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Ultimately basalitc magma comes from the mantle. Here, the rocks are so hot that they would melt if they were at the surface, but are kept solid or semisolid due to the immense pressure they are under. Geologic forces can work to allow some of this to melt either by reducing the pressure or adding water, which alters the chemistry. This magma then rises because it is less dense than the surrouding rock.
What else can I help you with?
Granite and what are made when magma cools?
Granite and basalt are made when magma cools. Granite forms from slow-cooling magma underneath the Earth's surface, while basalt forms from rapidly-cooling magma on the surface.
Do basalt and rhyolite form magma?
No. Both basalt and rhyolite are formed from molten rock erupts from a volcano.
What is the meaning of a magma chamber?
A synonym for magma chamber is basalt cavity. Synonyms for magma is lava, ashes, scoria, slag, coulee, and obsidian.
What type of magma do high explosive volcanoes have?
Viscous, gaseous magma, usually of high acidity as compared to basalt.
The magma of shield volcanoes is rich in?
The magma of shield volcanoes is rich in basalt. Basalt magma is low in viscosity and gas content, allowing it to flow easily and lead to the broad, gently sloping shape characteristic of shield volcanoes.
Where does granite and basalt come from?
Both originate as molten magma but in the case of granite the magma is acidic and in the case of basalt the magma is basic.
Is basalt formed from slow or rapidly cooling magma?
Basalt is formed from relatively rapid cooling magma.
What is the origion of basalt?
it comes from magma inside the volcanoes then it cools and it turns in to basalt
Granite and what are made when magma cools?
Granite and basalt are made when magma cools. Granite forms from slow-cooling magma underneath the Earth's surface, while basalt forms from rapidly-cooling magma on the surface.
What magma does mount bird the volcano have?
Mount Bird is in Antarctica. It has basalt magma.
What was the basalt and igneous rock formed by?
Basalt and igneous rocks were formed by what we would call magma/lava
Do basalt and rhyolite form magma?
No. Both basalt and rhyolite are formed from molten rock erupts from a volcano.
What rocks forms when magma or lava cools or hardens?
Basalt
What is the meaning of a magma chamber?
A synonym for magma chamber is basalt cavity. Synonyms for magma is lava, ashes, scoria, slag, coulee, and obsidian.
What is the lava of surtsey?
the magma and lava in Surtsey are of alkali olivine basalt, which is the type of basalt found in Vestmannaeyjar (Westman Islands)
What type of magma do high explosive volcanoes have?
Viscous, gaseous magma, usually of high acidity as compared to basalt.
What is the first mineral to form when magma starts crystalizing at 1200C?
Basalt
