Fluorine cycle

Fluorine cycle: F fluxes[1] are in Tg/yr and reservoir data[2] is in mg/kg. The major mechanisms that mobilize fluorine are chemical and mechanical weathering of rocks. Major anthropogenic sources also include industrial chemicals and fertilizers, brick manufacturing, and groundwater extraction. Fluorine is primarily carried by rivers to the oceans, where it can have a residence time of about 500,000 years. Fluorine can be removed from the ocean by deposition of terrigenous or authigenic sediments, or subduction of the oceanic lithosphere.

The fluorine cycle is the series of biogeochemical processes through which fluorine moves through the lithosphere, hydrosphere, atmosphere, and biosphere. Fluorine originates from the Earth’s crust, and its cycling between various sources and sinks is modulated by a variety of natural and anthropogenic processes.

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  2. ^ Rudnick, R.L.; Gao, S. (2003), "Composition of the Continental Crust", Treatise on Geochemistry, 3, Elsevier: 659, Bibcode:2003TrGeo...3....1R, doi:10.1016/b0-08-043751-6/03016-4, ISBN 978-0-08-043751-4