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The viscosity is lowered as molten rock heats up. A good analogy is warm honey versus cold honey. As the honey cools down it's molecules slow down and an increase in viscosity occurs.

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Is basaltic magma or granitic magma hotter?

Baslatic magma is hotter.


What mainly determines the viscosity of a magma?

Viscosity is the measure of a liquids resistance to flow. In the case of magma, the hotter it is, the lower the viscosity.


Does cooler magama flow more or less quickly than hotter magma?

Cooler magma flows slower than hotter magma.


Does cooler magma flow more or less than hotter magma?

when magma is melted at a higher temp. it'll be more runny so cooler magma will be slower than hotter magma


What is the difference in silica content and viscosity between light-colored and dark-colored magma?

The lower the viscosity is the hotter the magma is and faster it flows.Higher the viscosity is the cooler it is and slower it flows down.


Does cooler magma flows more or less quickly than hotter magma?

when magma is melted at a higher temp. it'll be more runny so cooler magma will be slower than hotter magma


Is basaltic or andesitic magma hotter?

Basaltic magma is hotter than andesitic magma. Basaltic magma typically has temperatures ranging from 1000°C to 1200°C, while andesitic magma has temperatures around 800°C to 1000°C.


Why is magma hotter than lava?

Magma is hotter than lava because magma is located beneath the Earth's surface where it is exposed to higher temperatures and pressures compared to lava, which is magma that reaches the surface. As magma rises to the surface and cools, it loses some of its heat energy, resulting in the lower temperature of lava.


How does solid rock usually become magma?

As rock is pushed down toward the the Earth's center it gets hotter and hotter.


Is magma hotter than fire?

Yes, magma is hotter than fire. Magma is molten rock found beneath the Earth's surface, with temperatures reaching up to 1300-2400°F, while fire is a chemical reaction that emits heat and light, typically with temperatures up to around 1000-1800°F.


What is hotter magma or melting steel?

They are both in the 1500 degree F range.


What causes it to erupt?

Sometimes the plates on the earths crust crash into each other, forcing one to go lower. The friction causes the rock to get hotter and hotter until it melts. This is called magma. The magma keeps getting hotter, but it needs somewhere to go, so it surges up through the earths crust, making a hole. That is how a volcano is made. Once the hole is made, magma from the earths core comes to the surface, causing the volcano to spit lava