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Most carbon is cycled through the atmosphere into living organisms and then respirated back into the atmosphere. However an important part of the carbon cycle involves the trapping of living matter into sediments. The carbon then becomes part of a sedimentary rock when lithification happens. Human technology or natural processes such as ...
Robert Arbuckle Berner (November 25, 1935 – January 10, 2015) was an American scientist known for his contributions to the modeling of the carbon cycle. [2] He taught Geology and Geophysics from 1965 to 2007 at Yale University, where he latterly served as Professor Emeritus until his death.
The carbonate-silicate cycle is the primary control on carbon dioxide levels over long timescales. [3] It can be seen as a branch of the carbon cycle, which also includes the organic carbon cycle, in which biological processes convert carbon dioxide and water into organic matter and oxygen via photosynthesis. [5]
Ocean mixed layer carbon, c m, is the only explicitly modelled ocean stock of carbon; though to estimate carbon cycle feedbacks the total ocean carbon is also calculated. [ 107 ] Current trends in climate change lead to higher ocean temperatures and acidity , thus modifying marine ecosystems. [ 108 ]
In particular, biogeochemistry is the study of biogeochemical cycles, the cycles of chemical elements such as carbon and nitrogen, and their interactions with and incorporation into living things transported through earth scale biological systems in space and time. The field focuses on chemical cycles which are either driven by or influence ...
Duplessy turned to the ocean because of its role as a climate regulator and its major impact on biogeochemical cycles, particularly the carbon cycle. His doctoral thesis work has focused on the geochemistry of stable carbon isotopes in the sea. [7]
The journal covers topics in Earth geochemistry, planetary geochemistry, cosmochemistry and meteoritics. Publishing formats include original research articles and invited reviews and occasional editorials, book reviews, and announcements. In addition, the journal publishes short comments (4 pages) targeting specific articles and designed to ...
Understanding these variations in carbon fractionation across species is applied in isotope geochemistry and ecological isotope studies to understand biochemical processes, establish food chains, or model the carbon cycle through geological time. [5] Carbon isotope fractionations are expressed in using delta notation of δ 13 C ("delta thirteen ...