THE ROCK CYCLE

Created by Kayla Rooney

New Terms

• Weathering: the various mechanical & chemical processes that cause exposed rock to decompose.

• Lithification: the process by which materials are converted into solid rock through compaction or cementation.

• Sediment: minerals or organic matter deposited by water, air or ice.

• Metamorphism: a change in the structure of a rock due to natural processes such as, pressure or heat.

• Crystallization: the act or process of crystallizing.

• Solidification: a change from a liquid or gaseous state to a solid form.

Sedimentary Rocks

• Formed from pre-existing rocks or pieces of once-living organisms.

• Formation occurs through the processes of deposition and lithification on Earth’s surface.

• Distinct layering and bedding

Examples of Sedimentary

Rocks

Igneous Rocks• Formed when hot, molten

rock crystallizes and solidifies.

• Found near active tectonic plate boundaries

• Two types: 1) Intrusive (Plutonic): Formed when magma is trapped deep inside the Earth.

2) Extrusive (Volcanic): Formed when magma exits and cools above the Earth’s surface.

Examples of Igneous Rocks

Metamorphic Rocks• Formed from other types

of rocks (sedimentary, igneous or other metamorphic rocks)

• Formed from the processes of high heat and high pressure deep within the Earth.

• The final result is a more dense and compact rock with a new mineral make up.

Examples of Metamorphic

Rocks

References

• https://geomaps.wr.usgs.gov/parks/rxmin/rock2.html

• https://www.usgs.gov/faqs/what-are-igneous-rocks?qt-news_science_products=0#qt-news_science_products

• https://www.usgs.gov/faqs/what-are-metamorphic-rocks-0?qt-news_science_products=0#qt-news_science_products

• https://www.dictionary.com/browse/weathering

Images

• http://www.studynotes.ie/wiki/formation-igneous-rocks-sample-answer/

• https://www.reference.com/science/can-metamorphic-rocks-found-3dd4f3f23f019b44

• http://easyscienceforkids.com/all-about-rock-cycle/

• http://www.iupui.edu/~g107/mod21/lecture05.htm

• http://usenaturalstone.org/wild-ride-rock-cycle/

• https://www.coolkidfacts.com/sedimentary-rocks/