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Testing for fullerenes in geologic materials; Oklo carbonaceous substances, Karelian shungites, Sudbury Black Tuff

David Mossman, Guenter Eigendorf, Dennis Tokaryk, Francois Gauthier-Lafaye, Kristal D. Guckert, Victor Melezhik and Catharine E. G. Farrow
Testing for fullerenes in geologic materials; Oklo carbonaceous substances, Karelian shungites, Sudbury Black Tuff
Geology (Boulder) (March 2003) 31 (3): 255-258

Abstract

Fullerenes have been reported from diverse geologic environments since their discovery in shungite from Karelian Russia. Our investigation is prompted by the presence of onionskin-like structures in some carbonaceous substances associated with the fossil nuclear fission reactors of Oklo, Gabon. The same series of extractions and the same instrumental techniques, laser desorption ionization and high-resolution mass spectroscopy (electron-impact mass spectroscopy), were employed to test for fullerenes in samples from three different localities: two sites containing putative fullerenes (Sudbury Basin and Russian Karelia) and one new location (Oklo, Gabon). We confirm the presence of fullerenes (C (sub 60) and C (sub 70) ) in the Black Tuff of the Onaping Formation impact breccia in the Sudbury Basin, but we find no evidence of fullerenes in shungite samples from various locations in Russian Karelia. Analysis of carbonaceous substances associated with the natural nuclear fission reactors of Oklo yields no definitive signals for fullerenes. If fullerenes were produced during sustained nuclear fission at Oklo, then they are present below the detection limit ( approximately 100 fmol), or they have destabilized since formation. Contrary to some expectations, geologic occurrences of fullerenes are not commonplace.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 31
Serial Issue: 3
Title: Testing for fullerenes in geologic materials; Oklo carbonaceous substances, Karelian shungites, Sudbury Black Tuff
Affiliation: Mount Allison University, Department of Geography, Sackville, NB, Canada
Pages: 255-258
Published: 200303
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 38
Accession Number: 2003-025982
Categories: General geochemistryIgneous and metamorphic petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
N60°40'00" - N66°40'00", E29°19'60" - E37°55'00"
Secondary Affiliation: University of British Columbia, CAN, CanadaUniversity of New Brunswick, CAN, CanadaUniversite Louis Pasteur, CAN, CanadaUniversity of Ottawa, CAN, CanadaGeological Survey of Norway, NOR, NorwayInco Technical Services, CAN, Canada
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 200309
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