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Journal Article

Natural fluorinated organics in fluorite and rocks

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons62423

Jordan,  Armin
Service Facility Gas Analytical Laboratory, Dr. A. Jordan, Max Planck Institute for Biogeochemistry, Max Planck Society;

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Citation

Harnisch, J., Frische, M., Borchers, R., Eisenhauer, A., & Jordan, A. (2000). Natural fluorinated organics in fluorite and rocks. Geophysical Research Letters, 27(13), 1883-1886. doi:10.1029/2000GL008488.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000E-CC78-B
Abstract
Results of measurements of fluorinated compounds in gasses extracted from igneous and metamorphic rocks are reported. A new extraction method analogous to a pepper mill for geological samples is described. It permits extraction at low temperatures and ensures a rapid transfer of extracted gases from active surfaces to cryogenic pre-concentration loop. Values for CF4, CF3Cl, CF2Cl2, CFCl3, CHF3, SF6 and NF3 in fluorites, granites, basalts and other igneous and metamorphic rocks are reported. It is proposed that trifluoroacetic acid (TFA) that was recently discovered in various environmental archives could also origin from similar geogenic sources.