What 3 things affect the characteristics of magma?

What 3 things affect the characteristics of magma?

The factors that mainly affect in the formation of magma can be summarized into three: Temperature, Pressure and composition. Temperature plays a role in the formation of the melts in the magma. Generally magma has a temperature range from 700-1300 degrees Celsius.

What best describes a magma?

Magma (from Ancient Greek μάγμα (mágma) ‘thick unguent’) is the molten or semi-molten natural material from which all igneous rocks are formed. Magma is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natural satellites.

How do you describe magma form?

Magma is primarily a very hot liquid, which is called a ‘melt. ‘ It is formed from the melting of rocks in the earth’s lithosphere, which is the outermost shell of the earth made of the earth’s crust and upper part of the mantle, and the asthenosphere, which is the layer below the lithosphere.

What chemical and physical characteristics of magma are most important?

The chemical composition of the Magma determines whether the Magma will erupt explosively or mot. Explanation: There are a variety of gases that are present and very high pressure in the centre of the earth. Certain gases like oxides of nitrogen when present in high amount in the Magma makes it explosive.

Which characteristic of magma mainly determines its explosiveness?

Viscosity, together with the amount of gas dissolved in magma, can determine the explosivity of the eruption. More viscous magma with volatiles is more explosive than less viscous magma, where gases can bubble out relatively easily.

What is magma and how it is characterized and how does it behave?

Magma is extremely hot liquid and semi-liquid rock located under Earth’s surface. 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.

What is the distinction 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.

Which of the following characteristics of magma determine its explosiveness?

What physical characteristics of magma are most important in whether the magma erupts explosively or non explosively?

Effusive or Non explosive eruptions are favored by low gas content and low viscosity magmas (basaltic to andesitic magmas). If the viscosity is low, non-explosive eruptions usually begin with fire fountains due to release of dissolved gases.

Where does magma come from?

Besides molten rock, magma may also contain suspended crystals and gas bubbles. Magma is produced by melting of the mantle and/or the crust at various tectonic settings, including subduction zones, continental rift zones, mid-ocean ridges and hotspots . Nov 12 2019

Where is magma formed?

Magma is formed in the lower part of the crust but above the mantle. The difference in structural formation, pressure, and temperature in the crust and the mantle allows magma to form in several ways.

What is a volcano magma?

The molten or liquid rock inside a volcano is called magma. Magma is made mostly of rock and gases, but sometimes contains suspended crystals. Magma flowing out of a volcano during an eruption is called lava. Lava is very hot, sometimes more than 2,000 degrees Fahrenheit , and it glows red or white hot as it flows.

What is the name of magma?

There are many types of magma. One is called felsic magma. Felsic magma is thick (high viscosity) and has much of a mineral called silica. It mostly makes light-coloured rocks. Another type is called mafic magma, which is runny and has less silica.