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Author Question: What is the basic difference between the Archean and the Proterozoic? What will be an ideal ... (Read 59 times)

mynx

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on: Jul 15, 2018
What is the basic difference between the Archean and the Proterozoic? What will be an ideal response?

Question 2

What are the three main rock types that characterize Archean shield areas? What will be an ideal response?


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potomatos

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

The Archean was much hotter, so crustal evolution was different.

Answer to Question 2

Granite, gneiss, and greenstone belts.


mynx

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Reply 2 on: Jul 15, 2018
Excellent

FergA

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Reply 3 on: Yesterday
Gracias!

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