What is the meaning of molten lava?

Molten describes an object that's reduced to liquid form by heating. You're probably familiar with lava, the molten rock that explodes out of a volcano. Something much safer than lava has made the term molten popular - molten chocolate cake.

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Accordingly, what is the meaning of molten magma?

And another question, what are four types of lava? Because of the role of silica in determining viscosity and because many other properties of a lava (such as its temperature) are observed to correlate with silica content, silicate lavas are divided into four chemical types based on silica content: felsic, intermediate, mafic, and ultramafic.

What is the difference between magma and lava?

Scientists use the term magma for molten rock that is underground and lava for molten rock that breaks through the Earth's surface. People also ask why do volcanoes have lava? Deep within the Earth it is so hot that some rocks slowly melt and become a thick flowing substance called magma. Since it is lighter than the solid rock around it, magma rises and collects in magma chambers. Magma that has erupted is called lava. Some volcanic eruptions are explosive and others are not.

And another question, how deep is lava in a volcano?

Computer models show why eruptive magma chambers tend to reside between six and 10 kilometers underground. A new study reveals why the magma chambers that feed recurrent and often explosive volcanic eruptions tend to reside in a very narrow depth range within the Earth's crust.