What type of metamorphic grade is responsible for the conversion of granite into granitic gneiss?

2 answers:

6 0

Answer: High Grade

Explanation:
Gneiss forms as a result of high-grade, regional metamorphic conditions. High grade refers to metamorphism occurring at over 320 degrees Celsius and relatively high pressure. As the grade increases, the hydrous minerals lose H20, and non-hydrous minerals become more common. The regional metamorphism results in the heavy foliation in gneiss.

Kisachek [45]2 years ago

3 0

High grade

Explanation:

Granite is converted into granitic gnesis in high grade of metamorphic phase
The high grade refers to the temperature above 50°C or 323K around.
Because increasing temperature decreases water crystals in granite

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