Question
Dynamic Earth: (6/9)
Use map to answer all parts of the question. Thank you in advance.


6) a) On the east side of the map, metamorphic units F, G, and H are adjacent. Which unit has the highest metamorphic grade?
Bonus D 0 Bonus C Bonus B Bonus A
Bonus D + + X + + Bonus + + + Bonus X Separating unit of I and H + + X - X isa dip Sipo X -- fault to foot wall because hangi
0 0
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Answer #1

a) Rocks F, G and H have the highest grade of metamorphism whereas rock I is is having the lowest grade of metamorphism. Because we can see the regional type or tectonic activity force over there at F, G and H to undergo the highest grade of metamorphism whereas at I no much deformation mechanism is there. That's why I have the lowest grade of metamorphism.

b) Rock F, G and H are simply the metamorphic equivalents of rock unit C. Means by metamorphism of unit C Rock F, G and H were formed.

c) Rock C formed first, then undergone metamorphism to produce Rock F, G and H.

d) They have undergone regional metamorphism not contact metamorphism as we can see here the cause of metamorphism is tectonic force not any igneous intrusive activity.

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