GEO1115_2021_Activity10.2F
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University of Ottawa *
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1115
Subject
Geology
Date
Dec 6, 2023
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docx
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3
Uploaded by jaytwimb
THEME 10 – METAMORPHIC ROCKS [ 11/11 : A+ ]
A
CTIVITY
10.2F – V
ISUAL
IDENTIFICATION
AND
ASSOCIATED
QUESTIONS
( /11)
Reference material:
-
Lecture of associated theme (Brightspace)
-
Glossary (
https://mysite.science.uottawa.ca/dumas/
)
-
Reference document “Section of the lab manual” in Brightspace
Activity:
Answer the questions associated to each of the following pictures. N.B. The rocks shown in the pictures below can be any of the rocks highlighted in yellow in the reference material “Section of the lab manual” (see Table 1).
Metamorphic rock 1 ( /6)
a)
Name the metamorphic texture that is specific to this rock (the texture that defines this rock), and indicate whether it reflects a low or a high metamorphic grade.
( /2)
Schistosity
b)
Name this rock.
( /1)
Schist
c)
Name the type of metamorphism this rock has most likely undergone, and briefly justify your answer.
( /2)
Dynamothermal because it is foliated.
d)
Name a potential protolith of this rock.
( /1)
Shale
Metamorphic rock 2 ( /5)
a)
Indicate whether this rock is foliated or not.
( /1)
No
b)
Name the type of metamorphism this rock has most likely undergone, and briefly justify your answer by linking it to the answer given in “a)”.
( /2)
Contact metamorphism as dynamothermal would have resulted in foliation and those are the only 2 which can create quartzite.
c)
Knowing that this rock does not react with HCl, give the name of the dominant mineral forming this rock.
( /1)
Quartz d)
Name this rock.
( /1)
Quartzite
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