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After examining rock samples from a particular outcrop, a geologist concludes that the rocks formed at an ancient subduction zone. The presence of which metamorphic facies best supports this conclusion

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Answer:

Blueschist

Explanation:

Blueschists are formed in association with subduction and continental collision and reflect burial to high pressures at relatively low temperatures.

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Answer: Blueschist

Explanation:

A blueschist is a metamorphic rock that is formed under high pressure and low temperature. Texturally,it is medium-grained, non-foliated to medium-foliated.It is formed by the metamorphism of basalt and rocks if similar compositions.Its a rock that contains glauphaine.

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