The 1980 eruption of Mount St. Helens produced dacite, which has an intermediate-felsic composition.
Mount St. Helens has produced rocks of mafic, felsic, and intermediate composition. The most recent activity has produced intermediate-felsic lava and pyroclastic material.
A shield volcano has mafic lava because the lava in the shield volcano has a low content of silica, resulting in low viscosity and a lot runnier lava than strato (composite) volcanoes.
As a shield volcano, Mauna Loa erupts mafic lava.
Volcanic ash can be mafic, felsic, or intermediate. However, it is more often felsic than mafic.
As a rule of thumb, massive crater-forming eruptions are usually associated with more felsic varieties of magma. Mount Mazama's magma is felsic.
Kilauea erupts mafic lava.
malic
As a shield volcano, Mauna Kea erupts mafic lava.
Mauna Loa exhibits non-explosive eruptions (like many in the Hawaiian islands) in the form of low viscosity (more fluid) lava due to poor silica content.
Felsic rocks have a lower melting point than mafic rocks and felsic magma has a lower temperature. In other words, felsic magma is not hot enough to melt mafic rock while mafic magma is hot enough to melt felsic rock.
felsic
Mauna Kea is taller, but only by 117ft (36m).
Mauna loa erupts mafic lava.
As a shield volcano, Mauna Kea erupts mafic lava.
Mauna Loa exhibits non-explosive eruptions (like many in the Hawaiian islands) in the form of low viscosity (more fluid) lava due to poor silica content.
Felsic rocks have a lower melting point than mafic rocks and felsic magma has a lower temperature. In other words, felsic magma is not hot enough to melt mafic rock while mafic magma is hot enough to melt felsic rock.
felsic
Neither. The terms mafic and felsic refer to the composition of igneous rocks, which are dominated by silicate minerals. Marble is a metamorphic rock composed of carbonate minerals. The terms mafic and felsic do no apply to it.
what is mauna loa's range
Mauna Loa is a volcano in Hawaii.
Rhyolite is not a mafic rock, but a felsic rock, high in silicates, and similar to granite in composition.
Olivine is a mafic mineral. It is most abundant in ultramafic rocks.
Is mineral amphibolite a felsic, mafic or intermidiate in term of color
Mauna Loa Mauna Loa