Source: http://www.get.obs-mip.fr/profils/Salvi_Stefano
Timestamp: 2019-04-19 05:53:20+00:00

Document:
Permanent CNRS research scientist: GET, Toulouse.
Hydrothermal Ore Deposits, Rare Metals, Fluid Inclusions, Peralkaline Rocks, Geochemistry.
My research is devoted mainly to understanding the formation of hydrothermal ore deposits. In particular, I have investigated rare-metal bearing alkaline rocks, orogenic gold deposits, pegmatites, porphyry deposits, and gems. I have worked mostly on sites in North America, West Africa, Morocco, and Madagascar.
For the past three years I have been part of the West African Exploration Initiative (WAXI), a research and training program financed by the international mining industry under the coordination by Amira International. The project focuses on the mineral potential of the West African craton, with a particular emphasis on gold mineralization in greenstone belts.
Director of Ore Deposits Team.
Munoz, M., Baron, S., Boucher, A., Beziat, D., Salvi, S. (2015) Mesozoic vein-type Pb–Zn mineralization in the Pyrenees: Lead isotopic and fluid inclusion evidence from the Les Argentieres and Lacore deposits. C. R. Geoscience, http:// dx.doi.org/10.1016/j.crte.2015.07.001.
Baratoux, L., Metelka, V., Siebenaller, L., Naba, S., Naré, A., Ouiya, P., Jessell, M.W., Béziat, D., Salvi, S., Franceschi, G., 2015. Tectonic evolution of the Gaoua region: implications for the mineralization. Journal of African Earth Sciences, WAXI special volume, in press. (10.1016/j.jafrearsci.2015.10.004).
Amponsah, P.O., Salvi, S., Beziat, D., Jessell, M.W., Siebenaller, L., Baratoux, L., (in press). Geology and geochemistry of the shear-hosted Julie deposit, NW Ghana. J. Afr. Earth Sci. http://dx.doi.org/10.1016/j.afrearsci.2015.06, 013).
Estrade G., Salvi S., Béziat D., Willams-Jones, A.E. (2015) Rare-metal mineralization in a peralkaline granite related skarn, Ambohimirahavavy alkaline complex, Madagascar, Economic Geology, v. 110, pp. 1485–1513.
Sangaré A., Driouch, Y., Salvi S., Féménias O., Siebenaller L., Belkasmi M., Béziat D., Dahire M., Ntarmouchant A., Adil S., Debat P. (2014) Environnement géologique des minéralisations aurifères du gisement tardi-éburnéen de Kalana (Birimien, Sud-Ouest du Mali). Bulletin de l’Institut Scientifique, Section Sciences de la Terre, 36 (page # to be assigned, in press).
Lagraa, K., Béziat, D. Debat, P., Salvi S., Kolli, O. (2014) Le pluton Paleoproterozoique de la structure circulaire de Bled m’Dena (Eglab, SW Algérien) : Pétrographie et géochimie. Bulletin du Service Géologique National - Algérie, v. 25 n° 2, p. 127-131.
Estrade G., Béziat D., Salvi S., Tiepolo, M., Paquette, J-L., Rakotovao, S. (2014) Unusual evolution of silica-under- and -oversaturated alkaline rocks in the Cenozoic Ambohimirahavavy Complex (Madagascar): Mineralogical and geochemical evidence. Lithos v. 206-207, p. 361-383.
Velásquez G., Béziat, D., Salvi S., Siebenaller, L., Borisova A.Y., Pokrovski G.S., de Parseval, P. (2014) Formation and Deformation of Pyrite and Implications for Gold Mineralization in the El Callao District, Venezuela Economic Geology, 109, 457-486.
Borisova, A.Y., Toutain, J-P., Dubessy, J., Pallister, J., and Salvi, S. (2014) CO2-SO2 fluid triggering the 1991 mount Pinatubo climactic eruption. Bulletin of Volcanology, v. 76, 2, p. 1-9.
Rasoamalala, V.Salvi, S., Béziat, D., Ursule, J.P., Cuney, M., de Parseval, Ph., Moine, B., Guillaume, D. (2014) Geological setting of the bastnaesite and monazite deposits in the Ambatofinandrahana area, central part of Madagascar: an overview. Journal of African Earth Sciences. v. 94 p. 128-140.
