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The carbon-isotope signature of diagenetic carbonates
2020<p>Diagenetic carbonates often show large variations in their carbon isotope compositions. Variations are mainly the result of isotope fractionation effects during microbial metabolic processes, and these processes themselves may induce carbonate formation.
Patrick Meister, Carolina Reyes
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Carbon Isotopes and Microbial Sediments
2000Microbial sediments of the biolaminated type, generated by the matting behavior of preferentially prokaryotic microbenthos, commonly carry the isotopic signatures of both the primary microbial biomass and of the carbonate of the surrounding sediment matrix.
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Isomeres and isotopes of carbon
2020The nuclear geometry has been developed by analogy with the fullerene geometry. On the base of this geometric approach, the structure of carbon isomers and isotopes, which can be obtained by means of nuclear synthesis, has been designed. The mechanisms of possible nuclear reaction are discussed. Carbon is an unusual element.
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Modern Strategies for Carbon Isotope Exchange
Angewandte Chemie - International Edition, 2023Frédéric Taran +2 more
exaly
1993
The stable isotopes of carbon occur in relatively constant proportions throughout the global carbon pool, with 98.89% comprising 12C, and 13C making up 1.11%. However, small but significant variations occur in the proportion of the heavy isotope 13C incorporated into organic and inorganic matter. These depend on the extent of discrimination against (or
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The stable isotopes of carbon occur in relatively constant proportions throughout the global carbon pool, with 98.89% comprising 12C, and 13C making up 1.11%. However, small but significant variations occur in the proportion of the heavy isotope 13C incorporated into organic and inorganic matter. These depend on the extent of discrimination against (or
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1983
The 13C + 13C total fusion cross section has been determined in the range 3.26 ≤ Ec.m. ≤ 8.0 MeV using Ge(Li) detector measurements of low-lying transitions in the residual nuclei and a statistical model calculation of excited state populations. Six different residual nuclei have been observed and their production yields are given.
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The 13C + 13C total fusion cross section has been determined in the range 3.26 ≤ Ec.m. ≤ 8.0 MeV using Ge(Li) detector measurements of low-lying transitions in the residual nuclei and a statistical model calculation of excited state populations. Six different residual nuclei have been observed and their production yields are given.
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CARBON ISOTOPE ANALYSIS DEVICE AND CARBON ISOTOPE ANALYSIS METHOD
2016IGUCHI TETSUO +8 more
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Photochemical Strategy for Carbon Isotope Exchange With CO2
ACS Catalysis, 2021Frédéric Taran +2 more
exaly