Natural fluorinated organics in fluorite and rocks

被引：40

作者：

Harnisch, J

Frische, M

Borchers, R

Eisenhauer, A

Jordan, A

机构：

[1] Max Planck Inst Aeron, MPAE, D-37191 Katlenburg Duhm, Germany

[2] Univ Gottingen, Inst Geochem, D-3400 Gottingen, Germany

来源：

GEOPHYSICAL RESEARCH LETTERS | 2000年 / 27卷 / 13期

关键词：

D O I：

10.1029/2000GL008488

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

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.

引用

页码：1883 / 1886

页数：4

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