Geology Quiz

What is the process called when different minerals melt into magma at different temperatures, changing its composition?

• Bowen's reaction series

• Partial melting

• Fractional crystallization

• Lithification

Which type of rock is formed from the cooling and crystallization of magma or rock?

• Sedimentary rocks

• Metamorphic rocks

• Igneous rocks

• Basaltic rocks

What is the name of the process in which minerals crystallize from cooling magma in a sequential, predictable pattern?

• Vesicular texture

• Bowen's reaction series

• Graded bedding

• Cross bedding

What type of texture is characterized by large, well-formed crystals surrounded by finer-grained crystals?

• Vesicular texture

• Porphyritic texture

• Pegmatitic texture

• Graded bedding

What is the term for small pieces of rock that are moved and deposited by water, wind, glaciers, and gravity?

• Sediments

• Vesicles

• Kimberlites

• Pegmatites

Which type of rock can contain diamonds and other minerals formed under very high pressures?

• Basaltic rocks

• Kimberlites

• Granitic rocks

• Vesicular rocks

What is the depositional feature of sedimentary rock that forms as inclined layers of sediment are carried forward across a horizontal surface?

• Graded bedding

• Cross bedding

• Vesicular texture

• Porphyritic texture

What is the most common type of sedimentary rock, formed from loose sediments on Earth's surface?

• Evaporites

• Clastic sedimentary rocks

• Foliated rocks

• Nonfoliated rocks

What are clastic rocks composed of?

• Organic material

• Rock and mineral fragments

• Crystals

• Lava

What does porosity refer to in minerals?

• Color of the mineral

• Hardness of the mineral

• Percentage of open spaces between grains

• Chemical composition