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1.22 Metamorphic Rocks

Last updated over 5 years ago

9 questions

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Question 1

1.

Determine the name of a metamorphic rock that is foliated, HAD some mica which has changed into feldspar, and has medium to coarse grain size

Question 2

2.

There is one metamorphic rock with variable composition, it is nonfoliated and forms from contact metamorphism

Question 3

3.

Another metamorphic rock with composition similar to a mineral AND a bioclastic sedimentary rock, also bubbles with acid, and is non foliated

Question 4

4.

This metamorphic rock is made of silicon and oxygen and is non foliated with fine to coarse grain size

Question 5

5.

A foliated rock showing mineral alignment and formed from regional metamorphism. It can contain mica, feldspar, quartz, garnet and amphibole

Question 6

6.

Base your answer on the accompanying graph above, which shows the crustal temperature and pressure conditions under which three different minerals with the same chemical composition (Al2SiO5) crystallize. Under which crustal temperature and pressure conditions will andalusite form?

300oC & 6000 atm

500oC & 2000 atm

600oC & 4000 atm

700oC & 8000 atm

Question 7

7.

Describe the difference between regional metamorphism and contact metamorphism.

Question 8

8.

Using the diagram above, and your knowledge of Earth Science, describe why metamorphic rocks may have characteristic bands.

Question 9

9.

Which type of metamorphic rock is most likely to form at A?