J. Adam and T. Green, Trace element partitioning between mica-and amphibole-bearing 676 garnet lherzolite and hydrous basanitic melt: 1. Experimental results and the investigation 677 of controls on partitioning behaviour, Contrib. Mineral. Petrol, vol.152, issue.1, pp.1-17, 2006.

A. Batki, E. Pál-molnár, M. É. Jankovics, A. C. Kerr, B. Kiss et al., Insights into the evolution of an alkaline magmatic system: An in situ trace element 680 study of clinopyroxenes from the Ditr?u Alkaline Massif, Romania. Lithos, vol.679, pp.51-71, 2018.

C. Baudouin and L. France, Trace element partitioning between wollastonite and alkaline 683 silicate magmas, Chemical Geology, vol.523, pp.88-94, 2019.

C. Baudouin and F. Parat, Role of volatiles (S, Cl, H2O) and silica activity on the 685 crystallization of haüyne and nosean in phonolitic magmas (Eifel, Germany and Saghro, p.686, 2015.

. Morocco, American Mineralogist, vol.100, issue.10, pp.2308-2322

C. Baudouin, F. Parat, C. M. Denis, and F. Mangasini, Nephelinite lavas at early stage of rift 689 initiation (Hanang volcano, North Tanzanian Divergence), Contrib. Mineral. Petrol, vol.690, issue.7, p.64, 2016.

C. D. Beard, . Van-hinsberg, . Vj, J. Stix, and M. Wilke, Clinopyroxene/melt trace element 692 partitioning in sodic alkaline magmas, Journal of Petrology, 2019.

J. H. Bédard, Parameterizations of calcic clinopyroxene-Melt trace element partition 694 coefficients, Geochemistry, Geophysics, vol.15, issue.2, pp.303-336, 2014.

S. L. Bennett, J. Blundy, and T. Elliott, The effect of sodium and titanium on crystal-melt 696 partitioning of trace elements, Geochimica et Cosmochimica Acta, vol.68, issue.10, pp.2335-2347, 2004.

J. Blundy and B. Wood, Prediction of crystal-melt partition coefficients from elastic 699 moduli, Nature, vol.372, issue.6505, p.452, 1994.

J. Blundy and B. Wood, Partitioning of trace elements between crystals and melts. Earth and 701 Planetary Science Letters, vol.210, pp.129-137, 2003.

J. D. Blundy, J. Robinson, and B. J. Wood, Heavy REE are compatible in clinopyroxene on 704 the spinel lherzolite solidus, Earth and Planetary Science Letters, vol.160, issue.3, pp.493-504, 1998.

P. Bottazzi, M. Tiepolo, R. Vannucci, A. Zanetti, R. Brumm et al., Distinct 707 site preferences for heavy and light REE in amphibole and the prediction of Amph/L D 708 REE, Contrib. Mineral. Petrol, vol.137, issue.1-2, pp.36-45, 1999.

S. Braunger, M. A. Marks, B. F. Walter, R. Neubauer, R. Reich et al., The petrology of the Kaiserstuhl Volcanic Complex, SW Germany: the importance of 711 metasomatized and oxidized lithospheric mantle for carbonatite generation, Journal of 712 Petrology, vol.710, issue.9, pp.1731-1762, 2018.

J. C. Brice, Some thermodynamic aspects of the growth of strained crystals, Journal, p.715, 1975.

, Crystal Growth, vol.28, issue.2, pp.90241-90250

M. Cameron and J. J. Papike, Crystal chemistry of silicate pyroxenes, Reviews in Mineralogy 717 and Geochemistry, vol.7, pp.5-92, 1980.

C. Dalou, K. T. Koga, N. Shimizu, J. Boulon, and J. L. Devidal, Experimental determination of F 719 and Cl partitioning between lherzolite and basaltic melt, Contrib. Mineral. Petrol, vol.163, issue.4, pp.591-609, 2012.

C. Dalou, J. Boulon, K. T. Koga, R. Dalou, and R. Dennen, DOUBLE FIT: Optimization 722 procedure applied to lattice strain model, Computers & Geosciences, vol.117, pp.49-56, 2018.

J. B. Dawson, Peralkaline nephelinite-natrocarbonatite relationships at Oldoinyo Lengai, 724 Tanzania, Journal of Petrology, vol.39, pp.2077-2094, 1998.

,

J. M. De-moor, T. P. Fischer, P. L. King, R. E. Botcharnikov, R. L. Hervig et al., Volatile-rich silicate melts from Oldoinyo Lengai volcano (Tanzania): Implications 728 for carbonatite genesis and eruptive behavior, Earth and Planetary Science Letters, vol.361, pp.729-379, 2013.

G. Droop, A general equation for estimating Fe 3+ concentrations in ferromagnesian 731 silicates and oxides from microprobe analyses, using stoichiometric criteria. Mineralogical 732 magazine, vol.51, pp.431-435, 1987.

