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Author Question: Two economically important metamorphic minerals are graphite and corundum, which can be used, ... (Read 121 times)

EY67

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Two economically important metamorphic minerals are graphite and corundum, which can be used, respectively, for ____.
 A)abrasives and furnace linings
 B)furnace linings and abrasives
 C)furnace linings and dry lubricants
 D)dry lubricants and abrasives
 E)dry lubricants and talcum powder

Question 2

Explain why increased seafloor spreading, resulting in higher heat flow and an increase and rapid expansion in oceanic ridges during the Cretaceous, result in worldwide transgression onto the continents.



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mmpiza

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Answer to Question 1

D

Answer to Question 2

Increased seafloor spreading and higher heat flow would result in a higher amount of new oceanic crust coming from spreading ridges. New, hot oceanic crust is less dense than cooled oceanic crust. This less-dense crust would displace more ocean water onto the continents.




EY67

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Reply 2 on: Jul 13, 2018
YES! Correct, THANKS for helping me on my review


raenoj

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Reply 3 on: Yesterday
Gracias!

 

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