Estrade G., Salvi S., Béziat D., Rakotovao, S. Rakotondrazafy R. (2014) HFSE mineralization in peralkaline granites of the Ambohimirahavavy alkaline complex, Ampasindava peninsula, Madagascar. Journal of African Earth Sciences. v. 94, p. 141-155.
Potter, J. Salvi, S., Longstaffe, F. (2013). Abiogenic hydrocarbon isotopic signatures in granitic rocks: Identifying pathways of formation. Lithos, 182-183, 114-124.
Velásquez G., Borisova A.Y., Salvi S., Béziat, D. (2012). In situ Au and Cu microanalysis in natural pyrite by near-infrared femtosecond laser ablation (fs-LA) inductively coupled plasma quadrupole mass spectrometry (ICP-QMS): Implication for non matrix-dependent behaviour. Geostandards and Geoanalytical Research, v. 36, 3, p. 315-324.
Borisova, A.Y., R. Thomas, S. Salvi, F. Candaudap, A. Lanzanova, J. Chmeleff. (2012). Tin and associated metal and metalloid geochemistry by femtosecond LA-ICP-QMS microanalysis of pegmatite– leucogranite melt and fluid inclusions: new evidence for melt–melt–fluid immiscibility. Mineralogical Magazine, 76 (1), pp. 91-113.
Migdisov, A.A., Williams-Jones, A.E., van Hinsberg and Salvi, S. (2011) An experimental study of the solubility of baddeleyite (ZrO2) in fluoride-bearing solutions at elevated temperature. Geochim. Cosmochim. Acta. 75, 7426-7434.
Velásquez G., Béziat D., Salvi S., Tosiani T., Debat P. (2011) First occurrence of Paleoproterozoic oceanic plateau in the Guiana Shield: the gold-bearing El Callao Formation, Venezuela. Precambrian Research, v. 186, p. 181-192.
Andrianjakavah, P., Salvi, S., D. Beziat, M. Rakotondrazafy and G. Giuliani (2009) Two styles of emerald mineralization in the Ianapera deposit, Madagascar. Mineralium Deposita, v.44, p. 817-835.
Rakotovao S., Rakotondrazafy R., Béziat D., Salvi S, Rasolomanana E. (2009) Pétrologie du complexe alcalin Cénozoïque d'Ambohimirahavavy, presqu'ile d'Ampasindava, Nord-Ouest de Madagascar. MadaGéo, Journal des Sciences de la Terre, ISSN 2074-4587, v. 13, p. 2 - 19.
Borisova A.Y., Freydier R., Polvé M., Salvi S., Aigouy T. (2008) In-situ multi-elemental analysis of silicate melt inclusions by NIR femtosecond laser ablation – inductively coupled plasma – mass spectrometry.Geostandards and Geoanalytical Researchv. 32, p. 209-229.
Van Lichtervelde M., Gregoir M., Linnen R., Béziat D., Salvi, S., (2008) Trace element geochemistry by laser ablation ICP-MS of micas associated with Ta mineralization in the Tanco pegmatite, Manitoba, Canada.Contributions to Mineralogy and Petrology, v. 155, p. 791-806.
Béziat D., Dubois M., Debat P., Nikiema S., Salvi S., Tollon F. (2008) Gold metallogeny in the Birimian craton of Burkina Faso (West Africa)Journal of African Earth Sciences, v. 50, p. 215–233.
Van Lichtervelde, M.,Salvi, S., Béziat, D., Linnen, R. (2007). Textural features and chemical evolution in tantalum oxides: Magmatic versus hydrothermal origins for Ta mineralization in the Tanco Lower Pegmatite, Manitoba, Canada.Economic Geology, v 102, p. 257-276.
Andrianjakavah, P.,Salvi, S., Beziat, D., Guillaume D., Rakotondrazafy, M., Moine, B. (2007). The Banded-Iron-Formation hosted gold deposits at Maevatanana (Madagascar): a fluid inclusion investigation.Mineralium Deposita. v. 42 p. 385-398.
