Mount Merapi was formed by two converging plates. Subduction causes slabs of oceanic crust to sink through a deep-ocean trench into the mantle. The crust melts and forms magma, which then rises back toward the surface. It is located along the Sunda, or Java trench. When the magma from the melted crust erupts as lava, volcanoes are formed. Mount Merapi is located along an island arc.
Composite volcanoes can contain a wide variaty of magmas ranging from basaltic to rhyolitic.
destructive plate boundary
The most explosive type of volcano, which is the type that has water, is called a boiler volcano. All active volcanoes have magma, and emit carbon dioxide. Magma can contain silica.
The type of magma which is thick and slow is Felsic Magma.
Stratovolcano
Of coarse, magma is a melted mixture of rocks.
Mount Merapi was formed by two converging plates. Subduction causes slabs of oceanic crust to sink through a deep-ocean trench into the mantle. The crust melts and forms magma, which then rises back toward the surface. It is located along the Sunda, or Java trench. When the magma from the melted crust erupts as lava, volcanoes are formed. Mount Merapi is located along an island arc.
Explosive and oozy.
It is an active volcanic mountain
destructive plate boundary
The three types of magma, named for the rock they form are basaltic, rhyolitic and andesitic. Rhyolitic magma is rich in silica and water vapor.
That depends on the type of magma (there are more than one type), they are formed by partial/eutectic melting of either continental crustal rocks or mantle material and will therefore contain different minerals.
Composite volcanoes can contain a wide variaty of magmas ranging from basaltic to rhyolitic.
It is above a subduction zone
destructive plate boundary
The most explosive type of volcano, which is the type that has water, is called a boiler volcano. All active volcanoes have magma, and emit carbon dioxide. Magma can contain silica.