[1] FROST D J, MCCAMMON C A. The redox state of Earth’s mantle [J]. Annual Review of Earth and Planetary Sciences, 2008, 36(1): 389–420. doi: 10.1146/annurev.earth.36.031207.124322
[2] STAGNO V, FROST D J. Carbon speciation in the asthenosphere: experimental measurements of the redox conditions at which carbonate-bearing melts coexist with graphite or diamond in peridotite assemblages [J]. Earth and Planetary Science Letters, 2010, 300(1/2): 72–84.
[3] LITASOV K D, SHATSKIY A. Carbon-bearing magmas in the Earth’s deep interior [M]//Magmas Under Pressure. Amsterdam: Elsevier, 2018: 43–82.
[4] DASGUPTA R, HIRSCHMANN M M. Melting in the Earth’s deep upper mantle caused by carbon dioxide [J]. Nature, 2015, 440(7084): 659–662.
[5] ROHRBACH A, SCHMIDT M W. Redox freezing and melting in the Earth’s deep mantle resulting from carbon-iron redox coupling [J]. Nature, 2011, 472(7342): 209–212. doi: 10.1038/nature09899
[6] DASGUPTA R, HIRSCHMANN M M. The deep carbon cycle and melting in Earth’s interior [J]. Earth & Planetary Science Letters, 2010, 298(1/2): 1–13.
[7] SAAL A E, HAURI E H, LANGMUIR C H, et al. Vapour undersaturation in primitive mid-ocean-ridge basalt and the volatile content of Earth’s upper mantle [J]. Nature, 2002, 419(6906): 451–455. doi: 10.1038/nature01073
[8] HIRSCHMANN M M, DASGUPTA R. The H/C ratios of Earth’s near-surface and deep reservoirs, and consequences for deep Earth volatile cycles [J]. Chemical Geology, 2009, 262(1/2): 4–16.
[9] DASGUPTA R. Ingassing, storage, and outgassing of terrestrial carbon through geologic time [J]. Reviews in Mineralogy and Geochemistry, 2013, 75(1): 183–229. doi: 10.2138/rmg.2013.75.7
[10] HAZEN R M, DOWNS R T, JONES A P, et al. Carbon mineralogy and crystal chemistry [J]. Reviews in Mineralogy and Geochemistry, 2013, 75(1): 7–46. doi: 10.2138/rmg.2013.75.2
[11] LEUNG I S. Silicon carbide cluster entrapped in a diamond from Fuxian, China [J]. American Mineralogist, 1990, 75(9/10): 1110–1119.
[12] SCHRAUDER M, NAVON O. Solid carbon dioxide in a natural diamond [J]. Nature, 1993, 365(6441): 42–44. doi: 10.1038/365042a0
[13] KAMINSKY F. Mineralogy of the lower mantle: a review of ‘super-deep’ mineral inclusions in diamond [J]. Earth-Science Review, 2012, 110(1/2/3/4): 127–147. doi: 10.1016/j.earscirev.2011.10.005
[14] SMITH E M, SHIREY S B, NESTOLA F, et al. Large gem diamonds from metallic liquid in Earth’s deep mantle [J]. Science, 2016, 354(6318): 1403. doi: 10.1126/science.aal1303
[15] STAGNO V, TANGE Y, MIYAJIMA N, et al. The stability of magnesite in the transition zone and the lower mantle as function of oxygen fugacity [J]. Geophysical Research Letters, 2011, 38(19): 570–583.
[16] MAEDA F, OHTANI E, KAMADA S, et al. Diamond formation in the deep lower mantle: a high-pressure reaction of MgCO3 and SiO2 [J]. Scientific Reports, 2017, 7: 40602. doi: 10.1038/srep40602
[17] LI X, ZHANG Z, LIN J F, et al. New high pressure phase of CaCO3 at the topmost lower mantle: Implication for the deep mantle carbon transportation [J]. Geophysical Research Letters, 2018, 45: 1355–1360. doi: 10.1002/2017GL076536
[18] MARTIROSYAN N S, LITASOV K D, LOBANOV S S, et al. The Mg-carbonate-Fe interaction: implication for the fate of subducted carbonates and formation of diamond in the lower mantle [J]. Geoscience Frontiers, 2019, 10(4): 1449–1458. doi: 10.1016/j.gsf.2018.10.003
[19] DORFMAN S M, BADRO J, NABIEI F, et al. Carbonate stability in the reduced lower mantle [J]. Earth and Planetary Science Letters, 2018, 489: 84–91. doi: 10.1016/j.jpgl.2018.02.035
[20] HAMILTON D L. The preparation of silicate compositions by a gelling method [J]. Mineralogical Magazine, 1968, 36(282): 832–838. doi: 10.1180/minmag.1968.036.282.11
[21] YINGWEI F, ANGELE R, MARK F, et al. Toward an internally consistent pressure scale [J]. Proceedings of the National Academy of Sciences of the United States of America, 2007, 104(22): 9182–9186. doi: 10.1073/pnas.0609013104
[22] CAMPBELL A J, DANIELSON L, RIGHTER K, et al. High pressure effects on the iron-iron oxide and nickel-nickel oxide oxygen fugacity buffers [J]. Earth and Planetary Science Letters, 2009, 286(3/4): 556–564.
