Mafic lava
== == 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.
no its the least silica rich of granitic and andesitic magma.
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.
That would be basaltic magma.
No, we call something mafic if it has a relative low silica content. As quartz is 100% silica, it's not mafic, but felsic.
A low silica magma is called a "mafic" magma.
Ultra mafic rocks have the least amount of silica.
Paricutin erupted mafic lava.
Composite volcanoes can erupt both mafic and felsic material, but intermediate material is the most common.
Yes, this is true. The rocks in question are 'Mafic' or 'Basic'. Mafic minerals are often dark in colour, and are indeed composed of Iron, with a good portion of Magnesium and other elements. They are Silica/Quartz deficient, and also note that the mineralogy makes Basaltic lava particularly runny, as opposed to Andesitic lava, with high Silica, which is very viscous.
Mafic lava is hotter than felsic lava and therefore flows faster.