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Does magma having a silica content of 50 percent is more mafic than one having a silica content of 70 percent?
Wiki User
∙ 9y ago
Correct. The lower the silica content, the more mafic the magma is.
Wiki User
∙ 9y ago
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This type of magma has low silica content?
There are three types of magma that contains silica. Basaltic Magma has 50 percent silica, Andesitic Magma has 60 percent silica, and Granitic Magma has 70 percent silica.
What igneous compositions has the lowest silica content mafic ultra mafic intermediate or felsic?
Ultra mafic rocks have the least amount of silica.
Magma that is relatively thin dark colored and low in silica?
A low silica magma is called a "mafic" magma.
Where does felsic lava form at?
== == Felsic lava has a higher silica content than mafic lava. Felsic lava is slower moving (high viscosity) than the less viscous mafic lava. Mafic lava is higher in dark minerals and higher in the elements iron and magnesium.
What is the silica content in lapilli?
It varies. The term lapilli is applied to pyroclastic material between 2 and 64 mm in size, which does not necessarily indicate anything about composition. It can range anywhere from mafic to felsic, with silica content ranging from 45% to over 70% silica.
This type of magma has low silica content?
There are three types of magma that contains silica. Basaltic Magma has 50 percent silica, Andesitic Magma has 60 percent silica, and Granitic Magma has 70 percent silica.
Is quartz mafic?
No, we call something mafic if it has a relative low silica content. As quartz is 100% silica, it's not mafic, but felsic.
What igneous compositions has the lowest silica content mafic ultra mafic intermediate or felsic?
Ultra mafic rocks have the least amount of silica.
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.
Magma that is relatively thin dark colored and low in silica?
A low silica magma is called a "mafic" magma.
Where does felsic lava form at?
== == Felsic lava has a higher silica content than mafic lava. Felsic lava is slower moving (high viscosity) than the less viscous mafic lava. Mafic lava is higher in dark minerals and higher in the elements iron and magnesium.
Suppose a volcano that is about to erupt contains mafic magma. The mafic magma has a very low silica content. what types of igneous rocks will the volcano most likely form?
basalt
What is the silica content in lapilli?
It varies. The term lapilli is applied to pyroclastic material between 2 and 64 mm in size, which does not necessarily indicate anything about composition. It can range anywhere from mafic to felsic, with silica content ranging from 45% to over 70% silica.
What does low silica magma form?
Nealy all magma on Earth is originally low-silica, mafic magma. Most magma originates from the upper mantle, which is ultramafic, meaning it has a very low silica content. This rock may partially melt under certain conditions, forming mafic magma, which has a somewhat higher silica content than the mantle rock.
What is silica called?
Mafic lava
Which property of magma will change the viscosity?
Silica content determines viscosity. The higher the silica content the more viscous (slower moving). Ultramafic <45% silica Least viscous Mafic 45-52% Silica Intermediate 53-65% Silica Felsic >65% Silica Highly viscous
Which set of characteristics best describes mafic magma?
low silica content, thin and fluid, forms dark-colored rock.
