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Based on the chart: a magma having the chemical components that could eventually crystallize into muscovite, K-feldspar, Na-plagioclase and quartz is probably going to be/have: Composition Rock types Percent by volume 100 80 60 40 20 iron-rich low-viscosity 75% Potassium feldspar Muscovite 700°C potentially explosive always plutonic Felsic (Granitic) Granite/Rhyolite Quartz high crystallization and melting point Biotite Intermediate (Andesitic) Diorite/Andesite Sodium-rich Plagioclase feldspar Amphibole Mafic (Basaltic) Gabbro/Basalt Calcium-rich Pyroxene Increasing silica (SiO₂) Increasing potassium and sodium Increasing iron, magnesium and calcium Temperature at which melting begins Ultramafic Peridotite/Komatiite Olivine 40% 1200°C

Based on the chart: a magma having the chemical components that could eventually crystallize into muscovite, K-feldspar, Na-plagioclase and quartz is probably going to be/have: Composition Rock types Percent by volume 100 80 60 40 20 iron-rich low-viscosity 75% Potassium feldspar Muscovite 700°C potentially explosive always plutonic Felsic (Granitic) Granite/Rhyolite Quartz high crystallization and melting point Biotite Intermediate (Andesitic) Diorite/Andesite Sodium-rich Plagioclase feldspar Amphibole Mafic (Basaltic) Gabbro/Basalt Calcium-rich Pyroxene Increasing silica (SiO₂) Increasing potassium and sodium Increasing iron, magnesium and calcium Temperature at which melting begins Ultramafic Peridotite/Komatiite Olivine 40% 1200°C

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Based on the chart: a magma having the chemical components that could eventually crystallize into muscovite, K-feldspar, Na-plagioclase and quartz is probably going to be/have: Composition Rock types Percent by volume 100 80 60 40 20 iron-rich low-viscosity 75% Potassium feldspar Muscovite 700°C potentially explosive always plutonic Felsic (Granitic) Granite/Rhyolite Quartz high crystallization and melting point Biotite Intermediate (Andesitic) Diorite/Andesite Sodium-rich Plagioclase feldspar Amphibole Mafic (Basaltic) Gabbro/Basalt Calcium-rich Pyroxene Increasing silica (SiO₂) Increasing potassium and sodium Increasing iron, magnesium and calcium Temperature at which melting begins Ultramafic Peridotite/Komatiite Olivine 40% 1200°C
Transcribed Image Text:Based on the chart: a magma having the chemical components that could eventually crystallize into muscovite, K-feldspar, Na-plagioclase and quartz is probably going to be/have: Composition Rock types Percent by volume 100 80 60 40 20 iron-rich low-viscosity 75% Potassium feldspar Muscovite 700°C potentially explosive always plutonic Felsic (Granitic) Granite/Rhyolite Quartz high crystallization and melting point Biotite Intermediate (Andesitic) Diorite/Andesite Sodium-rich Plagioclase feldspar Amphibole Mafic (Basaltic) Gabbro/Basalt Calcium-rich Pyroxene Increasing silica (SiO₂) Increasing potassium and sodium Increasing iron, magnesium and calcium Temperature at which melting begins Ultramafic Peridotite/Komatiite Olivine 40% 1200°C
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A felsic magma results in the formation of a rock with the dominating mineralogy of quartz, muscovite, K-feldspar, and Na-plagioclase. The magma composition is felsic (granitic) and the major rock types are Granite/Rhyolite.

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