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Thinner easy flowing lavas are rich in?
Thinner, easy-flowing lavas are rich in silica (SiO2) and have low viscosity. This type of lava is typically associated with shield volcanoes and effusive eruptions.
Is the composition of the hawaiian lavas felsic or mafic?
The composition of Hawaiian lavas is typically mafic, as they are rich in magnesium and iron and have a lower silica content. This composition gives them low viscosity and allows them to flow easily.
Is rhyolite silica rich or silica poor?
Rhyolite is silica-rich, containing over 70% silica. It is an extrusive igneous rock with a fine-grained texture that forms from the rapid cooling of magma rich in silica content.
What is Krakatoa a silica rich or a silica poor?
Krakatoa is silica-rich, meaning it contains a high amount of silicon dioxide (silica) in its composition. This high silica content is associated with explosive volcanic eruptions due to the interaction between silica and magma.
What magma is rich in feldspars and silica?
no its the least silica rich of granitic and andesitic magma.
Thinner easy flowing lavas are rich in?
Thinner, easy-flowing lavas are rich in silica (SiO2) and have low viscosity. This type of lava is typically associated with shield volcanoes and effusive eruptions.
Is the composition of the hawaiian lavas felsic or mafic?
The composition of Hawaiian lavas is typically mafic, as they are rich in magnesium and iron and have a lower silica content. This composition gives them low viscosity and allows them to flow easily.
Why is silica rich magma explosive?
This is because silica-rich magma is thicker. The thicker the magma, the chance for the dissolved gas in there to escape is less likely. This causes an explosion. When the gases do escape, they cause an even bigger explosion
What kind of lava does composite volcanoes produce AA or pahoehoe?
Usually neither. A'a and pahoehoe lavas are both of mafic composition (rich in iron and magnesium, poor in silica) and form basalt when they cool. Composite volcanoes usually erupt material of intermediate to felsic composition (felsic is rich in alkalis, aluminum, and silica), with lavas cooling into rocks such as andesite, dacite, and rhyolite.
Why are silica-rich magmas thicker than silica-poor magma?
The SiO4 tetrahedra continuously form bonds with adjacent ions and atoms, essentially causing the liquid to strik to itself.
Was krakatau's erupted by lava rich in silica or lava low in silica?
lava rich in silica
Is rhyolite silica rich or silica poor?
Rhyolite is silica-rich, containing over 70% silica. It is an extrusive igneous rock with a fine-grained texture that forms from the rapid cooling of magma rich in silica content.
What is Krakatoa a silica rich or a silica poor?
Krakatoa is silica-rich, meaning it contains a high amount of silicon dioxide (silica) in its composition. This high silica content is associated with explosive volcanic eruptions due to the interaction between silica and magma.
What are silica rich and thick magma is what?
Silica is sand dust.
What kind of silica do strato volcanos have?
silica-rich magma
Is scoria rich in silica?
Scoria typically contains high amounts of silica due to volcanic origins. It is formed from rapidly cooling lava with high viscosity, leading to the retention of silica in its composition.
What magma is rich in feldspars and silica?
no its the least silica rich of granitic and andesitic magma.