[23] MENG Y, HRUBIAK R, ROD E, et al. New developments in laser-heated diamond anvil cell with in situ synchrotron X-ray diffraction at High Pressure Collaborative Access Team [J]. Review of Scientific Instruments, 2015, 86(7): 072201. doi: 10.1063/1.4926895
[24] PRAKAPENKA V B, KUBO A, KUZNETSOV A, et al. Advanced flat top laser heating system for high pressure research at GSECARS: application to the melting behavior of germanium [J]. High Pressure Research, 2008, 28(3): 225–235. doi: 10.1080/08957950802050718
[25] HOLLAND T J B, REDFERN S A T. Unit cell refinement from powder diffraction data: the use of regression diagnostics [J]. Mineralogical Magazine, 1997, 61(404): 65–77. doi: 10.1180/minmag.1997.061.404.07
[26] BOFFA-BALLARAN T, KURNOSOV A, GLAZYRIN K, et al. Effect of chemistry on the compressibility of silicate perovskite in the lower mantle [J]. Earth and Planetary Science Letters, 2012, 333/334: 181–190. doi: 10.1016/j.jpgl.2012.03.029
[27] DORFMAN S M, MENG Y, PRAKAPENKA V B, et al. Effects of Fe-enrichment on the equation of state and stability of (Mg,Fe)SiO3 perovskite [J]. Earth and Planetary Science Letters, 2013, 361(1): 249–257.
[28] KUDOH Y, PREWITT C T, FINGER L W, et al. Effect of iron on the crystal structure of (Mg,Fe)SiO3 perovskite [J]. Geophysical Research Letters, 1990, 17(10): 1481–1484. doi: 10.1029/GL017i010p01481
[29] FEI Y, WANG Y, FINGER L W. Maximum solubility of FeO in (Mg, Fe)SiO3-perovskite as a function of temperature at 26 GPa: implication for FeO content in the lower mantle [J]. Journal of Geophysical Research Solid Earth, 1996, 101(B5): 11525–11530. doi: 10.1029/96JB00408
[30] LUNDIN S, CATALLI K, J. SANTILLÁN, et al. Effect of Fe on the equation of state of mantle silicate perovskite over 1 Mbar [J]. Physics of the Earth and Planetary Interiors, 2008, 168(1): 97–102.
[31] ITO E, YAMADA H. Stability relations of silicate spinels, ilmenites, and perovskites [M]//High Pressure Research in Geophysics. Tokyo: Center for Publication, 1982: 405-419.
[32] MAO H K, HEMLEY R J, FEI Y, et al. Effect of pressure, temperature, and composition on lattice parameters and density of (Fe,Mg)SiO3-perovskites to 30 GPa [J]. Journal of Geophysical Research: Solid Earth, 1991, 96(B5).
[33] WANG Y, WEIDENER D J, LIEBERMANN R C, et al. P-V-T equation of state of (Mg, Fe)SiO3 perovskite: constraints on composition of the lower mantle [J]. Physics of the Earth and Planetary Interiors, 1996, 83(1): 13–40.
[34] FIQUET G, ANDRAULT D, DEWAELE A, et al. P-V-T, equation of state of MgSiO3, perovskite [J]. Physics of the Earth & Planetary Interiors, 1998, 105(1/2): 21–31.
[35] TANGE Y, TAKAHASHI E, NISHIHARA Y, et al. Phase relations in the system MgO-FeO-SiO2 to 50 GPa and 2 000 ℃: an application of experimental techniques using multianvil apparatus with sintered diamond anvils [J]. Journal of Geophysical Research Solid Earth, 2009, 114(B2): 1–14.
[36] ANDRAULT D, BOLFAN-CASANOVA N, GUIGNOT N. Equation of state of lower mantle (Al,Fe)-MgSiO3 perovskite [J]. Earth and Planetary Science Letters, 2001, 193(3/4): 501–508.
[37] FROST D J, LIEBSKE C, LANGENHORST F, et al. Experimental evidence for the existence of iron-rich metal in the Earth’s lower mantle [J]. Nature, 2004, 428(6981): 409–412. doi: 10.1038/nature02413
[38] MCCAMMON C A. The crystal chemistry of ferric iron in Fe0.05Mg0.95SiO3 perovskite as determined by Mössbauer spectroscopy in the temperature range 80–293 K [J]. Physics & Chemistry of Minerals, 1998, 25(4): 292–300.
