Rocks Review 2023

Front

What is the general color and density of felsic igneous rocks compared to mafic rocks?

Back

Felsic igneous rocks are generally lighter in color and have a lower density compared to mafic rocks.

Front

What type of rock forms from the cooling of molten rock at or below the Earth's surface?

Back

Igneous Rock.

Front

What processes lead to the formation of clastic sedimentary rocks?

Back

Clastic sedimentary rocks are formed by deposition, burial, compaction, and cementation.

Front

What is the term for igneous rock that forms from lava on Earth's surface?

Back

Extrusive Rock.

Front

What is the best characteristic to identify a clastic sedimentary rock?

Back

Grain size.

Front

What are the two main types of igneous rocks?

Back

Intrusive and extrusive rocks.

Front

How do intrusive igneous rocks form?

Back

Intrusive igneous rocks form from the cooling of magma beneath the Earth's surface.

Front

What is the primary difference between intrusive and extrusive igneous rocks?

Back

The primary difference is where they form: intrusive rocks form underground, while extrusive rocks form on the surface.

Front

What is the significance of grain size in sedimentary rocks?

Back

Grain size helps in identifying the type of sedimentary rock and indicates the energy of the environment in which the rock was formed.

Front

What is the process of cementation in sedimentary rock formation?

Back

Cementation is the process where dissolved minerals precipitate and bind sediment particles together.