Anonymous
Anonymous asked in Science & MathematicsEarth Sciences & Geology · 8 years ago

Earth science homework help?

I have a couple questions on my homework I can't find in my book.

1. Would you be likely to find rocks with olivine and calcium rich feldspar together?

2. how is partial melting related to fractional crystallization?

3. why is it important to know the silica content of a mineral?

Thank you!!

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  • M
    Lv 7
    8 years ago
    Favorite Answer

    1. Would you be likely to find rocks with olivine and calcium rich feldspar together?

    yes, mafic rocks contain calcium rich feldspar and olivine

    2. how is partial melting related to fractional crystallization?

    partial melting is when you heat a rock the felsic mineral melt first

    3. why is it important to know the silica content of a mineral?

    silica content relates so the viscosity of lava, explosiveness of the volcano, and what minerals form

    Source(s): geology major
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