Metamorphic Rocks

How are metamorphic rocks formed?

• By the cooling of magma and/or lava

• Adding heat and/or pressure to existing rocks

• By compaction and cementation

• By weathering

Regional metamorphism covers large or small areas of the Earth?

• Large

• Small

Contact metamorphism covers large or small areas of the earth?

• Large

• Small

Name a foliated metamorphic rock showing low grade metamorphism of shale

• Gneiss

• Slate

• Marble

• Hornfels

• Limestone

What is Gneiss' texture?

• Mineral alignment

• Nonfoliated

• Bioclastic

• Banding

• Glassy

What metamorphic rock shows no foliation and has the composition of carbon?

• Anthracite coal

• Marble

• Slate

• Gneiss

• Pumice

Name the 6 minerals that make up most foliated metamorphic rocks?

• Mica, Quartz, Feldspar, Garnet, Pyroxene and Olivine

• Mica, Quartz, Feldspar, Garnet, Pyroxene and Amphibole

• Halite, Gypsum, Mica, Quartz, Feldspar and Amphibole

• Gypsum, Mica, Quartz, Feldspar, Calcite and Amphibole

Describe how a sedimentary rock can become a metamorphic rock.

• add compaction and cementation

• quickly cooled magma or lava

• add heat and/or pressure to the rock

• melt the rock

Name the fine grained, non foliated metamorphic rock formed from CONTACT metamorphism

• Slate

• Schist

• Hornfels

• Marble

• Quartzite

Identify this metamorphic rock

• Schist

• Shale

• Gneiss

• Quartzite

• Slate