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Where does the lava come from in a volcano?

Lava (which as you undoubtedly know, is partially molten rock erupted by volcanoes) typically comes from the mantle—the Earth’s middle layer, sandwiched between the crust and the core. Once it reaches the surface, lava quickly cools down and solidifies completely, creating new land.

Why is lava formed?

Lava forms when magma erupts from a volcano. As pressure is released gases, dissolved in the magma, bubble out so the composition of lava changes. Most lava flows are formed by the eruption of hot (around 1200oC) basalt magma, (see video clip above).

Why do volcanoes emit lava?

Public domain.) Magma contains dissolved gases, which provide the driving force that causes most volcanic eruptions. As magma rises towards the surface and pressure decreases, gases are released from the liquid portion of the magma (melt) and continue to travel upward and are eventually released into the atmosphere.

Is lava inside a volcano?

When geologists refer to magma, they’re talking about molten rock that’s still trapped underground. If this molten rock makes it to the surface and keeps flowing like a liquid, it’s called lava. Hawaii’s Kilauea volcano erupted on May 3, 2018, and the lava continues to flow.

Can lava melt a car?

As the lava contacts the car, portions of the car burst into flames and in less than a few minutes, the lava has completely encased the car…or completely melted it. Even if it doesn’t completely melt, it will be encased in volcanic rock when things are all said and done.

Can lava destroy metal?

Liquid lava temperature is not very high, and won’t melt a chunk of steel for example. Consider this – your normal large firewood burns at 600-800 degrees, which is just a little bit less than liquid lava temperature. You can melt lead, aluminium and maybe copper in this (with due insulation), but that’s about it.

Which volcano can destroy the world?

Yellowstone supervolcano