What Is Felsic Composition?
Felsic Refers to Silicate Minerals, Magma, and Rocks Which Are Enriched in the Lighter Elements Such as Silicon, Oxygen, Aluminium, Sodium, and Potassium...
Felsic refers to silicate minerals, magma, and rocks which are enriched in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. ... Felsic magma or lava is higher in viscosity than mafic magma/lava. Felsic rocks are usually light in color and have specific gravities less than 3.
What is felsic and what is its composition?
Compilations of many rock analyses show that rhyolite and granite are felsic, with an average silica content of about 72 percent; syenite, diorite, and monzonite are intermediate, with an average silica content of 59 percent; gabbro and basalt are mafic, with an average silica content of 48 percent; and peridotite is ...
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What is the difference between felsic and mafic?
Mafic minerals are usually dark in color and have relatively high specific gravities (greater than 3.0). ... Felsic minerals are usually light in color and have specific gravities less than 3.0. Common felsic minerals include quartz, muscovite mica, and the orthoclase feldspars.
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