Intensity of regional metamorphism may be recognized by the index ____.
A)crystals
B)fossils
C)minerals
D)ores
E)rocks

Question

Quizplus · Accepted Answer

The intensity of regional metamorphism can be recognized by the index minerals which form under specific temperature and pressure conditions. These minerals are used to estimate the degree of metamorphism, with higher grade metamorphism indicating more intense pressure and temperature conditions.

Intensity of Regional Metamorphism May Be Recognized by the Index