A metapelite is a metamorphosed mudstone (a pelite), rich in aluminium and potassium, whose assemblages hold micas, chlorite, garnet, staurolite and the aluminosilicates. A metabasite is a metamorphosed basalt, gabbro or other mafic rock, rich in calcium, magnesium and iron, whose assemblages define the facies.
Earth and Space Sciences · Glossary
What is Metapelite; metabasite?
Also known as: metapelite · metabasite