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As lava cools, it hardens and forms a thick layer of rock. These rocks are known as igneous rocks. An example of an igneous rock is pumice, which is used in spa treatments to soften feet.

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What is the hardened layer of lava called?

The hardened layer of lava is called "igneous rock".


What is a hardened layer of magma called?

A hardened layer of magma is called a lava flow or volcanic rock.


Does hardened lava form a vent?

No, it forms a volcano.


A volcano formed over time from thousands of lava eruptions that deposit layer after layer of new crust?

Yes, volcanoes are formed by the accumulation of lava and volcanic materials over time from repeated eruptions. As the lava cools and solidifies, it builds up to create the structure of the volcano. This continuous process can lead to the formation of a cone-shaped volcano with layers of hardened lava.


Layers of lava emitted by the volcano?

The different layers of a volcano are made from the lava and ash produced by the volcano. Some volcanoes have different thicknesses of layers or only one type of layer depending on the kind of eruption and how much ash it produces.


What is the outer layer of a volcano called?

There is no specific term for the outer layer of a volcano.


What is the rock material called that has filled in the vent of a volcano and hardened?

Basalt


What landforms forms from hardened magma in the pipe of an extinct volcano?

nothing


What volcano made the Laetoli footprints possible?

The volcano that made the Laetoli footprints possible is the nearby Sadiman volcano, which erupted about 3.6 million years ago and covered the site with a layer of ash. This ash then hardened, preserving the footprints made by early hominins as they walked across the area.


Hardened magma squeezed into vertical spaces are what type of volcano?

igneous dike


What created the hawaiian island?

There was a small volcano and when it erupted, it hardened and created islands.


Is a wide gently sloping mountain made of hardened layers of low silica lava a cinder cone volcano?

Shield volcano