Earth Science Igneous rocks

Igneous rocks can be identified based on there

Color, texture and grain size

The oceanic crust is mostly made up of

Basalt

Earths crust is made up of plates, the plates are made up of

Granite

Large grain size =

Slow cooling which mean the rock formed below ground

What two preocces of are required to make a igneous rock from the rock cycle?

Cooling and solidification of magma or lava

The difference between crystal sizes between intrusive igneous rocks en extrusive igneous rock is?

Intrusive igneous rocks have larger crystals while extrusive has smaller

Mafic is

Dark colored igneous rocked and are rich in Iron and Magnesium

Felsic is

Light colored igneous rocks and rich in aluminum

Small grain size =

Rapid cooling, the rock formed above ground

Intrusive igneous or plutonic rocks

are rocks that form below earths surface

Extrusive igneous rocks or volcanic rocks are

Rocks that form above earths surface

Magmas is a term for

Melted rock below earths surface

Lava is a term for

Melted rock above earths surface

Igneous rocks that have a vesicular texture are full of

Holes where gas escaped as the rock was cooling

Igneous rocks for when

Melted rock cools an solicites