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Author Question: The texture of an igneous rock consisting of coarse-grained crystals surrounded by very small ... (Read 70 times)

Chelseaamend

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on: Jul 16, 2018
The texture of an igneous rock consisting of coarse-grained crystals surrounded by very small crystals is called
 
  A) aphanitic.
  B) phaneritic.
  C) porphyritic.
  D) glassy.

Question 2

A sample contains 60  Plagioclase Feldspar and a medium amount of silica. What would you call it?
 
  A) an intermediate igneous rock
  B) a mafic igneous rock
  C) an ultramafic igneous rock
  D) a felsic igneous rock


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Tabitha_2016

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: A


Chelseaamend

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Reply 2 on: Jul 16, 2018
Gracias!

T4T

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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