it is normally intermediate flow because of the silica content.
high silica eruptions are generally explosive, giving rise to large abbounts of dust and may even result in pyroclastic flows. This happens because high silica melts are more viscous (thick) than low silica melts. If you see a nice river or fountain of lava, you can bet that it is relatively low in silica, probably a basalt.
No, magma with a silica content of 50 percent is more felsic, while magma with a silica content of 70 percent is more mafic. Silica content is inversely proportional to magma's mafic or felsic classification.
A magma's viscosity is directly related to its temperature and silica content. Higher temperatures and lower silica content result in lower viscosity, making the magma more fluid and able to flow more easily.
No, intermediate magma typically contains a moderate amount of silica compared to other magma types. Basaltic magma has the lowest silica content, while rhyolitic magma has the highest silica content.
Silica-rich magma has high viscosity, which can trap gas bubbles. When pressure builds up, the gas can cause explosive eruptions as it tries to escape through the thick magma. The high silica content also promotes the formation of explosive pyroclastic materials during an eruption.
it is normally intermediate flow because of the silica content.
high silica eruptions are generally explosive, giving rise to large abbounts of dust and may even result in pyroclastic flows. This happens because high silica melts are more viscous (thick) than low silica melts. If you see a nice river or fountain of lava, you can bet that it is relatively low in silica, probably a basalt.
A magma's viscosity is directly related to its temperature and silica content. Higher temperature and lower silica content typically result in lower viscosity, making the magma more fluid and runny. Conversely, lower temperature and higher silica content lead to higher viscosity, resulting in a thicker, more sticky magma.
low silica content (basaltic magma)
low silica content (basaltic magma)
No, magma with a silica content of 50 percent is more felsic, while magma with a silica content of 70 percent is more mafic. Silica content is inversely proportional to magma's mafic or felsic classification.
A magma's viscosity is directly related to its temperature and silica content. Higher temperatures and lower silica content result in lower viscosity, making the magma more fluid and able to flow more easily.
No, intermediate magma typically contains a moderate amount of silica compared to other magma types. Basaltic magma has the lowest silica content, while rhyolitic magma has the highest silica content.
The mineral that affects magma thickness is silica. Magma with high silica content tends to be more viscous, resulting in thicker magma. Conversely, magma with low silica content is less viscous and flows more easily.
Eyjafjallajökull volcano in Iceland produces andesitic magma, which is a type of intermediate magma that has a silica content between basaltic and rhyolitic magmas. This type of magma can lead to explosive eruptions due to its high viscosity, gas content, and tendency to form pyroclastic flows.
it is normally intermediate flow because of the silica content.
Silica-rich magma has high viscosity, which can trap gas bubbles. When pressure builds up, the gas can cause explosive eruptions as it tries to escape through the thick magma. The high silica content also promotes the formation of explosive pyroclastic materials during an eruption.