Science, Volume 333, Issues 6039-6044John Michels (Journalist) American Association for the Advancement of Science, 2011 |
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Page 431
... carbon- isotope excursion ( CIE ) in 813Croc records ( TOC : total organic carbon ) ( 6 , 7 ) and a potential fourfold increase in atmospheric CO2 concen- trations ( 8 ) . Previously , the end - Triassic C - cycle perturbation has been ...
... carbon- isotope excursion ( CIE ) in 813Croc records ( TOC : total organic carbon ) ( 6 , 7 ) and a potential fourfold increase in atmospheric CO2 concen- trations ( 8 ) . Previously , the end - Triassic C - cycle perturbation has been ...
Page 432
... carbon release to the atmosphere [ e.g. , at the PETM ( 29 ) and in the early Toarcian ( 30 ) ] suggest a ~ 100 - ky recovery period for the 813C composition of exchangeable carbon reservoirs , in line with the residence time of carbon ...
... carbon release to the atmosphere [ e.g. , at the PETM ( 29 ) and in the early Toarcian ( 30 ) ] suggest a ~ 100 - ky recovery period for the 813C composition of exchangeable carbon reservoirs , in line with the residence time of carbon ...
Page 754
... carbon products and rather seems to shift the H2O - based reaction toward the forma- tion of C3H6 and C3Hg . In the presence of D2O , however , Mo nitrogenase shifts the product distribution back toward two - carbon products ...
... carbon products and rather seems to shift the H2O - based reaction toward the forma- tion of C3H6 and C3Hg . In the presence of D2O , however , Mo nitrogenase shifts the product distribution back toward two - carbon products ...
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