Rock Cycle

Front

What is the rock cycle?

Back

The rock cycle is an ongoing set of processes that can create or destroy any of the three main types of rock: igneous, sedimentary, and metamorphic.

Front

What processes are involved in the formation of igneous rock?

Back

Melting of rock and cooling of magma or lava.

Front

What processes are involved in the formation of sedimentary rock?

Back

Erosion, deposition, compaction, and cementation of pieces of solid material.

Front

What is sedimentary rock primarily formed from?

Back

Sedimentary rock forms from pieces or fragments of existing rock, solid organic material, or mineral crystals that are eroded, deposited, and cemented together.

Front

What is metamorphic rock?

Back

Metamorphic rock is formed by subjecting existing rock to heat and pressure.

Front

What is erosion?

Back

Erosion is the process by which rock and soil are worn away and transported by natural forces such as wind or water.

Front

What is deposition?

Back

Deposition is the process in which sediments, soil, and rocks are added to a landform or land mass.

Front

What is compaction in the context of sedimentary rock formation?

Back

Compaction is the process by which sediments are pressed together under their own weight, reducing their volume.

Front

What is cementation?

Back

Cementation is the process by which dissolved minerals crystallize and glue particles of sediment together.

Front

What are ripple marks?

Back

Ripple marks are small waves or ridges formed in sedimentary rocks, indicating the presence of water.