By P.A. Trudinger, Dalway J. Swaine
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Additional info for Biogeochemical Cycling of Mineral-Forming Elements
An early and sudden rise of oxygen levels is, however, more consistent with the sedimentary evidence in the oxidation state of both Precambrian and Phanerozoic marine sediments (Dimroth and Kimberley, 1976). P. onwards (Gebelein, 1976, p. , 1976, p. 166). Most recent stromatolites are built by the oxygen-releasing photosynthetic organisms? cyanophytes. However, non-biogenic and bacterial stromatolites have been discussed by Walter 40 (1976a, b), Monty (1971) and Doemel and Brock (1974) which implies that the presence of stromatolitic structures does not necessarily indicate oxygen release.
Calcium carbonate retention in supersaturated seawater. Am. J. , 273: 515-522. , 1970. Exogenous inorganic carbon sources in plant photosynthesis. Biol. , 45: 167-221. A. , 1977. Impact of prehistoric and present fire patterns on the carbon dioxide content of the atmosphere. In: W. Stumm (Editor), Global Chemical Cycles and their Alterations by Man. Dahlem Konferenzen, Akabon, Berlin, pp. 121-135. , 1921. Das elektrolytische Leitvermogen verdunnter Losungen unter dem Einflusse submerser Gewachse.
1976, p. 166). Most recent stromatolites are built by the oxygen-releasing photosynthetic organisms? cyanophytes. However, non-biogenic and bacterial stromatolites have been discussed by Walter 40 (1976a, b), Monty (1971) and Doemel and Brock (1974) which implies that the presence of stromatolitic structures does not necessarily indicate oxygen release. Thus the calendar date for the origin of photosynthesis remains obscure. This date may be difficult t o determine if the transition from the reducing to the oxidizing atmosphere indeed took place early and within a geologically short time.
Biogeochemical Cycling of Mineral-Forming Elements by P.A. Trudinger, Dalway J. Swaine