Limestone

Question 1

What is limestone primarily made up of?

Answer 1

Calcium carbonate (CaCO3)

Limestone is classified as a calcareous rock.

Question 2

What is the term used to describe rocks made primarily of calcium carbonate?

Answer 2

Calcareous rock

Question 3

Name a type of limestone found in Barbados.

Answer 3

Coral limestone

Question 4

What is oolitic limestone made up of?

Answer 4

Oolites or small egg-shaped grains of calcium carbonate

Question 5

Where is oolitic limestone commonly found?

Answer 5

The Bahamas and Turks and Caicos

Question 6

What characterizes white limestone?

Answer 6

Consists of almost pure calcium carbonate

Question 7

What does brown yellow limestone contain a high proportion of?

Answer 7

Mud and other materials

Question 8

During which geological period was Jurassic coralline limestone formed?

Answer 8

Between 120-150million years ago

Question 9

Where can Jurassic coralline limestone be found?

Answer 9

Cuba, Jamaica , Puerto Rico

Question 10

What is the primary composition of limestone?

Answer 10

Calcium carbonate

Question 11

What type of rock is limestone classified as?

Answer 11

Sedimentary rock

Question 12

How would you describe the hardness of limestone?

Answer 12

It is a hard rock

Question 13

What process affects limestone, leading to its weathering?

Answer 13

Carbonation

Question 14

What features does limestone have that affect its permeability?

Answer 14

A lot of cracks and joints

Question 15

What is limestone massively jointed?

Answer 15

It has many joints and cracks

Question 16

How is limestone formed?

Answer 16

From the remains of organic matter such as coral, shells, and plants

Question 17

What is the main raw material for manufacturing cement?

Answer 17

Limestone

Limestone is essential in the production of cement due to its calcium carbonate content.

Question 18

What is a primary source of fresh groundwater in Barbados?

Answer 18

Limestone

Limestone aquifers are crucial for water supply in regions like Barbados.

Question 19

How can limestone be utilized in construction?

Answer 19

It can be cut into blocks and crushed for aggregate

Limestone’s versatility makes it a valuable building material.

Question 20

What are Clints and Grikes?

Answer 20

Clints are outcrops of bare rocks; Grikes are gaps between the rocks

These features are typical in karst landscapes.

Question 21

What are limestone pavements?

Answer 21

Large areas of bare exposed limestone

These pavements are formed through the weathering of limestone.

Question 22

Define Dolines.

Answer 22

Large surface depressions formed by the solution or collapse of limestone

Dolines can vary in diameter and are significant in karst topography.

Question 23

What are swallow holes or sinks?

Answer 23

Smaller surface depressions where water disappears down the hole

These features are indicative of karst drainage systems.

Question 24

What are resurgent streams?

Answer 24

Streams that arise when limestone is underlaid by an impermeable rock, forcing water out into the open

This process creates springs or resurgent streams in karst regions.

Question 25

What is a dry valley?

Answer 25

A river valley without a river ## Footnote Dry valleys can occur in areas with significant limestone features.

Question 27

What is the main raw material for manufacturing cement?

Answer 27

Limestone ## Footnote Limestone is essential in the production of cement due to its calcium carbonate content.

Question 28

What is a primary source of fresh groundwater in Barbados?

Answer 28

Limestone ## Footnote Limestone aquifers are crucial for water supply in regions like Barbados.

Question 29

How can limestone be utilized in construction?

Answer 29

It can be cut into blocks and crushed for aggregate ## Footnote Limestone's versatility makes it a valuable building material.

Question 30

What are Clints and Grikes?

Answer 30

Clints are outcrops of bare rocks; Grikes are gaps between the rocks ## Footnote These features are typical in karst landscapes.

Question 31

What are limestone pavements?

Answer 31

Large areas of bare exposed limestone ## Footnote These pavements are formed through the weathering of limestone.

Question 32

Define Dolines.

Answer 32

Large surface depressions formed by the solution or collapse of limestone ## Footnote Dolines can vary in diameter and are significant in karst topography.

Question 33

What are swallow holes or sinks?

Answer 33

Smaller surface depressions where water disappears down the hole ## Footnote These features are indicative of karst drainage systems.

Question 34

What are resurgent streams?

Answer 34

Streams that arise when limestone is underlaid by an impermeable rock, forcing water out into the open ## Footnote This process creates springs or resurgent streams in karst regions.

Question 35

What is a dry valley?

Answer 35

A river valley without a river ## Footnote Dry valleys can occur in areas with significant limestone features.

Question 37

What are some underground features?

Answer 37

Caves, stalactites, stalagmites, and pillars ## Footnote These features are commonly formed in limestone environments.

Question 38

What is the composition of water seeping through limestone?

Answer 38

Rich in dissolved calcium carbonate ## Footnote This composition contributes to the formation of various cave features.

Question 39

What happens when water evaporates in caves?

Answer 39

It leaves behind a tiny deposit of calcite ## Footnote Calcite is a mineral that forms from calcium carbonate.

Question 40

What is a stalactite?

Answer 40

An icicle-like feature that forms from calcite deposits hanging from the ceiling of a cave ## Footnote Stalactites form when water drips down and evaporates, leaving calcite behind.

Question 41

What is a stalagmite?

Answer 41

A stumpy formation on the ground of a cave where calcite is deposited from dripping water ## Footnote Stalagmites grow upwards from the cave floor.

Question 42

What can happen to stalactites and stalagmites over thousands of years?

Answer 42

They might become joined to form a pillar or column ## Footnote This process illustrates the slow growth of cave formations.

Question 43

Fill in the blank: Water seeping through limestone is rich in dissolved _______.

Answer 43

calcium carbonate

Question 44

True or False: Stalactites form on the ground of a cave.

Answer 44

False ## Footnote Stalactites form from the ceiling, while stalagmites form on the ground.