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Author Question: The two main categories of igneous rocks are ____________________ and ____________________. Fill in ... (Read 87 times)

crobinson2013

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on: Jul 13, 2018
The two main categories of igneous rocks are ___________________ _ and ___________________ _.
 Fill in the blank(s) with correct word

Question 2

The prevailing model for the formation of greenstone beds in the Archean is ____.
 A)igneous intrusion into a sandstone bed
 B)the closing of a back-arc basin
 C)a Wilson cycle
 D)mid-continental rifting
 E)ultramafic lava flows


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Silverbeard98

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Reply #1 on: Jul 13, 2018
Answer to Question 1

volcanic, plutonicplutonic, volcanicextrusive, intrusiveintrusive, extrusive

Answer to Question 2

B


crobinson2013

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Reply #2 on: Jul 13, 2018
TY


Silverbeard98

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Reply #3 on: Jul 13, 2018
Happy to Help


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