Where did that Diamond come from?

Topics: Volcano / Pages: 9 (2163 words) / Published: Feb 5th, 2014
Geology Research Project Page 1

Where did that Diamond come from?

Geology Research Project
Rough Draft

December 4, 2013

Geology

Geology Research Project – Rough Draft Page 2

Where did that Diamond come from?

Diamonds are seen everywhere in stores and they are displayed in necklaces, earrings, pins and rings. They sparkle brilliantly in the right light. More than likely, most people don’t know how that diamond made it to the store. That diamond will be bought and worn by the lucky recipient. They don’t realize that sparkling diamond or “stone” has gone through extreme heat and pressure, as well as survived a violent ride to the earth’s surface. In the quest to learn more about where diamonds come from, researchers must first determine how the diamonds grow. After they conducted laboratory experiments, it was determined that diamonds grow in the Earth’s mantle. In fact, it is felt that diamonds grew and were later destroyed or melted as the result of the chemical conditions surrounding them. The researchers determined that lava was almost like the consistency of water and when cooled down the lava was almost the color of limestone. In this limestone colored lava, you can potentially find diamonds. There is only one active volcano that produces carbonatite lava. The location is called the Ol Doinyo Lengai in Northern Tanzania. The molten lava in Northern Tanzania consists of molten carbonates rather than molten silicates. (Volcano Discovery, 2012) This type of volcano is rare and “appear to be restricted to a few continental rift zones, such as the Rhine Valley and the East African rift system.” (How Volcanoes Work, n.d.) Ol Doinyo Lengai sits between two active volcanoes, Mt. Kilimanjaro and Mt. Kenya. This volcano has continued to erupt, with a “near-continuous effusion of natrocarbonatite lava from vents inside the crater” (Volcano Discovery, 2012) during the past 30-years.



References: Alchin, L. (1997). Hards As Rocks. Retrieved from www.hardasrocks.info/where-are-diamonds-found.html Council, W Diamonds: Chemistry & Structural Properties. (2012). Retrieved from All About Gemstones: http://ww.allaboutgemstones.com/diamond_chemistry_formation.html Forces of Nature to 2000 Stephanie. (2013, 11 19). Abazias Diamonds. Retrieved from www.abazias.com/diamondblog/diamond-news/scientific-and-medical-applications-of-diamonds Swiecki, R Volcano Discovery. (2012). Retrieved from Ol Doinyo Lengai volcano: http://www.volcanodiscovery.com/lengai.html Z

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