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What replaces magma in the Earth?
The subduction and melting of oceanic crust replaces magma in the earth.
What type of magma produces pahoehoe?
Magma that is low in silica flows readily and produces dark-colored lava. Therefore magma that is low in silica produces Pahoehoe lava. This is called mafic or basaltic magma.
What boudaries produces volcanoes?
Convergent boundaries produce volcanoes. Volcanoes form when an oceanic plate and a continental plate converge, causing the oceanic plate to subduct. The subduction causes a magma chamber to form which feeds the volcano when it erupts.
What process is evident at oceanic trenches?
subduction, which is when one tectonic plate is pushed down beneath another tectonic plate.
How does magma become a igneous rock?
Igneous rock, if heated sufficiently by subduction processes will melt to form magma.
What replaces magma in the Earth?
The subduction and melting of oceanic crust replaces magma in the earth.
Where is andesitic magma found?
Andesite can be found around volcanoes with magma of intermediate composition, usually near subduction zones.
What type of magma produces pahoehoe?
Magma that is low in silica flows readily and produces dark-colored lava. Therefore magma that is low in silica produces Pahoehoe lava. This is called mafic or basaltic magma.
Why do volcanoes form above subduction zones?
magma forms in mantle above slab
What boudaries produces volcanoes?
Convergent boundaries produce volcanoes. Volcanoes form when an oceanic plate and a continental plate converge, causing the oceanic plate to subduct. The subduction causes a magma chamber to form which feeds the volcano when it erupts.
What process is evident at oceanic trenches?
subduction, which is when one tectonic plate is pushed down beneath another tectonic plate.
Magma that is low in silica and produces nonexplosive eruptions?
Low viscosity mafic magma.
What was obsidian before it was obsidian?
It was liquid rock (magma) which solidified after an extrusion or eruption. Crustal rocks can re-dissolve into magma during subduction of oceanic crust.
What is the difference between subduction and convection?
not related subduction is when some one sexually seduces you Doh!! Ok wow um your thinking about seduction. This person is asking subduction lol. ok so anyways, convection is when the upper mantle pushes magma through an opening in the crust, which becomes new land on ocean ridges. Subduction is when two plates clash and one slides under the other and turns to magma in the upper mantle.
How does magma become a igneous rock?
Igneous rock, if heated sufficiently by subduction processes will melt to form magma.
What happens to magma when it produces igneous rocks?
The transition form magma to rock is a process of cooling.
What is Magma that is high in silica and produces explosive eruption is called?
Rhyolitic magma. Boom! Basaltic magma is its exact opposite, while andesitic magma is in between the two.
