McCammon, C;
Bureau, H;
Cleaves, HJ;
Cottrell, E;
Dorfman, SM;
Kellogg, LH;
Li, J;
... Brovarone, AV; + view all
(2020)
Deep Earth Carbon Reactions Through Time and Space.
American Mineralogist
, 105
(1)
pp. 22-27.
10.2138/am-2020-6888CCBY.
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Abstract
Reactions involving carbon in the deep Earth have limited manifestations on Earth’s surface, yet they have played a critical role in the evolution of our planet. The metal-silicate partitioning reaction promoted carbon capture during Earth’s accretion and may have sequestered substantial carbon in Earth’s core. The freezing reaction involving iron-carbon liquid could have contributed to the growth of Earth’s inner core and the geodynamo. The redox melting/freezing reaction largely controls the movement of carbon in the modern mantle, and reactions between carbonates and silicates in the deep mantle also promote carbon mobility. The 10-year activity of the Deep Carbon Observatory has made important contributions to our knowledge of how these reactions are involved in the cycling of carbon throughout our planet, both past and present, and has helped to identify gaps in our understanding that motivate and give direction to future studies.
| Type: | Article |
|---|---|
| Title: | Deep Earth Carbon Reactions Through Time and Space |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.2138/am-2020-6888CCBY |
| Publisher version: | https://doi.org/10.2138/am-2020-6888CCBY |
| Language: | English |
| Additional information: | This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | Inner core, geodynamo, subduction, diamond, carbonate, carbon-rich fluids and melts, oxygen fugacity, metal-silicate partitioning, redox freezing and melting; Earth in Five Reactions: A Deep Carbon Perspective |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10080763 |
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