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Porphyries are examples of which type of rocks?

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Porphyries are examples of which type of rocks?

(a) Volcanic

(b) Plutonic

(c) Hypabyssal

(d) Sedimentary rocks

I got this question during an online exam.

The origin of the question is Igneous Rocks in portion The Study of Rocks of Engineering Geology

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Right choice is (c) Hypabyssal

To explain: Porphyries of various composition are examples of hypabyssal rocks.

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