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7.4: Activity 7C - Determining Igneous Rock Compositions

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    14554

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    7.18.png
    Figure 7.18: Activity 7C, determine the igneous compositions of rocks A-D.

    1. For Rock A, determine:

    1. The relative percentage of SiO2 vs. Fe and Mg:

    1. The Color Index and associated igneous composition:

    1. For Rock B, determine:

    1. The relative percentage of SiO2 vs. Fe and Mg:

    1. The Color Index and associated igneous composition:

    1. For Rock C, determine:

    1. The relative percentage of SiO2 vs. Fe and Mg:

    1. The Color Index and associated igneous composition:

    1. For Rock D, determine:

    1. The relative percentage of SiO2 vs. Fe and Mg:

    1. The Color Index and associated igneous composition:

    Attributions

    • Figure 7.18: “Igneous Compositions” (CC-BY 4.0; Chloe Branciforte, own work)

    This page titled 7.4: Activity 7C - Determining Igneous Rock Compositions is shared under a CC BY-SA 4.0 license and was authored, remixed, and/or curated by Chloe Branciforte & Emily Haddad (ASCCC Open Educational Resources Initiative) .