Salvi, S. & Williams-Jones A.E. (2006) Alteration, HFSE mineralisation and hydrocarbon formation in peralkaline igneous systems: Insights from the Strange Lake Pluton, Canada.Lithos,v. 91, p. 19-34 (invited paper).
Van Lichtervelde, M.,Linnen, R., Salvi, S., Beziat, D. (2006). Evaluating the role of metagabbro rafts on tantalum mineralisation in the Tanco pegmatite, Manitoba.Canadian Mineralogist,44, 625-644.
Martin, F.,Ferrage, E.,Petit, S., de Parseval, P., Delmotte, P., Ferret, J., Arseguel, D., Salvi, S. (2006) Fine-probing the crystal-chemistry of talc by MAS NMR spectroscopy.European Journal of Mineralogy, v. 18 p 641-651.
Tagirov, B. Salvi, S. & Schott, J. (2005): Experimental study of gold-hydrosulphide complexing in aqueous solution at 350-500°C, 500 and 1000 bars using mineral buffers. Geochimica et Cosmochimica Acta., vol. 69, p. 2119-2132.
Debat, P, Nikiéma, S., Mercier, A., Lompo, M., Beziat, D., Bourges, F., Roddaz, M., Salvi, S., Tollon, F. Wenmenga, U. (2003):Significance of staurolite-kyanite assemblages in paleoproterozoic formations of the Man Shield (Aribinda and Tampelga countries, Burkina Faso, West Africa).Precambrian Research Vol. 123, 47-65.
Ferrage, E.,Martin, F., Petit, S., Pejo-soucaille, S., Micoud, P., Fourty, G., Ferret, J., Salvi, S., de Parseval, P. Fortune, J.P. (2003): Evaluation of talc morphology using: FTIR and H/D substitution.Clay MineralsVol. 38, 141-150.
Tagirov, B, Schott, J., Harrichourry, J.-C., & Salvi, S. (2002):Experimental study of aluminum speciation in chloride and fluoride-rich supercritical fluids.Geochimica et Cosmochimica ActaVol. 66, p. 2013-2024.
Ferrage, E.,F. Martin, A. Boudet, S. Petit, G. Fourty, F. Jouffret, P. Micoud, P. De Parseval, S. Salvi, C. Bourgerette, J. Ferret, Y. Saint-Gerard, S. Buratto, J. P. Fortune (2002): Talc as nucleating agent of polypropylene: morphology induced by lamellar particles addition and interface mineral-matrix modelization.Journal of Materials Science, Vol. 37(8), p. 1561-1573.
Salvi, S., Tagirov, B. & Moine, B. (2001): Hydrothermal mineralization of Zr and other "immobile elements": field evidence and experimental constraints. In:Water-Rock Interaction. R. Cidu (ed). Balkema. Vol. 1, p. 745-748.
Salvi, S. & Williams-Jones, A.E. (1995): Hydrothermal HFSE mineralization at Strange Lake, Canada.In:Mineral Deposits: from their Origin to their Environmental Impacts.Pasava, Kríbec & Zák (eds.). Balkema, Rotterdam, p. 515-518.
Salvi, S. & Williams-Jones, A.E. (1993): Zirconosilicate phase relations in the Strange Lake pluton, Québec-Labrador, Canada.In:Current Research in Geology Applied to Ore Deposits. Fenoll Hach-Alí, Torres-Ruiz & Gervilla (eds.). ISBN 84-338-1772-8, p. 661-664.
Baratoux, L, Jessell, M., Naba, S., Kagambega, N., Salvi, S., Passchier, C. (2009) Field Guide to the Houndé-Gaoua Area, Burkina Faso. AMIRA P934 Houndé-Gaoua, Burkina Faso Field Guide. 111 p.
Diversity of styles and origin of gold mineralization. Case studies from Africa, South America, Canada.
Mineralization of critical metals in alkaline igneous systems, and transport of these rare elements in hydrothermal fluids.
LA-ICP-MS analysis of fluid inclusions: comparison of different systems and development of small-dead volume cell.
Professional Master Program: Hydrothermal Ore Deposits and Techniques in Ore Deposit Studies.

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