felsic definition geology - EAS

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  1. Felsic From Wikipedia, the free encyclopedia In geology, felsic is an adjective describing igneous rocks that are relatively rich in elements that form feldspar and quartz. It is contrasted with mafic rocks, which are relatively richer in magnesium and iron.

    Felsic - Wikipedia

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    What does the word felsic mean?
    fel·sic. (fĕl′sĭk) adj. Relating to or containing a group of light-colored silicate minerals that occur in igneous rocks, including minerals of the feldspathoid group and the minerals quartz, feldspar, and muscovite. [ fel (dspar) + s (ilica) + -ic .] American Heritage® Dictionary of the English Language, Fifth Edition.

    Felsic - definition of felsic by The Free Dictionary

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    What does felsic and mafic mean?
    Mafic lava creates basalt while felsic lava produces andesitic and rhyolite rocks. Either in describing rocks or lava, mafic means that the lava or rock has less silica while felsic implies that the lava or rock has the most silica. 6. Mafic rocks are darker in color than felsic rocks.

    Felsic and Mafic - Explanation, Classification and FAQs

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    What does the word felsic?
    What does the word igneous mean? Fire formed. ... Felsic 2. Intermediate 3. Magic 4. Ultramafic. What is an example of a felsic igneous rock? Granite or rhyolite.

    What does felsic stand for?

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    Is felsic lava hotter than mafic lava?
    The tendency of felsic lava to be cooler than mafic lava increases the viscosity difference. Lava viscosity determines the kind of volcanic activity that takes place when the lava is erupted. The greater the viscosity, the greater the tendency for eruptions to be explosive rather than effusive.

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  3. Felsic Definition & Meaning | Dictionary.com

    https://www.dictionary.com/browse/felsic

    felsic [ fel-sik ] ???? High School Level adjective Geology. (of rocks) consisting chiefly of feldspars, feldspathoids, quartz, and other light-colored minerals. COMPARE MEANINGS mafic felsic …

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  4. Felsic | Geology Wiki | Fandom

    https://geology.fandom.com/wiki/Felsic
    • Felsic is a term that refers to silicate minerals, magmas, and rocks which are enriched in the lighter elements such as silica, oxygen, aluminum, sodium, and potassium. The term combines the words "feldspar" and "silica." Felsic minerals are usually light in color and have specific gravities less than 3. Common felsic minerals include quartz, muscovite, hornblende, orthoclase…
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  5. felsic – An Introduction to Geology

    https://opengeology.org/textbook/glossary/felsic

    Can refer to a volcanic rock with higher silica composition, or the minerals that make up those rocks, namely quartz, feldspar (both potassium feldspar and plagioclase feldspar ), and muscovite mica. Felsic rocks are lighter in color and contain more minerals that are light in color, but can contain some biotite and amphibole.

  6. Felsic - definition of felsic by The Free Dictionary

    https://www.thefreedictionary.com/felsic

    fel·sic (fĕl′sĭk) adj. Relating to or containing a group of light-colored silicate minerals that occur in igneous rocks, including minerals of the feldspathoid group and the minerals quartz, feldspar, and muscovite. [ fel (dspar) + s (ilica) + -ic .] American Heritage® Dictionary of the English Language, Fifth Edition.

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