E. Anders and N. Grevesse, Abundances of the elements: Meteoritic and solar, Geochimica et Cosmochimica Acta, vol.53, issue.1, pp.197-214, 1989.
DOI : 10.1016/0016-7037(89)90286-X

P. Bayliss and A. A. Levinson, A system of nomenclature for rare-earth mineral species: Revision and extension, 1988.

. D. Botelho, L. M. Reixeira, . Iii-con-gresso, . Brasileiro, and . Geoquímica, aaracterização química de minerais de terras raras e sua aplicação à petrologia dos granitos da província estanífera de eoiás, 1995.

P. E. Caro, Structures lamellaires: Syntaxie, polytypie et non-stoechiom??trie, Journal of Solid State Chemistry, vol.6, issue.3, pp.396-401, 1973.
DOI : 10.1016/0022-4596(73)90229-6

A. R. Chakhmouradian and F. Wall, Rare Earth Elements: Minerals, Mines, Magnets (and More), Elements, vol.8, issue.5, pp.333-340, 2012.
DOI : 10.2113/gselements.8.5.333

A. R. Chakhmouradian and A. N. Zaitsev, Rare Earth Mineralization in Igneous Rocks: Sources and Processes, Elements, vol.8, issue.5, pp.347-353, 2012.
DOI : 10.2113/gselements.8.5.347

P. F. Cordeiro, J. A. Brod, M. Palmieri, C. G. Oliveira, E. S. Barbosa et al., The Catal??o I niobium deposit, central Brazil: Resources, geology and pyrochlore chemistry, Ore Geology Reviews, vol.41, issue.1, pp.41-112, 2011.
DOI : 10.1016/j.oregeorev.2011.06.013

N. Dani, Petrologia das alterações pós-magmáticas e meteóricas das rochas alcalinas de Lages, SC -Brasil, Programa de Pós-graduação em Geociências, 1998.

P. Deines and D. P. Gold, The isotopic composition of carbonatite and kimberlite carbonates and their bearing on the isotopic composition of deep-seated carbon, Geochimica et Cosmochimica Acta, vol.37, issue.7, pp.1707-1733, 1973.
DOI : 10.1016/0016-7037(73)90158-0

G. Donnay and J. D. Donnay, The crystallography of bastnäsite, parasite, röntgenite and synchysite, American Mineralogist, vol.38, pp.932-963, 1953.

H. J. Förster, Synchysite-(Y)-synchysite-(Ce) solid solutions from Markersbach, Erzgebirge, Germany: REE and Th mobility during high-T alteration of highly fractionated aluminous A-type granites, Mineralogy and Petrology, vol.72, issue.4, pp.259-280, 2001.
DOI : 10.1007/s007100170019

J. Kynicky, M. P. Smith, and C. Xu, Diversity of Rare Earth Deposits: The Key Example of China, Elements, vol.8, issue.5, pp.361-367, 2012.
DOI : 10.2113/gselements.8.5.361

F. E. Lapido-loureiro, Terras-Raras no Brasil: Depósitos , Recursos Identificados, Reservas, Ministério da Ciência e Tecnologia, Conselho Nacional de Desenvolvimento aientífico e recnológico, aentro de recnologia Mineral, p.183, 1994.

B. G. Lottermoser, Rare-earth element mineralisation within the Mt. Weld carbonatite laterite, Western Australia, Lithos, vol.24, issue.2, pp.151-167, 1990.
DOI : 10.1016/0024-4937(90)90022-S

B. G. Lottermoser and B. M. England, Variierende Zusammensetzungen in Pyrochlor in Lateriten des Mt Weld Karbonatits, West-Australien, Mineralogy and Petrology, vol.16, issue.no 5, pp.37-51, 1988.
DOI : 10.1007/BF01162480

A. N. Mariano, Economic geology of rare earth minerals, America Reviews in Mineralogy, vol.21, pp.308-338, 1989.

A. N. Mariano, M. Jr, and A. , Rare Earth Mining and Exploration in North America, Elements, vol.8, issue.5, pp.369-376, 2012.
DOI : 10.2113/gselements.8.5.369

E. Menegotto and M. L. Formoso, Alteração Intempérica do Carbonatito da Fazenda Varela ? Região de Lages, Brasil. Geochimica Brasiliensis, vol.12, issue.12, pp.93-112, 1998.

D. Meng, X. Wu, G. Yung, Z. Pan, and D. Li, TEM study of the microstructure in calcium-rare-earth fluorcarbonate minerals, In: CHINA-JAPAN ELECTRON MICROSCOPY SEMINAR, pp.97-102, 1995.

D. Meng, X. Wu, Z. Pan, and G. Yang, HRTEM study of Capc fluorcarbonate mineral series, In: INTERNATIONAL GEOLOGICAL CONGRESS, vol.30, issue.2, p.499, 1996.

D. Meng, X. Wu, Z. Pan, G. Yang, D. Li et al., HR- TEM study of three new regular mixed-layer structures in calcium-rare-earth fluorcarbonates minerals, pp.38-44, 1997.

D. Meng, X. Wu, T. Mou, and D. Li, Determination of six new polytypes in parisite-(Ce) by means of high resolution electron microscopy, Mineralogical Magazine, vol.65, pp.797-806, 2001.

