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METHANE FORMATION BY LAKE SEDIMENTS DURING IN VITRO INCUBATION 1
Author(s) -
Macgregor A. N.,
Keeney D. R.
Publication year - 1973
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1973.tb05854.x
Subject(s) - methane , sediment , sulfate , environmental chemistry , acetylene , incubation , atmosphere (unit) , nitrate , radionuclide , environmental science , geology , mineralogy , hydrology (agriculture) , chemistry , geomorphology , biochemistry , physics , geotechnical engineering , organic chemistry , thermodynamics , quantum mechanics
Renewed ( de novo ) synthesis of methane gas was shown to occur when samples of lake sediment were dispersed on glass beads and incubated in a helium atmosphere at 23°C. Under the above conditions, sediment samples from hardwater and softwater lakes generated up to 440 nanomoles and 80 nanomoles per ml of sediment per two days, respectively. At the time of collection, sediment samples possessed approximately similar amounts of “native” methane. Nitrate, sulfate, and acetylene were shown to suppress methane synthesis by sediment incubated as described.