Rock's Flashcards

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1
Q

What r the 3 rock types

A

Igneous sedimentary and metamorphic

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2
Q

How r igneous rocks formed?

A

When magma rises from the mantle and reaches the surface ,it cool very slowly and become ricm

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3
Q

How is intrusive igneous rock formed

A

When the magma becomes trapped below the surface and cools very slowly

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4
Q

How is extrusive rock formed

A

When the magma reaches the surface and cools and form

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5
Q

How is sedimentary rock formed

A

Sedimentary is made when pieces of rock,remains of dead animals and plants become compressed and cemented together to form a rock

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6
Q

What is strata

A

Strata is the layers of rocks dead remains of animals and plants

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7
Q

How is metaphoric rock formed

A

It it formed when igneous or sedimentary rock when they come into contact with a great heat a due to the pressure become a new rock

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8
Q

Examples of igneous sedimentary and metamorphic rock

A

Igneos:granite basalt
Sedimentary:sandstone limestone
Metaphoric:marble

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9
Q

What do rocks provide us with

A

They provide us with important natural resources

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10
Q

What is drilling

A

Drilling is the process of boring down into the earths crust to extract oil and gas

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11
Q

What is the environmental and economic impact of drilling?

A

Environmental:onshore and offshore oil spills cause damage to the local environment
Economic:the corribe okl and gas field project off the mayo coast and has invested of almost €4.3 billion

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12
Q

What is quarrying

A

It is the process of removing rock sand gravel or minerals from the grohnd

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13
Q

Environmental and economic impact of quarrying

A

Environmental:large quantities of dust are created which can cause air pollution
Economic:quarrying has an important impact on the irish economy and has employed 10,000 people and made over €1 billion

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14
Q

What is shaft mining

A

This si the process of drilling vertically into the earth to gain access to mineral beneath the surface

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15
Q

Environmental and economic impacts of shaft mining

A

Environmental:underground mining allow allows companies to dig for coal lead zinc deeper into the ground and the dust can cause pollution to air

Economic:the company pays €38 million in taxes annually and surports 730 jobs direactly

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