Bowen's Reaction Series and Igneous Rock Composition

What is the first mineral to crystallize in a magma chamber as it cools?

• quartz

• olivine

• mica

If a magma chamber slowly cools to solid rock underground, where would you expect to find the ultramafic rocks located?

• at the top

• in the middle

• at the bottom

Tags

NGSS.HS-ESS2-3

Granitic (felsic) rocks are generally

• light colored

• dark colored

• rainbow glitter colored

As a magma chamber is cooling, where would you expect the first minerals to crystallize?

• at the top

• in the middle

• at the bottom

Which of the rocks below contains the most quartz?

• basalt

• gabbro

• granite

Tags

NGSS.MS-PS1-1

Minerals that crystallize at higher temperatures tend to be low in

• Iron

• Calcium

• Silicon

• Magnesium

Tags

NGSS.MS-PS1-1

Minerals that crystallize at lower temperatures tend to be low in

• Iron

• Potassium

• Silicon

• Oxygen

The mineral that melts first as rock heats up would be

• Calcium Plagioclase

• Potassium Feldspar

• Sodium Plagioclase

• Biotite

Which of the following would crystallize first as magma cools.

• Pyroxene

• Quartz

• Amphibole

• Sodium Plagioclase

Mafic rocks are composed of mostly

• silicon and calcium

• sodium and magnesium

• potassium and aluminum

• iron and magnesium