Submit a question to our community and get an answer from real people.
Submit

An intrusion crosses an extrusion. Which layer is older? Explain.

Life Science

Report as

An extrusion is older than the instruction. Extrusion occurs when the lava cools down on Earth while intrusion occurs when magma cools inside the Earth. Extrusion may be continuous or semi continuous. Read more on http://en.wikipedia.org/wiki/Extrusion and http://en.wikipedia.org/wiki/Intrusion.

Helpful Fun Thanks for voting Comments (0)
Report as
Add a comment...
Do you have an answer?
Answer this question...
Did you mean?
Login or Join the Community to answer
Popular Searches