N. Dygert, Y. Liang, C. Sun, and P. Hess, An experimental study of trace element partitioning 734 between augite and Fe-rich basalts, Geochimica et Cosmochimica Acta, vol.132, pp.170-186, 2014.

L. Fedele, A. Zanetti, V. Morra, M. Lustrino, L. Melluso et al., , p.737, 2009.

, Clinopyroxene/liquid trace element partitioning in natural trachyte-trachyphonolite 738 systems: insights from Campi Flegrei (southern Italy), Contrib. Mineral. Petrol, vol.158, issue.3, pp.739-337

G. A. Gaetani, The influence of melt structure on trace element partitioning near the 741 peridotite solidus, Contrib. Mineral. Petrol, vol.147, issue.5, pp.511-527, 2004.

G. A. Gaetani and T. L. Grove, Partitioning of rare earth elements between clinopyroxene and 743 silicate melt crystal-chemical controls, Geochimica et Cosmochimica Acta, vol.59, issue.10, pp.1951-744, 1962.

W. L. Griffin, W. Powell, N. J. Pearson, and O. Sy, GLITTER: data reduction software 746 for laser ablation ICP-MS. Laser Ablation-ICP-MS in the Earth Sciences, vol.40, 2008.

, Mineralogical Association of Canada Short Course Series, pp.204-207

E. Hill, B. J. Wood, and J. D. Blundy, The effect of Ca-Tschermaks component on trace 749 element partitioning between clinopyroxene and silicate melt, Lithos, vol.53, issue.3, pp.25-31, 2000.

E. Hill, J. D. Blundy, . Wood, and . Bj, Clinopyroxene-melt trace element partitioning and the 752 development of a predictive model for HFSE and Sc, Contrib. Mineral. Petrol, vol.161, issue.3, p.438, 2011.

I. Hornig-kjarsgaard, Rare earth elements in sövitic carbonatites and their mineral 755 phases, Journal of Petrology, vol.39, pp.2105-2121, 1998.

F. Huang, C. C. Lundstrom, and W. F. Mcdonough, Effect of melt structure on trace-element 758 partitioning between clinopyroxene and silicic, alkaline, aluminous melts, 2006.

. Mineralogist, , vol.91, pp.1385-1400

J. Keller and M. Krafft, Effusive natrocarbonatite activity of Oldoinyo Lengai, 761 Bulletin of Volcanology, vol.52, pp.629-645, 1988.

C. C. Lundstrom, H. F. Shaw, F. J. Ryerson, D. L. Phinney, J. B. Gill et al., , p.763, 1994.

U. , T. Ba, and P. , Sr and Zr between 764 clinopyroxene and haplobasaltic melts: implications for uranium series disequilibria in 765 basalts, Earth and Planetary Science Letters, vol.128, issue.3-4, pp.407-423

W. F. Mcdonough and S. S. Sun, The composition of the Earth, Chemical geology, vol.120, issue.3-4, pp.767-223, 1995.

M. Masotta, S. Mollo, C. Freda, M. Gaeta, and G. Moore, Clinopyroxene-liquid thermometers 769 and barometers specific to alkaline differentiated magmas, Contributions to Mineralogy 770 and Petrology, vol.166, issue.6, pp.1545-1561, 2013.

M. Marks, R. Halama, T. Wenzel, and G. Markl, Trace element variations in clinopyroxene 772 and amphibole from alkaline to peralkaline syenites and granites: implications for mineral-773 melt trace-element partitioning, Chemical geology, vol.211, issue.3, pp.185-215, 2004.

,

L. H. Martin, M. W. Schmidt, H. B. Mattsson, and D. Guenther, Element partitioning between 776 immiscible carbonatite and silicate melts for dry and H2O-bearing systems at 1-3 GPa, Journal of Petrology, vol.777, issue.11, pp.2301-2338, 2013.

L. T. Michely, F. P. Leitzke, I. M. Speelmanns, and R. Fonseca, Competing effects of crystal 779 chemistry and silicate melt composition on trace element behavior in magmatic systems: 780 insights from crystal/silicate melt partitioning of the REE, HFSE, p.781, 2017.

. Rh, Contributions to Mineralogy and Petrology, vol.172, issue.6, p.39

V. Möller and W. Ae, Petrogenesis of the Nechalacho Layered Suite, Canada: 783 magmatic evolution of a REE-Nb-rich nepheline syenite intrusion, Journal of Petrology, vol.784, issue.2, pp.229-276, 2016.

G. Mollex, E. Füri, P. Burnard, L. Zimmermann, G. Chazot et al., Tracing helium isotope compositions from mantle source to fumaroles at Oldoinyo 787 Lengai volcano, Chemical Geology, vol.786, issue.5, pp.66-74, 2018.

