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Magnesium Cycle

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Cynthia B

on 1 January 2013

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Transcript of Magnesium Cycle

By: Cynthia B The Magnesium Cycle Magnesium ions are attracted to the negative charges present on the surfaces of most soil particles. Can be deposited from the air in small amounts as dust.
(Not present as gaseous state.) Derived primarily from rocks and decomposed vegetation. Plays an important role in regulating cellular processes and in transmitting signals between cells.

A macronutrient.

"It is actively involved in photosynthesis as a component of chlorophyll and also plays an important role in plant respiration and energy metabolism." Magnesium: Can be dissolved in water as a positively charged ion: Mg^2+ Magnesium found in the environment: Occurs in high concentrations in limestone and marble. Because of their strong attraction to soil particles, these ions are found in many soils overlying these rock types. The Magnesium Cycle: As rock and clay particles weather over time, Mg particles are slowly released into the soil. As plants decompose, Mg particles are released back into the environment. Cites Used:
http://nmsp.cals.cornell.edu/publications/factsheets/factsheet59.pdf A long and slow cycle process, similar to the Calcium and Sulfur cycles in that there are no atmospheric components.

Revolves around the weathering of rocks. The mass of Earth's Lithosphere is around 1.365 x 10^23 kg, or 136,500,000,000,000,000,000,000 kg. Of this, around 2.09% is magnesium, and therefore 2.85285 x 10^21 kg is magnesium, or 2,852,850,000,000,000,000,000 kg. http://wiki.answers.com/Q/How_much_magnesium_is_there_on_the_earth
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