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Peak splitting xray diffraction7/29/2023 Portions of this work were performed at GeoSoilEnviroCARS (The University of Chicago, Sector 13), Advanced Photon Source (APS), supported by the Argonne National Laboratory. This work was supported by the US NSF EAR-1522560. Zhang J, Reeder R (1999) Comparative compressibilities of calcite-structured carbonates: Deviations from empirical relations. The composition of associated carbonates. Thornber MR, Nickel EH (1976) Supergene alteration of sulphides. Shannon RD (1976) Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Prescher C, Prakapenka VB (2015) DIOPTAS: a program for reduction of two-dimensional X-ray diffraction data and data exploration. Nickel EH, Clout JFM, Gartrell BJ (1994) Secondary nickel minerals from Widgiemooltha. Momma K, Izumi F (2011) VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data. Merlini M, Hanfland M, Gemmi M (2015) The MnCO3-II high-pressure polymorph of rhodochrosite. Merlini M, Hanfland M, Crichton WA (2012) CaCO3-III and CaCO3-VI, high-pressure polymorphs of calcite: possible host structures for carbon in the Earth’s mantle. Mao HK, Xu J, Bell PM (1986) Calibration of the ruby pressure gauge to 800 kbar under quasi-hydrostatic conditions. Lavina B, Dera P, Down RT, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of Siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition. Kohls DW, Rodda JL (1966) Gaspéite (Ni, Mg, Fe) (CO3), a new carbonate from the Gaspé peninsula, Quebec. Klotz S, Chervin JC, Munsch P, Marchand GL (2009) Hydrostatic limits of 11 pressure transmitting media. Isshiki M, Irifune T, Hirose K, Ono S, Ohishi Y, Watanuki T, Nishibori E, Takata M, Sakata M (2004) Stability of magnesite and its high-pressure form in the lowermost mantle. Holland TJB, Redfern SAT (1997) Unit cell refinement from powder diffraction data: the use of regression diagnostics. Graf DL (1961) Crystallographic tables for the rhombohedral carbonates. Gillet P (1993) Stability of magnesite (MgCO 3) at mantle pressure and temperatures conditions: a Raman spectroscopic study. Am Miner 103:1988–1998įiquet G, Guyot F, Itie JP (1994) High pressure X-ray diffraction study of carbonates: MgCO 3, CaMg(CO 3) 2, and CaCO 3. Am Miner 98:1817–1823įarsang S, Facq S, Redfern SAT (2018) Raman modes of carbonate minerals as pressure and temperature gauges up to 6 GPa and 500 C. Am Miner 97(8–9):1421–1426įarfan GA, Boulard E, Wang S, Mao WL (2013) Bonding and electronic changes in rhodochrosite at high pressure. Earth Planet Sci Lett 298:1–13įarfan G, Wang S, Ma H, Caracas R, Mao W (2012) Bonding and structural changes in siderite at high pressure. J Phys Chem C 124(36):19781–19792ĭasgupta R, Hirschmann MM (2010) The deep carbon cycle and melting in Earth’s interior. Ĭhulia-Jordan R, Santamaria-Perez D, Ortero-de-la-Roza A, Ruiz-Fuertes J, Marqueno T, Gomis O, MacLeod S, Popescu C (2020) Phase stability of natural Ni0.75Mg0.22Ca0.03CO3 gaspeite mineral at high pressure and temperature. Clarendon Press, OxfordĬhariton S, Cerantola V, Ismailova L, Bykova E, Bykov M, Kupenko I, McCammon C, Dubrovinsky L (2017) The high-pressure behavior of spherocobaltite (CoCO3): a single crystal Raman spectroscopy and XRD study. Phys Rev 71:809īorn M, Huang K (1954) Dynamical theory of crystal lattices. Geochem Cosmochim Acta 63:1527–1535īirch F (1947) Finite elastic strain of cubic crystals. Ultimately, information in this dataset may facilitate predictions of mixing energetics amongst the calcite-structured carbonates, and therefore help determine the role of carbonates in the transition metal geochemistry of the deep Earth.Īlt JC, Teagle DAH (1999) The uptake of carbon during alteration of the oceanic crust. These results contribute to growing experimental evidence that suggests some carbonates can be stable at lower mantle conditions. Additionally, we have determined the isothermal Grüneisen parameter for each of the traced Raman modes. We calculate a bulk modulus ( K 0T) of 136(4) GPa and a K′ value of 4.6(3). Our experimental data show that gaspéite maintains the calcite structure up to 50 GPa, reverts to its zero-pressure volume on decompression with little hysteresis, and can be fit by a 3rd-order Birch–Murnaghan equation of state. We have studied the high-pressure behavior of gaspéite using diamond anvil cells, Raman spectroscopy, and X-ray diffraction. While carbonates have been extensively studied under high-pressure and -temperature conditions, they exhibit different behaviors. Our study is motivated by our interest in understanding high-pressure carbonate behavior. Here, we present new measurements of the phase stability and lattice compressibility of gaspéite (NiCO 3) to 50 GPa.
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