Berner RA (2004) The Phanerozoic Carbon Cycle: CO2 and O2. Oxford University Press, New York.Berner, R. A. 2004 The phanerozoic carbon cycle: CO2 and O2. Oxford, UK: Oxford University Press.BERNER, R.A. 2004. The Phanerozoic Carbon Cycle: CO2 and O2. Oxford University Press, New York...
Atmospheric carbon dioxide and oxygen concentrations are partially linked via the geological cycle of organic carbon (Fig. 1A–C; e.g. CO2 + H2O ↔ CH2O + O2). The history of these two biologically active components, controls on their concentrations, and implications for the complexity of the...
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Berner RA, Kothavala Z (2001) GEOCARB III: a revised model of atmospheric CO2 over Phanerozoic time. Am J Sci 301:182–204 CAS Google Scholar Berner RA, Lasaga AC, Garrels RM (1983) The carbonate-silicate geochemical cycle and its effect on atmospheric carbon dioxide over the last 100...
body. In the event of a CO2 leak, the CO2 will begin to displace the O2 in the area, however, O2 sensors typically have alarm levels set at around 19.5% and 18% so by the time the CO2 has displaced enough oxygen to trigger these alarm levels the CO2 levels will be dangerously high...
Direct Heat CO2 Incubator The In-VitroCell NU-5831 is a specialized incubator that regulates oxygen levels within its growth chamber. It employs a Zirconia Ceramic O2 sensor to monitor oxygen levels and introduces Nitrogen gas to maintain the desired setpoint when needed. With a 200-liter capacit...
In below-ground experiments, CH4 (m/z = 15) concentration showed diurnal cycles at 2, 5 and 10 cm depth. The CH4 production had the same diurnal phase cycle as CO2 but with lower amplitude. Evidence of below-ground diurnal oscillations in N2 (m/z = 28) concentration was provided at 5...
This total system of interacting carbon reservoirs is called the global carbon cycle. The atmospheric CO2 concentration is generally given as the CO2 mixing ratio, the concentration ratio of CO2 and air (`~78% N2 + 21% O2 + ~1% Ar). Fig.6.1 shows the results of measurements of the ...
The results thus obtained can most clearly be represented by graphs:1. The exchange rates of O2 and CO2, together with the influence of the Bohr effect and Christiansen-Douglas-Haldane effect of the blood, determine the course of the "effective O2 and...被引量: 5 年份: 1968 ...
the physical, chemical, and biological processes that control carbon dioxide (CO2) and dissolved oxygen (DO) variability in the AO are crucial to predicting the future of the carbon cycle in the region and its impact on greenhouse gases and marine ecosystem processes, such as ocean acidification...