Untersuchungen zur Isotopensignatur von Methan und Kohlendioxid aus biogenen Gasen unterschiedlicher Quellen

Autor:	H.-M. Nitzsche, K. Mühle, J. Boine
Rok vydání:	1997
Předmět:	δ13C Stable isotope ratio Diffusion Inorganic chemistry Carbon-13 Methane Inorganic Chemistry chemistry.chemical_compound Landfill gas chemistry Environmental chemistry Kinetic isotope effect Carbon dioxide Environmental Chemistry General Environmental Science
Zdroj:	Isotopes in Environmental and Health Studies. 33:251-259
ISSN:	1477-2639 1025-6016
Popis:	The isotopic compositions of biogenic carbon dioxide and methane from different sites were investigated. The δ13C values of methane vary mainly between −55‰ and −75‰ whereas δ13C values of carbon dioxide were found from about + 11‰ to −23‰. Especially the latter ones are not so typical for microbial gases. The different sites don't vary over the whole scales but form certain groups. Secondary effects like diffusion change the δ values of both components in an even more negative direction, while oxidation processes near the surface result in more positive δ13C values for methane and very negative δ13C values for carbon dioxide.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::02c70d1b8870c5d7e5eb77c2bd335357 https://doi.org/10.1080/10256019808036377 Zobrazit plný text záznamu