..      Jean-Emmanuel MARTELAT..

Domaines de Compétences

- Caractérisation des structures géométriques par imagerie satellitale complétée par l'étude des trajectoires de déformation, des observations et des mesures de terrain.

- Caractérisation des microstructures et des mécanismes de déformation des roches. Identification des phases, des "melts" et de leur géométrie par: analyse d'images obtenues au microscope électronique à balayage; analyse statistique des grains et des limites de grains (POLYLX d'Ondrej Lexa), interprétation des microfabriques (EBSD).

- Caractérisation des conditions physiques (pression-température) du métamorphisme. 

- Caractérisation des âges du métamorphisme par datation laser-ICPMS sur zircons et monazites en position pétrographique sur lame mince.

Cursus Universitaire                                     

-2001-2010: Maître de conférences à l'Université Joseph Fourier, Grenoble.

-1999-01 : Chercheur post-doctoral à l'Université de Montréal, Québec.

-1999 : Chercheur associé à l'Université Albertov de Prague (5 mois).

-1997-99 : Successivement attaché temporaire d'enseignement et de recherche à l'UCB Lyon I et à l'ULP Strasbourg I.

-1993-97 : Thèse de doctorat: "Evolution thermomécanique de la croûte inférieure", soutenue le 5 juin 1998, réalisée aux laboratoires de Sciences de la Terre de l'UBP Clermont Ferrand II, de l'ENS Lyon et de l'UCB Lyon I. (interruption de 10 mois afin d'effectuer le service national).

-1992-93 : DEA "Processus magmatiques et métamorphiques - volcanologie", UBP Clermont-Ferrand II.

-1990-92 : 1^ère année et 2^ème année de Magistère des Sciences de la Terre (Rhône-Alpes Auvergne, promotion de 1990).

-1988-90 : DEUG B, Sciences de la Vie et de la Nature option Géologie et Ressources Minérales, UCB Lyon I.

Activités d'Enseignement 

    Aujourd'hui j'enseigne à l'Université Claude Bernard Lyon I où il y existe 2 parcours L3 Sciences Terre (L3 professionnalisante Méthodes Appliquées en Géosciences  L3 Sciences Terre).

    J'ai été 9 ans maître de conférences à l'Université Joseph Fourier de Grenoble, 3 ans moniteur à l'Université Jean-Monnet S^t Etienne (sa L3 professionnelle Géomatériaux-Environnement) , 1 an ATER à l'Université Claude Bernard Lyon I et 1 an ATER à l'Université Louis Pasteur Strasbourg I. 

    Encadrement et collaboration avec différents étudiants : Emilie Beaudon, Julien Hélou, Eglantine Boulard, Brice Randrianasolo, Morgane Ludevin, Sophie Beauprètre, Karim Malamoud, Benoit Quesnel, Nicolas Riel, Mélissa Martinot, Thibault Chamel, Gabrielle Varieras, Masci Lorella, Samuel Barbier, Axel Temperville, Diallo Mamadou Lamarana, Erwan Bras, Jean-Baptiste Jacob, Valentine Puzenat, Herbert Pretot Evan, Messy Antonin

Activités de Recherche

    Mon travail de recherche a pour objectif de caractériser, de manière qualitative et quantitative, à partir d'objets naturels, les transferts de matière au travers de la lithosphère (transfert de masse solide, liquide magmatique ou volatil). Pour cela je caractérise le cadre géométrique des transferts à différentes échelles, depuis l’échelle régionale (103-1 km ; imagerie satellitaire) jusqu’à l’échelle de l’échantillon (cm, mm et nm – microscopies haute résolution). J’intègre ensuite des données variées dans ce cadre préétabli en collaborant alors avec des géophysiciens, des géochimistes, des métallogénistes, des microbiologistes et des planétologues (Pili et al., 1997, Novel et al., 2006, Feneyrol et al., 2012, Martelat et al., 2019 Marine Geology). Ils m’apportent en retour des contraintes sur les processus de transfert que j’étudie.

    La caractérisation des lithologies et des géométries présente des intérêts divers un des plus explicite est le contrôle structural des minéralisations d'intérêt économique. Ces minéralisations ont un impact sociétal énorme: Géopolitique locale (les ruées et l'insécurité, voire des conflits entre pays limitrophes ), la pollution (liée soit à des concentrations naturelle,  soit à l’exploitation).