D. Meng, X. Wu, T. Mou, and D. Li, Microstructural investigation of new polytypes of parisite-(Ce) by high-resolution transmission electron microscopy. The Canadian Mineralogist, pp.1713-1724, 2001.

M. C. Metz, D. G. Brookins, P. E. Rosenberg, and R. E. Zartman, Geology and geochemistry of the Snowbird Deposit, Mineral County, Montana, Economic Geology, vol.80, issue.2, pp.394-409, 1985.
DOI : 10.2113/gsecongeo.80.2.394

R. M. Pereira, C. Castro, R. Neumann, and C. A. Ávila, Minerais de metais e elementos raros associados ao Granito Desemborque, São Paulo, Revista Brasileira de Geociências, vol.38, issue.4, pp.591-597, 2008.

M. A. Rocio, M. M. Silva, P. S. Carvalho, and J. G. Cardoso, Terras-raras: situação atual e perspectivas, BNDS Setorial, vol.35, pp.369-420, 2012.

E. Ruberti, G. E. Enrich, C. B. Gomes, and . Comin-chiaramonti, (ydrotermal pcc fluorcarbonate mineralization at Barra do Itapirapuã, a multiple stockwork carbonatito, southern Brazil. The Canadian Mineralogist, pp.901-914

V. B. Savel-'eva and N. S. Karmanov, REE minerals of alcaline metasomatic rocks in the Main Sayan Fault, Zapiski Rossiiskogo Mineralogicheskogo Obshchestva, vol.2, pp.14-36, 2008.

L. F. Scheibe, Estudo petrológico e geoquímico dos carbonatitos da Fazenda Varela, SC. Porto Alegre, 120p, Dissertação de Mestrado, Programa de Pós-graduação em Geociências, 1979.

L. F. Scheibe, L. F. Scheibe, and M. L. Formoso, Geologia e petrologia do distrito alcalino de Lages, SC. São Paulo, 224p, Tese de Doutorado Contribuição da geoquímica das terras raras à caracterização dos carbonatitos da Fazenda Varela, pp.553-561, 1982.

L. F. Scheibe, K. Kawashita, C. B. Gomes, . Simpósio-sul-brasileiro, and . De-geologia, Contribuição à geocronologia do Complexo Alcalino de Lages, SC, pp.299-307, 1985.

R. F. Service, Nations Move to Head Off Shortages of Rare Earths, Science, vol.327, issue.5973, pp.1596-1597, 2010.
DOI : 10.1126/science.327.5973.1596

R. Stone, As China's Rare Earth R&D Becomes Ever More Rarefied, Others Tremble, Science, vol.325, issue.5946, pp.1336-1337, 2009.
DOI : 10.1126/science.325_1336

H. P. Taylor, J. Frechen, and E. T. Degens, Oxygen and carbon isotope studies of carbonatites from the Laacher See District, West Germany and the Aln?? District, Sweden, Geochimica et Cosmochimica Acta, vol.31, issue.3, pp.407-430, 1967.
DOI : 10.1016/0016-7037(67)90051-8

J. Van-landuyt and S. Amelincx, Multiple beam direct lattice imaging of new mixed-layers compounds os bastnaesite-synchysite series, American Mineralogist, vol.60, issue.403, pp.351-295, 1975.

L. Wang, Y. Ni, J. M. Hughes, P. Bayliss, and J. W. Drexler, The atomic arrangement of synchysite-(Ce), CeCaF(CO 3 ) 2 , Locality: Mont Saint-Hilaire, The Canadian Mineralogist, vol.32, pp.865-871, 1994.

A. E. Williams-jones, A. A. Migdisov, and I. M. Samson, Hydrothermal Mobilisation of the Rare Earth Elements - a Tale of "Ceria" and "Yttria", Elements, vol.8, issue.5, pp.355-360, 2012.
DOI : 10.2113/gselements.8.5.355

A. R. Woolley and D. R. Kempe, -Carbonatites: nomenclature , average chemical compositions, and element distribution). Carbonatites ? Genesis and Evolution, pp.1-14, 1989.
URL : https://hal.archives-ouvertes.fr/hal-00136803

X. Wu, D. Meng, Z. Pan, G. Yang, and D. Li, Transmission electron microscopic study of new, regular, mixed-layer structures in calcium-rare-earth fluorcarbonate minerals, Mineralogical Magazine, vol.62, pp.55-64, 1998.

X. Wu, D. Meng, G. Yang, Z. Pan, D. Li et al., Syntactic intergrowth structure in the calcium-rare-earth fluorcarbonate minerals, pp.198-203, 1998.

X. Wu, D. Meng, J. Liang, and Z. Pan, Ordered-disordered stacking structure along the c-/axis in calcium rare-earth fluorcarbonate minerals, In: INTERNATIONAL GEOLOGI- CAL CONGRESS, vol.30, issue.16, pp.49-57, 1997.

X. Wu, D. Meng, T. Mou, and Z. Pan, Domain structure in calcium-rare-earth fluorcarbonate minerals, Mianning County, pp.144-147, 2000.