Igneous rocks Flashcards by Keioni Unknown | Brainscape

Q

What is the composition of microgranite?

A

Silicic

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Q

What is the composition of granite?

A

Silicic

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Q

What is the composition of rhyolite?

A

Silicic

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Q

What is the composition of diorite?

A

Intermediate

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Q

What is the composition of microdiorite?

A

Intermediate

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Q

What is the composition of andesite?

A

Intermediate

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Q

What is the composition of gabbro?

A

Mafic

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Q

What is the composition of dolerite?

A

Mafic

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Q

What is the composition of basalt?

A

Mafic

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Q

What is the composition of peridotite?

A

Ultramafic

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Q

What crystal size is granite?

A

Coarse

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Q

What crystal size is microgranite?

A

Medium

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Q

What crystal size is rhyolite?

A

Fine

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Q

What crystal size is diorite?

A

Coarse

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Q

What crystal size is microdiorite?

A

Medium

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Q

What crystal size is andesite?

A

Fine

Q

What crystal size is gabbro?

A

Coarse

Q

What crystal size is dolerite?

A

Medium

Q

What crystal size is basalt?

A

Fine

Q

What crystal size is peridotite?

A

Coarse

Q

What crystal size forms at volcanic extrusive?

A

Glassy

Fine

Q

What crystal size forms at minor intrusions?

Hypabyssal

A

Medium

Q

What crystal size forms at major intrusions?

Plutonic

A

Coarse

Q

What is the measurement for fine grained?

A

<1mm

Q

What is the measurement for medium grained?

A

1-5mm

Q

What is the measurement for coarse grained?

A

> 5mm