Metamorphism can occur in whic rocks? a. brittle rocks b. igneous rocks c. Sedim
ID: 804457 • Letter: M
Question
Metamorphism can occur in whic rocks?
a. brittle rocks
b. igneous rocks
c. Sedimentary rocks
d both igneous and sedimentary rocks
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True or False: Felsic, Intermediate, mafic, and ultramafic rocks all have similar silica content.
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Which setting has rocks with the highest grade of metamorphism?
a. Contact metamorphism
b. Regional metamorphism
c. Dynamic metamorphism
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True or False: Metamorphism can occur when a preexisting rock is fully melted and re-cools
Explanation / Answer
1. D) both igneous and sedimentary rocks
Metamorphic rocks basically form from heat and pressure changing the original rock into a completely different new rock. The parent rock or the original rock can be either sedimentary, igneous .The word metamorphic comes from Greek it generally means To Change Form
2.False - Felsic, Intermediate, mafic, and ultramafic rocks all have different silica content.
3.C) Regional metamorphism - setting has rocks with the highest grade of metamorphism
it has been found that large amounts of granitic intrusions hav been associated with regional metamorphic rocks. some of the examples of most common regional metamorphic rocks are slates, schists and gneisses
4. True - Metamorphism can occur when a preexisting rock is fully melted and re-cools