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Deep Earth carbon reactions through time and space.
- Source :
- American Mineralogist; Jan2020, Vol. 105 Issue 1, p22-27, 6p
- Publication Year :
- 2020
-
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. [ABSTRACT FROM AUTHOR]
- Subjects :
- SIDEROPHILE elements
EARTH'S core
SPACETIME
SURFACE of the earth
CARBON
Subjects
Details
- Language :
- English
- ISSN :
- 0003004X
- Volume :
- 105
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- American Mineralogist
- Publication Type :
- Academic Journal
- Accession number :
- 141030966
- Full Text :
- https://doi.org/10.2138/am-2020-6888CCBY