Human Interaction with the Rock Cycle
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Transcript Human Interaction with the Rock Cycle
Human Interaction with the Rock
Cycle
5th year Geography
Learning Outcome
• Identify the economic value and uses of Rocks
• Examine Human Interaction with the Rock
Cycle during the process of Quarrying
Economic Value of Rocks
• Recreation; Hill walking, Climbing
• Tourism; Burren
• Decorative Pieces; Fireplaces, Headstones,
Worktops
• Construction Materials; Gravel, Limestone
• Metals; Lead, Zinc, Gold
• Energy Source; Coal, Oil, Gas, Geothermal
Uses of Certain Rocks
Rock
Use
Basalt
Road Chippings
Sand
Glass
Limestone
Fertiliser
Slate
Roofing
Coal/Oil
Heating
China Clay
Pottery
Quarrying
• Important Resources
• Construction Industry
• Granite, Limestone and Marble are the most
common rocks quarried in Ireland
What is Quarrying?
• Removal of Rocks from the Earths Surface
• 400 active quarries in Ireland
• In recent year with the improved
developments in infrastructure in Ireland,
there has been an increased demand for
quarried materials
•
Chapter 5: The Rock Cycle
Methods of quarrying
I. Plug and feather
drilling holes
split the rock
extracting large pieces, e.g. floor
covering
II. Explosive
extracting large and small pieces of
rock
III. Channelling
machinery cuts large slices of rock
metamorphic rock such as marble
5: The Rock Cycle
Positive impactsChapter
of quarrying
Direct employment
Construction
Indirect employment
Chapter
5: The Rock Cycle
Negative impacts
of quarrying
Visual pollution
Noise pollution
Heavy machinery damage to infrastructure
Dust pollution
Water pollution
Disused quarries
Case Study; Carrara Marble
Tuscany, Italy
White or blue-grey marble
Used since the time of ancient Rome
Statue of David – Michelangelo
Exported all around the world
Construction of buildings
Warm countries
Reflect light
Create an air of coolness
Major Case Study
• Tara Mines, Co Meath.
Homework
• Pg 59 – 61
• Q; 1, 6, 7, 10
• In Exercise Copy