Optical spectrophotomerty
Gneiss is usually considered a high grade metamorphic rock (although there are some weird exceptions).
Slate. Slate is a low grade metamorphic rock derived from shale or mudstone.
Yes. Most likely it would become a metamorphic rock of higher grade. Slate is a low grade metamorphic rock. With increased heat and pressure it will become schist, a high grade metamorphic rock.
Slate.
Both gneiss and migmatite are late-stage, high grade metamorphic rocks.
Gneiss is usually considered a high grade metamorphic rock (although there are some weird exceptions).
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Metamorphic rock can undergo a series of changes called degrees of metamorphism, from low-grade to high-grade.
Slate. Slate is a low grade metamorphic rock derived from shale or mudstone.
No
Yes. Most likely it would become a metamorphic rock of higher grade. Slate is a low grade metamorphic rock. With increased heat and pressure it will become schist, a high grade metamorphic rock.
It's eclogite facies.
what is the chemical composition ec grade copper which is 99.97 pure
high grade metamorphism can progress to pressure and weather.
Greenschist, blueschist, zeolite, granulite and eclogite high grade metamorphic rocks.
Slate.
Four rocks formed by metamorphic grade are slate, phyllite, schist and gneiss. Slate and pnyllite are low grade; schist is a medium grade; and gneiss is a high grade rock.