The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.
Stability of magnesite and its high-pressure form in the lowermost mantle
Abstract
Carbonates are important constituents of marine sediments and play a fundamental role in the recycling of carbon into the Earth's deep interior via subduction of oceanic crust and sediments. Study of the stability of carbonates under high pressure and temperature is thus important for modelling the carbon budget in the entire Earth system. Such studies, however, have rarely been performed under appropriate lower-mantle conditions and no experimental data exist at pressures greater than 80 GPa (refs 3-6). Here we report an in situ X-ray diffraction study of the stability of magnesite (MgCO(3)), which is the major component of subducted carbonates, at pressure and temperature conditions approaching those of the core-mantle boundary. We found that magnesite transforms to an unknown form at pressures above approximately 115 GPa and temperatures of 2,100-2,200 K (depths of approximately 2,600 km) without any dissociation, suggesting that magnesite and its high-pressure form may be the major hosts for carbon throughout most parts of the Earth's lower mantle.
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“High-pressure phase transitions were observed in magnesite and Fe-magnesite (Boulard et al., 2011;Isshiki et al., 2004).”
From Structures and Crystal Chemistry of Carbonate at Earth's Mantle Conditions (2020) · cites this paper as Isshiki et al., 2004
In the citing paper
“Considered to be a potentially major reservoir of carbon in the Earth's mantle (Wang et al., 1996; Isshiki et al., 2004; Hazen and Schiffries, 2013)”
From Clumped-isotope thermometry of magnesium carbonates in ultramafic rocks (2016) · cites this paper as Isshiki et al., 2004
Citations
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Cited by
Sorted by citations
The deep carbon cycle and melting in Earth's interior
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High-pressure phases of CaCO3: Crystal structure prediction and experiment
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Self-citationCarbon solubility in mantle minerals
Shcheka, S. S., Wiedenbeck, M., Frost, D. J., & Keppler, H. (2006) · Earth and Planetary Science Letters · doi:10.1016/j.epsl.2006.03.036 · Cited by 202
Metadata
- Authors
- Isshiki, M., Irifune, T., Hirose, K., Ono, S., Ohishi, Y., Watanuki, T., Nishibori, E., Takata, M., & Sakata, M.
- Affiliations
- Ehime University (JP)
- Tokyo Institute of Technology (JP)
- Japan Agency for Marine-Earth Science and Technology (JP)
- Japan Synchrotron Radiation Research Institute (JP)
- SPring-8 (JP)
- Nagoya University (JP)
- Corresponding author
- Isshiki, Maiko
- Irifune, Tetsuo
- Venue
- Nature
- Published
- 2004-01
- Volume
- 427
- Issue
- 6969
- Pages
- 60-63
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W1984885274
- Cited by
- 279
- References
- 26
- Citations by year
- 2026: 14 · 2025: 11 · 2024: 11 · 2023: 3 · 2022: 15 · 2021: 16 · 2020: 24 · 2019: 15 · 2018: 12 · 2017: 23 · 2016: 13 · 2015: 16 · 2014: 12 · 2013: 13 · 2012: 8
- FWCI
- 6.85
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature (publishedVersion)
- PubMed (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Geophysics › High-pressure geophysics and materials
- Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geological and Geochemical Analysis
- Physical Sciences › Materials Science › Materials Chemistry › Boron and Carbon Nanomaterials Research
- Keywords
- magnesite, high-pressure phase transformation, lower mantle, carbonate stability, subducted carbonates, carbon cycle, core-mantle boundary, in situ X-ray diffraction
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