Why does lava melt in the Earth's heart without causing the Earth's crust to melt?

Have you ever wondered why the lava in the Earth’s interior melts without causing the Earth’s crust to melt? Let’s find out through this article!

In volcanic lava, there is some lava around the path of the molten lava flow below the ground that is drawn in during the flow of finding its way out in the crater. This type of lava is called “caught lava”.

Why does lava melt in the Earth's heart without causing the Earth's crust to melt?
The temperature of molten lava has a certain limit.

The temperature of molten lava has a certain limit, even the highest temperature in the lava bed above the ground is only 1200 degrees Celsius. The temperature of the underground molten lava reserve is only a little high. never mind.

Storing molten lava is like a mold filled with liquid iron.

If the liquid is poured into the sand casting mold (silicon sand contains quartz mainly), although it causes the surrounding sand to melt, it does not have the stored heat to cause the molten mold to collapse.

Why does lava melt in the Earth's heart without causing the Earth's crust to melt?
Stream of molten lava.

Molten lava also cannot collapse the thick wall of the Earth’s crust around the flowing volcano, at most it will only affect the surrounding lava, making the molten components in it mixed into. in molten lava flows, as “captured lava”.

Even the reservoir of molten lava is like boiling water flowing through a test tube, only rushing along the way of the volcano.

So molten lava will not cause the Earth’s crust to melt.