Why would a plume of solid silicate rock rising slowly from deep in - ProProfs Discuss
Advertisement

Why would a plume of solid silicate rock rising slowly from deep in the mantle begin melting as it neared the base of the lithosphere?



Asked by Wapa, Last updated: Apr 13, 2024

+ Answer
Request
Question menu
Vote up Vote down

2 Answers

H. Jones

H. Jones

H. Jones
H. Jones, Web Content Writer, San Antonio,

Answered Feb 20, 2019

A plume of solid rock rising slowly from the deep in the mantle will begin to melt as it nears the base of the lithosphere because temperatures remain high as lowered pressures decrease melting temperatures.

For most substances, decreasing the pressure when a system is in equilibrium between liquid and solid phases will decrease the phase of transition temperature (temperature at which a substance changes from one crystal state to another).

This simply means the decrease in pressure causes a decrease in the temperature required to begin melting process.

upvote downvote
Reply 

John Smith

John Smith

John Smith
John Smith

Answered May 21, 2017

Temperatures remain high as lowered pressures decrease melting temperatures.
upvote downvote
Reply 

Advertisement
Advertisement
Search for Google images Google Image Icon
Select a recommended image
Upload from your computer Loader
Image Preview
Search for Google images Google Image Icon
Select a recommended image
Upload from your computer Loader
Image Preview
Search for Google images Google Image Icon
Select a recommended image
Upload from your computer Loader

Email Sent
We have sent an email to your address "" with instructions to reset your password.