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An extrusion is an igneous rock layer formed when lava flows onto Earth's surface and hardens. Extrusions are always younger than the rocks below it.

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Q: How extrusion forms?
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What tells geologists how extrusion forms?

I am learning about this in my Science class, and when a geologist looks at an extrusion, they know it's an extrusion because it is Igneous rock, and an extrusion helps tell the reletive ages of the layers around it.


When was The Lepore Extrusion created?

The Lepore Extrusion was created on 2006-10-17.


When was The Mary-Sue Extrusion created?

The Mary-Sue Extrusion was created in 1999.


What has the author Kurt Laue written?

Kurt Laue has written: 'Strangpressen' -- subject(s): Extrusion, Metals 'Extrusion' -- subject(s): Extrusion, Metals


How do you spell extrusion?

That is the correct spelling of "extrusion" (forming by pressing through a die or opening).


Which is the important mechanical property of the material for extrusion purpose?

plasticity in the important mechanical property for the extrusion purpose.


What do an intrusion and an extrusion tell us about the rock layers?

(Intrusion) You can learn how old the rock layers are around it. the rock layers around under and all around the intrusion are always older than the intrusion itself. (EXTRUSION) the layers of rock bellow the extrusion is older than the extrusion.


Extrusion in a sentence?

Extrusion is a manufacturing process where material is pushed through a die to create a specific shape or profile.


What is the definition for the term 'thermoplastic extrusion'?

Wikipedia has an whole article on the topic thermoplastic extrusion. Thermoplastic extrusion is a high volume manufacturing process in which raw plastic material is melted and formed into a continuous profile.


What clues tell geologist how extrusions form?

I am learning about this in my Science class, and when a geologist looks at an extrusion, they know it's an extrusion because it is Igneous rock, and an extrusion helps tell the reletive ages of the layers around it.


What is an example of extrusion?

just dont do it


What is extrusion relating to rocks?

yea