Metamorphic Rocks

Front

Which rock has never melted, but was produced by great heat and pressure, which distorted and rearranged its minerals? Options: siltstone, breccia, pegmatite, metaconglomerate

Back

metaconglomerate

Front

Which two rocks usually consist of only one mineral, but may contain additional minerals?

Back

quartzite and dunite

Front

The photograph shows the texture of a rock composed of various minerals as seen through a microscope. Which rock is most likely shown above? Options: sandstone, anthracite coal, dunite, schist

Back

schist

Front

The data table lists characteristics of rocks A, B, C, and D. Which rock is most likely phyllite? Options: A, B, C, D

Back

D

Front

The cross section represents a portion of Earth's crust. Letters A through D are locations within the rock units. At which location is quartzite most likely found?

Back

C

Front

Which rock is only formed by regional metamorphism?

Back

slate

Front

Wavy bands of light and dark minerals visible in gneiss bedrock probably formed from:

Back

heat and pressure during metamorphism

Front

What geologic process causes the conversion of shale to gneiss?

Back

metamorphism

Front

The rock shown has a foliated texture and contains the minerals amphibole, quartz, and feldspar arranged in coarse-grained bands. Which rock is shown?

Back

gneiss

Front

Which physical characteristic best describes the rock phyllite?

Back

foliated texture with microscopic mica crystals