Answer:
4, 2, 3, 1
Explanation:
A shale is metamorphosed into four rock types: (1) a banded gneissic rock; (2) a schist with small mica crystals with a shiny aspect; (3) a very shiny schist with large mica crystals; and (4) a dull slate with cleavage. Which of the following lists these rocks in order of increasing metamorphic grade?
A dull slate with cleavage
A schist with small mica crystals with a shiny aspect
A very shiny schist with large mica crystals and
A banded gneissic rock.