[39] MCCAMMON C A, LAUTERBACH S, SEIFERT F, et al. Iron oxidation state in lower mantle mineral assemblages: I. empirical relations derived from high-pressure experiments [J]. Earth and Planetary Science Letters, 2004, 222(2): 435–449. doi: 10.1016/j.jpgl.2004.03.018
[40] IOTA V, YOO C S, CYNN H. Quartzlike carbon dioxide: an optically nonlinear extended solid at high pressures and temperatures [J]. Science, 1999, 283(5407): 1510–1513. doi: 10.1126/science.283.5407.1510
[41] TSCHAUNER O, MAO H K, HEMLEY R J. New Transformations of CO2 at high pressures and temperatures [J]. Physical Review Letters, 2001, 87(7): 075701. doi: 10.1103/PhysRevLett.87.075701
[42] LITASOV K D, GONCHAROV A F, HEMLEY R J. Crossover from melting to dissociation of CO2 under pressure: implications for the lower mantle [J]. Earth & Planetary Science Letters, 2011, 309(3/4): 318–323.
[43] BOATES B, TEWELDEBERHAN A M, BONEV S A. Stability of dense liquid carbon dioxide [J]. Proceedings of the National Academy of Sciences, 2012, 109(37): 14808–14812. doi: 10.1073/pnas.1120243109
[44] TEWELDEBERHAN A M, BOATES B, BONEV S A. CO2 in the mantle: melting and solid–solid phase boundaries [J]. Earth and Planetary Science Letters, 2013, 373: 228–232. doi: 10.1016/j.jpgl.2013.05.008
[45] DZIUBEK K F, MARTIN E, DEMETRIO S, et al. Crystalline polymeric carbon dioxide stable at megabar pressures [J]. Nature Communications, 2018, 9(1): 3148. doi: 10.1038/s41467-018-05593-8
[46] HOLLAND T J B, POWELL R. An improved and extended internally consistent thermodynamic dataset for phases of petrological interest, involving a new equation of state for solids [J]. Journal of Metamorphic Geology, 2011, 29: 333–383. doi: 10.1111/j.1525-1314.2010.00923.x
[47] XU W, LITHGOW-BERTELLONI C, STIXRUDE L, et al. The effect of bulk composition and temperature on mantle seismic structure [J]. Earth and Planetary Science Letters, 2008, 275(1/2): 70–79.
[48] FISCHER R A, CAMPBELL A J, CHIDESTER B A, et al. Equations of state and phase boundary for stishovite and CaCl2-type SiO2 [J]. American Mineralogist, 2018, 103(5): 792–802. doi: 10.2138/am-2018-6267
[49] NAKAJIMA Y, FROST D J, RUBIE D C. Ferrous iron partitioning between magnesium silicate perovskite and ferropericlase and the composition of perovskite in the Earth’s lower mantle [J]. Journal of Geophysical Research Solid Earth, 2012, 117: B08201.
[50] FROST D J, WOOD B J. Experimental measurements of the fugacity of CO2 and graphite/diamond stability from 35 to 77 kbar at 925 to 1 650 ℃ [J]. Geochimica et Cosmochimica Acta, 1997, 61(8): 1565–1574. doi: 10.1016/S0016-7037(97)00035-5
[51] WILDING M C, HARTE B, HARRIS J W. Evidence for a deep origin for Sao Luiz diamonds [C]//Fifth International Kimberlite Conference, 1991.
[52] KLEIN-BENDAVID O, WIRTH R, NAVON O. Micrometer-scale cavities in fibrous and cloudy diamonds: a glance into diamond dissolution events [J]. Earth and Planetary Science Letters, 2007, 264(1/2): 89–103. doi: 10.1016/j.jpgl.2007.09.004
[53] VAN DER HILST R D, WIDIYANTORO S, ENGDAHL E R. Evidence for deep mantle circulation from global tomography [J]. Nature, 1997, 386(6625): 578–584. doi: 10.1038/386578a0
[54] STAGNO V, OJWANG D O, MCCAMMON C A, et al. The oxidation state of the mantle and the extraction of carbon from Earth’s interior [J]. Nature, 2013, 493(7430): 84–88. doi: 10.1038/nature11679
[55] HIROSE K, TAKAFUJI N, SATA N, et al. Phase transition and density of subducted MORB crust in the lower mantle [J]. Earth and Planetary Science Letters, 2005, 237(1/2): 239–251.
[56] HIROSE K, FEI Y, MA Y, et al. The fate of subducted basaltic crust in the Earth’s lower mantle [J]. Nature, 1999, 397(397): 53–56.