Bowen's Reaction Series

Which of the following minerals is the last to melt according to Bowen's Reaction Series?

• Olivine

• Pyroxene (Augite)

• Amphibole (Hornblende)

• Quartz

Which mineral is part of the Discontinuous Reaction Series in Bowen's Reaction Series?

• K-Feldspar

• Na-Plagioclase (Albite)

• Biotite

• Ca-Plagioclase (Anorthite)

What type of minerals will form at the end of both reaction series?

• Minerals that will continue to react with the remaining melt

• Minerals that will no longer react with the remaining melt

• Minerals that are unstable at the surface

• Minerals that are rich in iron

Tags

NGSS.HS-PS1-5

What does the discontinuous reaction series show?

• The crystallisation sequence of mafic minerals as temperature decreases.

• The melting sequence of mafic minerals as temperature increases.

• The crystallisation sequence of felsic minerals as temperature decreases.

• The melting sequence of felsic minerals as temperature increases.

Which mineral is the first to crystallize in the discontinuous reaction series?

• Biotite

• Amphibole

• Pyroxene

• Olivine

What may occur if magma cools rapidly?

• Reactions may be incomplete, so high temperature minerals survive.

• Reactions may be complete, so high temperature minerals disappear.

• Low temperature minerals may form first.

• The magma may not crystallize at all.

Tags

NGSS.HS-ESS2-3

NGSS.HS-PS1-4

Which two minerals are involved in the continuous reaction series of plagioclase feldspar?

• Anorthite (Ca) and Albite (Na)

• Quartz (Si) and Orthoclase (K)

• Biotite (Mg) and Muscovite (Al)

• Hornblende (Ca) and Augite (Fe)

What happens to the percentage of sodium in the melt as plagioclase forms at higher temperatures?

• It decreases

• It remains the same

• It increases

• It fluctuates

In which type of rocks is anorthite found according to the continuous reaction series?

• Intermediate/silicic rocks

• Ultramafic/mafic rocks

• Sedimentary rocks

• Metamorphic rocks

In which type of rocks is albite found according to the continuous reaction series?

• Ultramafic/mafic rocks

• Sedimentary rocks

• Intermediate/silicic rocks

• Metamorphic rocks