G. Mollex, Architecture de la plomberie du volcan carbonatitique Oldoinyo Lengai: 789 nouvelles contraintes sur la source, les transferts hydrothermaux, et la différenciation 790 magmatique dans la chambre active, 2017.

S. Mollo, K. Putirka, V. Misiti, M. Soligo, and P. Scarlato, A new test for equilibrium based 792 on clinopyroxene-melt pairs: Clues on the solidification temperatures of Etnean alkaline 793 melts at post eruptive conditions, Chemical Geology, vol.352, pp.92-100, 2013.

,

S. Mollo, F. Forni, O. Bachmann, J. D. Blundy, D. Astis et al., Trace element 796 partitioning between clinopyroxene and trachy-phonolitic melts: A case study from the 797 Campanian Ignimbrite, 2016.

, Lithos, vol.252, pp.160-172

,

S. Mollo, J. Blundy, P. Scarlato, D. Cristofaro, S. P. Tecchiato et al.,

O. Bachmann, An integrated P-T-H2O-lattice strain model to quantify the role of 801 clinopyroxene fractionation on REE+ Y and HFSE patterns of mafic alkaline magmas: 802 Application to eruptions at, Mt. Etna. Earth-Science Reviews, vol.185, pp.32-56, 2018.

N. Morimoto, Nomenclature of pyroxenes, Mineralogy and Petrology, vol.39, issue.1, pp.55-76, 1988.

H. Nagasawa, Trace element partition coefficient in ionic crystals, Science, vol.152, issue.3723, pp.805-767, 1966.

P. H. Olin and J. A. Wolff, Rare earth and high field strength element partitioning between 807 iron-rich clinopyroxenes and felsic liquids, Contrib. Mineral. Petrol, vol.160, issue.5, pp.761-775, 2010.

N. Onuma, H. Higuchi, H. Wakita, and H. Nagasawa, Trace element partition between two 810 pyroxenes and the host lava, Earth and Planetary Science Letters, vol.5, pp.47-51, 1968.

E. P. Reguir, A. R. Chakhmouradian, L. Pisiak, N. M. Halden, P. Yang et al., Couëslan 813 CG (2012) Trace-element composition and zoning in clinopyroxene-and amphibole-group 814 minerals: implications for element partitioning and evolution of carbonatites, Lithos, vol.128, pp.815-842

R. D. Shannon, Revised effective ionic radii and systematic studies of interatomic 817 distances in halides and chalcogenides. Acta crystallographica section A: crystal physics, 818 diffraction, theoretical and general crystallography, vol.32, pp.751-767, 1976.

J. H. Vuorinen, U. Hålenius, M. J. Whitehouse, J. Mansfeld, and A. D. Skelton, Compositional 820 variations (major and trace elements) of clinopyroxene and Ti-andradite from pyroxenite, 821 ijolite and nepheline syenite, Alnö Island, Sweden. Lithos, vol.81, issue.1-4, pp.55-77, 2005.

D. Weidendorfer, M. W. Schmidt, and H. B. Mattsson, Fractional crystallization of Si-824 undersaturated alkaline magmas leading to unmixing of carbonatites on Brava Island, p.825, 2016.

, Verde) and a general model of carbonatite genesis in alkaline magma suites, Contrib, vol.826

, Mineral. Petrol, vol.171, issue.5, p.43

B. J. Wood and J. D. Blundy, The effect of cation charge on crystal-melt partitioning of trace 828 elements, Earth and Planetary Science Letters, vol.188, issue.1-2, pp.59-71, 2001.

B. J. Wood and J. D. Blundy, A predictive model for rare earth element partitioning between 830 clinopyroxene and anhydrous silicate melt, Contrib. Mineral. Petrol, vol.129, issue.2-3, pp.166-181, 1997.

B. J. Wood and J. D. Blundy, Trace element partitioning under crustal and uppermost mantle 832 conditions: the influences of ionic radius, cation charge, pressure, and temperature, Treatise on Geochemistry, vol.833, p.568, 2007.

A. B. Woodland and P. J. Jugo, A complex magmatic system beneath the Deves volcanic 835 field, Contributions to 836 Mineralogy and Petrology, vol.153, pp.719-731, 2007.

X. M. Yang, X. Y. Yang, T. H. Chen, P. S. Zhang, K. J. Tao et al., Geochemical characteristics of a carbonatite dyke rich in rare earths from Bayan Obo, vol.839, 2000.

C. Zhang, J. Koepke, L. France, and M. Godard, Felsic Plutonic Rocks from IODP Hole 843 1256D, Eastern Pacific: Implications for the Nature of the Axial Melt Lens at Fast-844 Spreading Mid-Ocean Ridges, Journal of Petrology, vol.58, issue.8, pp.1535-1565, 2017.