Natural fluorinated organics in fluorite and rocks

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

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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.

Document Type: Article
Keywords: Natural fluorinated organics, fluorite, rocks
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-MG Marine Geosystems
Refereed: Yes
DOI etc.: 10.1029/2000GL008488
ISSN: 0094-8276
Date Deposited: 18 Feb 2008 17:24
Last Modified: 14 Feb 2018 08:11

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