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Author Question: What features would you look for to see if a metamorphic rock had undergone lithostatic or ... (Read 32 times)

clmills979

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on: Jul 15, 2018

What features would you look for to see if a metamorphic rock had undergone lithostatic or
  differential pressure? What will be an ideal response?



Question 2

Why is time important to metamorphic processes? What will be an ideal response?


ntsoane kedibone

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Reply #1 on: Jul 15, 2018
Answer to Question 1

With lithostatic pressure, the stresses are the same in all directions, so a rock will be squeezed into a
smaller space. In differential pressure, the stresses are stronger in some directions, so parts of the rock
may rotate or parts may slide past other parts (shearing).



Answer to Question 2

Chemical reactions proceed at different rates and require different amounts of time to complete. The
amount of time that a rock has available during metamorphism may affect what type of rock it
becomes.



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clmills979

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Reply #2 on: Jul 15, 2018
Thank you


ntsoane kedibone

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Reply #3 on: Jul 15, 2018
No problemo


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