamorphic

d)

All kinds of rock

2.

Detrital rocks are...

a)

formed from magma

b)

deposited from a solution

c)

formed from sand and shells

d)

made up of broken fragments of other rocks

3.

Which description best fits the texture you can see in this rock?

a)

well sorted

b)

poorly sorted

c)

rounded clasts

d)

angular clasts

4.

What do angular particles of sediment indicate?  Choose 2

a)

It was carried a long distance

b)

It was carried by wind or water

c)

It was carried a short distance

d)

It was carried by ice

5.

What does a well sorted sand or sandstone indicate?

a)

it was deposited by wind and traveled a short distance

b)

it was deposited by ice and traveled a long distance

c)

it was deposited by wind and traveled a long distance

6.

Of the three kinds of sedimentary rocks, a rock that is made by precipitation of dissolved minerals from water is called

a)

Detrital sedimentary rock

b)

Organic sedimentary rock

c)

Chemical sedimentary rock

7.
What sized sediment makes shale?
a)
Sand
b)
Clay
c)
Cobble
8.
Which is smaller?
Clay or Silt
a)
Clay
b)
Silt
9.

What is the correct order in sizes from smallest to largest

a)

Clay

b)

Cobble

c)

Sand

d)

Silt

1)
2)
3)
4)
10.
What rock is made from sand?
a)
Siltstone
b)
Gravel
c)
Sandstone
11.
How is sediment classified/grouped?
a)
By color
b)
By hardness
c)
By size
12.
Sedimentary rocks are formed by
a)
Cooling of lava or magma
b)
Heat and pressure
c)
Compacting and cementing
13.
How is sediment formed?
a)
Weathering and Erosion
b)
Melting
c)
Pressure
14.
What is the breaking down of rocks?
a)
Weathering
b)
Clastic
c)
Vesicular
15.

Chemical rocks are...

a)

Made from heat

b)

Made when water evaporates and minerals crystallize

c)

Made from dead animals/plants

d)

Made from pieces of other rocks

16.
This rock is made of large bits of gravel cemented together. What type of sedimentary rock is it?
a)

Detrital

b)

Chemical

c)

Organic

17.
The process by which running water, wind, or ice carry away bits of broken-up rock
a)
weathering
b)
sediment
c)
erosion
d)
cememtation
18.

Which formation process do most sedimentary rocks follow?

a)

cementation, compaction, deposition, erosion

b)

erosion, compaction, cementation, deposition

c)

erosion, deposition, compaction, cementation

19.

Name this rock.

(a)  

20.
Sedimentary Rocks are often made up of other rocks and minerals.
a)
True
b)
False
21.

Name this rock

(a)  

22.

Which of the following is a kind of chemical sedimentary rock?

a)

Obsidian

b)

Limestone

c)

Coal

d)

Shale

23.

Detrital rocks are

a)

made up of broken fragments of other rocks

b)

formed from magma

c)

deposited from a solution

d)

all of the above

24.

Sandstone is a(n) ____ sedimentary rock.

a)

chemical

b)

detrital

c)

organic

d)

none of the above

25.

What kind of detrital rock forms in lakes?

a)

conglomerate

b)

sandstone

c)

shale

26.

What rock is formed by particles that are rapidly deposited and not transported very far?

a)

breccia

b)

conglomerate

c)

shale

d)

sandstone

27.

Which one of these rocks would indicated it was formed in fast moving, turbulent waters?

a)

Conglomerate

b)

Sandstone

c)

Shale

d)

Mudstone

28.

Which type of sedimentary rock is shale?

a)

Detrital

b)

Chemical

c)

Organic

29.

Which type of sedimentary rock is limestone?

a)

Detrital

b)

Chemical

c)

Organic

30.

Which type of sedimentary rock is sandstone?

a)

Detrital

b)

Chemical

c)

Organic

31.

Which type of sedimentary rock is rock salt?

a)

Detrital

b)

Chemical

c)

Organic

32.

Which type of sedimentary rock is siltstone?

a)

Detrital

b)

Chemical

c)

Organic

33.

Which type of sedimentary rock is coal?

a)

Detrital

b)

Chemical

c)

Organic

34.

Which type of sedimentary rock is conglomerate?

a)

Detrital

b)

Chemical

c)

Organic

35.

Which type of sedimentary rock is coquina?

a)

Detrital

b)

Chemical

c)

Organic

36.

Which type of sedimentary rock is travertine?

a)

Detrital

b)

Chemical

c)

Organic

37.

Which of the following applies to the basic constituents of halite, gypsum, and sylvite?

a)

transported as dissolved ions; deposited as detrital mud

b)

transported as detrital mud; deposited by evaporation

c)

transported as dissolved ions; deposited by evaporation

d)

transported and deposited as mud-sized particles

38.

________ is the most common type of chemical sedimentary rock.

a)

Limestone

b)

Chert

c)

Sandstone

d)

Shale

39.

Which of the following is NOT a type of limestone?

a)

Arkose

b)

Coquina

c)

Chalk

d)

Traverntine

40.

 Which type of limestone consists mainly of tiny, marine fossils composed of calcite?

a)

Dolostone

b)

Chert

c)

Coquina

d)

Chalk

41.

Which of the following is made of microcrystalline quartz?

a)

Coquina

b)

Dolostone

c)

Chert

d)

Gypsum

42.

Which evaporite, composed of calcium sulfate, is an important component of plasters and wallboard?

a)

Clay

b)

Gypsum

c)

Rock salt

d)

Halite

43.

Coal beds originate in ________.

a)

shallow lakes in a dry, desert region

b)

channels of fast-moving streams

c)

deep, marine basins below wave action

d)

freshwater coastal swamps and bogs

44.

Reorder the following stages of coal from first to last

a)

Peat

b)

Lignite

c)

Bituminous coal

d)

Anthracite

1)
2)
3)
4)
45.

The first stage in the formation of coal involves a substance composed of partially altered plant material called ________.

a)

lignite

b)

hummus

c)

anthracite

d)

peat

46.

Before coal has formed over millions of years, it is a wet, sampling of decaying plant material called...

a)

Peanut Butter

b)

Peat

c)

Mud

d)

Sedimentary Rock

47.

Which coal is the type we use mostly in the US?

a)

Lignite

b)

Sub-bituminous

c)

Bituminous

d)

Anthracite

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