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What does magma mean?

Looking for the meaning or definition of the word magma? Here's what it means.

Noun
  1. (geology) The molten matter within the earth, the source of the material of lava flows, dikes of eruptive rocks, etc.
  2. (mathematics) A basic algebraic structure consisting of a set equipped with a single binary operation.
  3. Any soft doughy mass.
  4. The residuum after expressing the juice from fruits.
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The youngest core analysis is of identical age to the interpreted magmatic age and may have recrystallized in the magma.
This magma is rich in carbon dioxide gas, which produces explosive eruptions.
If magma were to accumulate at mid-crustal levels beneath the north Taupo region, this has significant implications for hazard monitoring.
As old oceanic crust was consumed in the trenches, new magma rose and erupted along the spreading ridges to form new crust.
In other words, the magma is squeezed upwards as thin sheets through long, narrow fractures.
Based on the position of the dikes, where was the source of the magma for the laccoliths located?

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