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When the percentage of a felsic mineral in a rock increases what will the color of the rock become?
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What mineral composition is most characteristic of felsic rocks?
felsic is orthoclase, quartz, and biotite. mafic is olivine, pyroxene, and calcium rich plagioclase. I am still researching intermediate.
How does fractional crystallization lead to magmatic differentiation?
As a magma crystallizes it undergoes fractional crystallization in which mafic minerals crystallize first and felsic minerals crystallize last. Therefore, as fractional crystallization occurs the magma becomes increasingly less mafic and increasingly more felsic. The viscosity also increases as a magma becomes more felsic.
Is pegmatite felsic or mafic?
It is felsic because it is lightly colored. Most rocks that are light are also felsic. The exception is obsidian which is dark and felsic.
Does Krakatoa have felsic magma or mafic?
felsic
Is Felsic a Intrusive or Extrusive Rock?
It can be either. The term felsic describes the composition of the rock, not where it forms. The general category for intrusive felsic rock is granite while extrusive felsic rock is rhyolite.
Is amphibolite mineral a felsic mafic or intermidate?
Is mineral amphibolite a felsic, mafic or intermidiate in term of color
What is the mafic mineral and felsic mineral?
First of all there is no such thing as a mafic or a felsic "mineral". There can be mafic and felsic rocks.Mafic rocks have a high magnesium and iron content.Felsic rocks enriched with lighter elements such as oxygen and silicon.
Is olivine mafic or felsic?
Olivine is a mafic mineral. It is most abundant in ultramafic rocks.
What mineral composition is most characteristic of felsic rocks?
felsic is orthoclase, quartz, and biotite. mafic is olivine, pyroxene, and calcium rich plagioclase. I am still researching intermediate.
What is the difference between felsic intermediate and mafic igneous rocks?
Silica content increases from mafic to felsic, and Mg and Fe content decreases. These differences affect things such as viscosity, density and colour. Felsic magmas are the most viscous and least dense, and felsic rocks are the lightest in colour.
What happens if the percentage of felsic minerals in a rock increase?
it becomes darker and density will decrease (a)
Mafic mineral low or high density?
Mafic magma and rock are higher in density that felsic magma and rock.
What is the mineral composition of an intermediate igneous rock?
felsic and something else i do not remember the second one.
What is light colored ofrten intrusive igneous rock containing a high percentage of silica are called?
felsic
How does fractional crystallization lead to magmatic differentiation?
As a magma crystallizes it undergoes fractional crystallization in which mafic minerals crystallize first and felsic minerals crystallize last. Therefore, as fractional crystallization occurs the magma becomes increasingly less mafic and increasingly more felsic. The viscosity also increases as a magma becomes more felsic.
Is pegmatite felsic or mafic?
It is felsic because it is lightly colored. Most rocks that are light are also felsic. The exception is obsidian which is dark and felsic.
Does Krakatoa have felsic magma or mafic?
felsic
