U2-Bowens Reaction Series

Minerals with different colors can still be considered the same mineral because.....

• They are the same size.

• They are in the same shape.

• They have the same chemical formula.

• They have the same value

Tags

NGSS.MS-PS1-1

_____ is an igneous rock made up of the minerals quartz, mica, feldspar, and hornblende.

• granite
• basalt
• pumice
• gneiss

According to Bowen's Reaction Series, what mineral assemblage describes a mafic, igneous rock? 

• Quartz, K-spar, biotite, muscovite, some amphibole
• Quartz, some k-spar, so Na-rich plagioclase, some pyroxene, some amphibole
• Ca-rich plagioclase, some olivine, pyroxene, amphibole
• Mostly olivine, some pyroxene and amphibole, Ca-rich plagioclase

According to BRS, the temperature range that one would most likely find a rock that contains olivine and a little bit of biotite, and no quartz would be:

• 750-900 degrees
• 900-1000 degrees
• 1000-1100 degrees
• 1100-1200 degrees

Which of the following pairs of igneous rocks have the same mineral composition?

• Granite and Rhyolite
• Basalt and Pegmatite
• Pumice and Andesite
• Granite and Basalt

The dominant minerals in felsic rock are _____ and the dominant minerals in ultramafic rocks are ____.

• Felsic - Quartz and K-spar; Ultramafic - Olivine and pyroxene
• Felsic - Olivine and Ca-rich plagioclase; Ultramafic - both micas
• Felsic - Na-rich plagioclase and amphibole; Ultramafic - Olivine and quartz
• Felsic - Quartz and K-spar; Ultramafic - Ca-rich plagioclase and Pyroxene

Tags

NGSS.MS-ESS2-1

Which of the following is FALSE regarding Bowen’s Reaction Series (BRS)?

• Olivine crystallizes out of a ultra-mafic magma at high temperatures
• Pyroxene crystallizes out of a mafic magma at a lower temperature than amphibole
• Ca-rich feldspar crystallization occurs at higher temperatures than Na-rich feldspar
• Quartz crystallizes at a lower temperature than all other minerals