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| 1 | CO2-induced destabilization of pyrite-structured FeO2Hx in the lower mantle显示文摘Volatiles, such as carbon and water, modulate the Earth's mantle rheology, partial melting and redox state,thereby playing a crucial role in the Earth's internal dynamics. We experimentally show the transformation of goethite FeOOH in the presence of CO_2 into a tetrahedral carbonate phase, Fe_4C_3O_(12), at conditions above 107 GPa—2300 K. At temperatures below 2300 K, no interactions are evidenced between goethite and CO_2, and instead a pyrite-structured FeO_2 Hx is formed as recently reported by Hu et al.(2016; 2017)and Nishi et al.(2017). The interpretation is that, above a critical temperature, FeO_2 Hx reacts with CO_2 and H_2, yielding Fe_4C_3O_(12) and H_2 O. Our findings provide strong support for the stability of carbon-oxygen-bearing phases at lower-mantle conditions. In both subducting slabs and lower-mantle lithologies, the tetrahedral carbonate Fe_4C_3O_(12) would replace the pyrite-structured FeO_2 Hx through carbonation of these phases. This reaction provides a new mechanism for hydrogen release as H2 O within the deep lower mantle. Our study shows that the deep carbon and hydrogen cycles may be more complex than previously thought, as they strongly depend on the control exerted by local mineralogical and chemical environments on the CO_2 and H_2 thermodynamic activities. | Eglantine Boulard Francois Guyot Nicolas Menguy Alexandre Corgne Anne-Line Auzende Jean-Philippe Perrillat Guillaume Fiquet | 2018 | National Science Review2018，5，6： | 2 |
| 2 | Arthroscopic treatment of capitellum fracture of the humerus显示文摘 | Hardy P Menguy F Guillot S | 2002 | Arthroscopy2002，18，4： | 1 |
| 3 | TG1050,an immunotherapeutic to treat chronic hepatitis B,induces robust T cells and exerts an antiviral effect in HBVpersistent mice显示文摘 | Martin P Dubois C Jacquier E Dion S ManciniBourgine M Godon O Kratzer R Lelu-Santolaria K Evlachev A Meritet J F Schlesinger Y Villeval D Strub J M Van Dorsselaer A Marchand J B Geist M Brandely R Findeli A Boukhebza H Menguy T Silvestre N Michel M L InchauspéG | 2015 | Gut2015，64，12： | 1 |
| 4 | Effects of red wine polyphenols on postischemic neovaseularization model in rats : low doses are proangiogenic, high doses anti-angiogenie显示文摘 | BARON MENGUY C BOCQUET A GUIHOT A L | 2007 | FASEB J2007，21，13： | 1 |
| 5 | Analysing the various obstacles to cornea postmortemprocuremetn显示文摘 | Muraine M Toubeau D Menguy E | 2002 | Br J Ophthalmal2002，86，： | 1 |
| 6 | Arthroscopic treat- ment of capitellum fracture of the humerus 显示文摘 | Hardy P Menguy F Guillot S | 2002 | A Rth roscopy2002，18，4： | 1 |
| 7 | Size-, composition-and shape dependent toxicological impact of metal oxide nanoparticles and carbon nanotubes toward bacteria 显示文摘 | Simon-Deckers A Loo S Mayne-L' hermite M Herlin Boime N Menguy N Reynaud C | 2009 | Environ Sci Technol2009，43，： | 1 |
| 8 | Role of gastric mucosal, energy metabolism in the etiology of stress ulceration显示文摘 | Menguy R | 1981 | World Journal of Surgery1981，5，2： | 1 |
| 9 | Arthroscopic treatment of capitellum fracture of the humerus 显示文摘 | Hardy P Menguy F Guillot S | 2002 | Arthroscopy2002，18，4： | 1 |
| 10 | Electrical properties of PbTe doped with BaF2显示文摘 | Mengui V A Abramof E Rappl P H O | 2009 | J Appl Phys2009，105，04： | 1 |
| 11 | Biomineralization,crystallography and magnetic properties of bullet-shaped magnetite magnetosomes in giant rod magnetotactic bacteria显示文摘 | LiJ H Pan Y X Liu Q S Zhang K Y Menguy N Che R C Qin H F Lin W Wu W F and Petersen N | | 0，，3： | 1 |
| 12 | Detrimental hemodynamic and in-flammatory effects of microparticles originating from septic rats显示文摘 | Mortaza S Martinez MC Baron - Menguy C | 2009 | Crit Care Med2009，37，6： | 1 |
| 13 | Arthroscopic treatment of capitellum fracture of the humerus显示文摘 | Hardy P Menguy F Guillot S | 2002 | Arthroscopy2002，18，： | 1 |
| 14 | Analysing the various obstacles to cornea postmortem procuremet n显示文摘 | Muraine M Toubeau D Menguy E | | 0，，03： | 1 |
| 15 | Analysing the various obstacles to cornea postmortem procurement 显示文摘 | Muraine M Toubeau D Menguy E Brasseur G | 2002 | Br J Ophthalmol2002，86，8： | 1 |
| 16 | Electrical properties of PbTe doped with BaF2 显示文摘 | MENGUI U A ABRAMOF E RAPPL P H O | 2009 | J Appl Phys2009，105，04： | 1 |
| 17 | Analysing the various obstacles to cornea postmortem proeurement显示文摘 | Muraine M Toubeau D Menguy E | 2002 | British Journal of Ophthalmology2002，86，8： | 1 |
| 18 | Analysing the various ob-stacles to cornea postmortem procurement 显示文摘 | Muraine M Toubeau D Menguy E | 2002 | Br J Ophthalmol2002，86，8： | 1 |
| 19 | Analysing the various obstacles to cornea postmortem procurement显示文摘 | Muraine M Toubeau D Menguy E | 2002 | BrJophthamol2002，86，8： | 1 |
| 20 | Effect of selenium on the growth of three human colon cancer cell lines 显示文摘 | Nano JL Czerucka D Menguy F | 1989 | Biol Trace Elem Res1989，20，12： | 1 |
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