What are the three major types of magma?

It also contains small amounts of dissolved gases such as water vapor, carbon dioxide, and sulfur. The high temperatures and pressure under Earth’s crust keep magma in its fluid state. There are three basic types of magma: basaltic, andesitic, and rhyolitic, each of which has a different mineral composition.

Is molten rock inside a volcano?

Molten rock below the surface of the Earth that rises in volcanic vents is known as magma, but after it erupts from a volcano it is called lava.

What do you call an inactive volcano?

Dormant volcanoes have not erupted for a very long time but may erupt at a future time. Extinct volcanoes are not expected to erupt in the future. Inside an active volcano is a chamber in which molten rock, called magma, collects.

Which of the following best describes the relationship between Earth’s crust and tectonic plates?

Which of the following best describes the relationship between Earth’s crust and tectonic plates? Earth’s crust is one large tectonic plate.

What is the four types of magma?

Because many of the properties of a magma (such as its viscosity and temperature) are observed to correlate with silica content, silicate magmas are divided into four chemical types based on silica content: felsic, intermediate, mafic, and ultramafic.

What is called magma?

Scientists use the term magma for molten rock that is underground and lava for molten rock that breaks through the Earth’s surface.

Is water a lava?

When the surface of a lake freezes, the water changes from a liquid to a solid. Rocks that solidify from melted material are igneous rocks, so lake ice can be classified as igneous. If you get technical, it also means that water could be classified as lava.

Can an extinct volcano come back to life?

It is now obvious that volcanoes are erupting at a faster pace, not only around the ring of fire but around the entire globe. Even dormant volcanoes are becoming active and not only that, but also extinct volcanoes are coming back to life.

What is the name of the border between two tectonic plates?

Answer and Explanation: The border between two tectonic plates is called a boundary.