Igneous Rocks

Front

What is the texture of igneous rocks with a grain size less than 1mm?

Back

Fine

Front

What type of rock is formed from the solidification of magma or lava?

Back

Igneous

Front

Where is magma located in relation to the Earth's surface?

Back

Below ground

Front

What texture is most likely to form from the rapid cooling of lava?

Back

Glassy

Front

What is the mineral composition of mafic igneous rocks?

Back

Mafic

Front

What is the difference between magma and lava?

Back

Magma is molten rock beneath the Earth's surface, while lava is molten rock that has erupted onto the surface.

Front

What are the two main types of igneous rocks?

Back

Intrusive (plutonic) and extrusive (volcanic) rocks.

Front

What is an example of an intrusive igneous rock?

Back

Granite

Front

What is an example of an extrusive igneous rock?

Back

Basalt

Front

How does the cooling rate of magma affect the texture of igneous rocks?

Back

Slower cooling allows for larger crystals to form, resulting in a coarse texture, while rapid cooling results in a fine or glassy texture.