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Author Question: How are foliated metamorphic rocks classified? Describe some of the rock types found at different ... (Read 73 times)

stock

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on: Jul 15, 2018

How are foliated metamorphic rocks classified? Describe some of the rock types found at different
  grades of foliated metamorphic rocks. What will be an ideal response?



Question 2

How are metamorphic rocks classified? What are the two main classifications, and how are they
  different from each other? What will be an ideal response?



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stano32

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

Foliated metamorphic rocks can be arranged in order of increasing grain size, perfection of their
foliation, or both. Slate is fine-grained, followed by (in increasingly larger grain size) phyllite and
schist; gneiss displays segregated bands of minerals. Amphibolite is another fairly common foliated
metamorphic rock. Migmatities have both igneous and high-grade metamorphic characteristics



Answer to Question 2

Metamorphic rocks are primarily classified according to their texture. In a foliated texture, platy and
elongate minerals have a preferred orientation. A nonfoliated texture does not exhibit any discernable
preferred orientation of the mineral grains



stock

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Reply 2 on: Jul 15, 2018
Excellent

jomama

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Reply 3 on: Yesterday
Wow, this really help

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