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vesicular rhyolite, rhyolite, granite, and pegmatite!
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What minerals are present in felsic rocks and mafic rocks?
Felsic refers to igneous rocks that are relatively high in silica and aluminum. Mafic refers to igneous rocks that are higher in magnesium and iron than felsic rocks.
What rocks are felsic?
Felsic rock are igneous rocks that are rich of quartz, orthoclase and plagioclase minerals. Here is the list of felsic rocks: granites, rhyolites, aplites, and pegmatites.
What does the word felsic mean?
Feldspar can be a variety of colors: clear, gray, white, tan, pink, brown, or red.
What are the terms felsic and mafic used by geologists to describe?
They are descriptive terms as to the relative silica content of igneous rocks. Igneous rock which is high in silica is referred to as felsic. Igneous rock which is relatively low in silica is referred to as mafic.
Light colored igneous rocks that are rich in aluminum potassium silicon and sodium are called what kind of rocks?
They're described as felsic igneous rocks.
What minerals are present in felsic rocks and mafic rocks?
Felsic refers to igneous rocks that are relatively high in silica and aluminum. Mafic refers to igneous rocks that are higher in magnesium and iron than felsic rocks.
Can igneous rock be felsic?
Yes. Felsic is a term used to describe the composition of some igneous rocks.
What rocks are felsic?
Felsic rock are igneous rocks that are rich of quartz, orthoclase and plagioclase minerals. Here is the list of felsic rocks: granites, rhyolites, aplites, and pegmatites.
What does the word felsic?
The word felsic is used to describe igneous rocks that are rich in silica and alkali feldspar. Such rocks tend to be light in color and have a lower density than other igneous rocks.
What igneous rock family contains the highest proportion of silica?
Felsic igneous rock contains the highest proportion of silica. Granites are felsic igneous rocks.
What does the word felsic mean?
Feldspar can be a variety of colors: clear, gray, white, tan, pink, brown, or red.
Which igneous rock has the lowest silica content?
Felsic Rocks
What is a Precambrian's shield?
How are mafic and felsic igneous rocks different
What are the terms felsic and mafic used by geologists to describe?
They are descriptive terms as to the relative silica content of igneous rocks. Igneous rock which is high in silica is referred to as felsic. Igneous rock which is relatively low in silica is referred to as mafic.
How are light colored igneous rocks different?
Igneous rocks are divided into four groups based on their composition (often determined by observing density and color).Felsic (also called Silicic) igneous rocks have a lower density, and are generally lighter in color (white, tan, pink). They have a higher silica content and a lower iron and magnesium content than the other types of rock. Granite and rhyolite are felsic igneous rocks.Intermediate igneous rocks have a density between felsic and mafic rocks. They have a high silica content and a medium iron and magnesium content. These rocks are usually gray or a similar, medium-toned color. Andesite and diorite are intermediate igneous rocks.Mafic igneous rocks are quite dense, and have a much higher iron and magnesium content than felsic or intermediate igneous rocks. Mafic rocks are usually black or blackish. Gabbro and basalt are mafic igneous rocks.Ultramafic igneous rocks are the densest type, and have the highest iron and magnesium content. Ultramafic rocks are usually (surprise!) green. Peridotite is an ultramafic igneous rock.
Light colored igneous rocks that are rich in aluminum potassium silicon and sodium are called what kind of rocks?
They're described as felsic igneous rocks.
Light colored igneous rocks are part of what family?
The felsic family.