Responsabilités collectives

    J'assure régulièrement diverses responsabilités collectives, des moins "glorieuses" resp. CR102D Grenoble (le budget L1-2), aux responsabilités pédagogiques resp. d'UE, de parcours...J'ai été membre de commissions de spécialistes (notamment la mixte 35-36-37^ème sections, membre du bureau en tant qu'assesseur) de l'Université Joseph Fourier..., et maintenant de CS. Et surtout un truc qui pourra aider la constitution de vos dossiers de Maître de Conférences...le rapport type que nous utilisions en CS (la plupart du temps il ne fait pas plus d'une page).

Travaux, ouvrages, articles, réalisations

Thèse 1998 Évolution Thermomécanique de la croûte inférieure du Sud de Madagascar Univ. Clermont-Ferrand

Publications researchgate IdHAL ORCID

(35) Bauer,  S.M. Lu G.-S., Goulaouic S., Puzenat, V., Schouw, A., Barreyre, T., Pawlowski-Glahn, V., Egozcue, J.J. Martelat, J.-E., Escartin, J., Amend, J.P., Nomikou, P., Vlasopoulos, O. Polymenakou, P., Jørgensen, S.-L. 2023. Structure and metabolic potential of the prokaryotic communities from the hydrothermal system of Paleochori Bay, Milos, Greece Frontiers in Microbiology. doi.org/10.3389/fmicb.2022.1060168 open access and supp material nice SEM images!

(34) Gardien, V., Martelat, J.-E., Leloup, H.-P., Mahéo G., Bevillard B., Allemand, P., Patrick M., Paquette J.-L., Grosjean A.-S., Faure, M., Chelle-Michou, C., Fellah, C. 2021. Fast exhumation rate during late orogenic extension: the new timing of the Pilat detachment fault (French Massif Central). Gondwana Research. doi.org/10.1016/j.gr.2021.10.007

(33) Métois, M.,  Martelat, J.-E., Billant, J., Andréani M., Escartín J., Leclerc F., and the ICAP service. 2021. Deep oceanic submarine fieldwork with undergraduate students, an exceptional immersive experience (Minerve  software). Special Issue: Virtual geoscience education resources (SE/GC inter-journal SI). https://se.copernicus.org/preprints/se-2021-89/

(32) Puzenat, V., Escartin, J., Martelat, J.-E., Barreyre, T., Le Moine Bauer, Nomikou, P., S., Gracias, N., Allemand, P., Antoniou, V., Coskun, O., Garcia, R., Grandjean, P., Jørgensen, S.-L., Magí L., Mandalakis, M., Orsi W., Polymenakou P., Schouw A., Vallicrosa, G., Vlasopoulos, O.  2021. Shallow-water hydrothermalism at Milos (Greece): Nature, distribution, heat fluxes and impact on ecosystems. Marine Geology. 438, 106521, https://doi.org/10.1016/j.margeo.2021.106521

(31) Aguilar, C., Štípská, P., Chopin, F., Schulmann, K., Pitra, P., Závada, P., Hasalová, P., and Martelat, J.- E. 2020. Syn‑deformational melt percolation through a high‑pressure orthogneiss and the exhumation of a subducted continental wedge (Orlica‑Śnieżnik Dome, NE Bohemian Massif). International Journal of Earth Sciences. 109, 1213–1246 doi.org/10.1007/s00531-020-01838-4 Abst

(30) Martelat, J.-E., Cardon, H., Schulmann, K., Lardeaux, J-M., Nicollet, C., and Pili, E. 2020. Geophysical evidences for large‑scale mullion‑type structures at the mantle–crust interface in southern Madagascar: implications for Neoproterozoic orogeny. International Journal of Earth Sciences. 109, 1487–1500 Abst

(29) Martelat, J.-E., Escartin, and J., Barreyre, T. 2020. Terrestrial shallow water hydrothermal outflow characterized from out of space. Marine Geology. 422, 106119 doi.org/10.1016/j.margeo.2020.106119 Abst

(28) Jacob, J.-B., Martelat J.-E., Goncalves P., Giuliani G., Devidal, J.-L., Feneyrol, J., Omito E., Ichang'I D. 2018. New P-T-X conditions for the formation of gem tsavorite garnet in the Voi area (southwestern Kenya). Lithos. 320-21, 250-264 doi.org/10.1016/j.lithos.2018.09.010 Abst

(27)  Riel, N., Jaillard, E., Martelat, J.E., Guillot, S.,  and Braun, J. 2017. Permian-Triassic Tethyan realm reorganisation: implications for the outward Pangea margin. Journal of South American Earth Sciences. 81, 78-86  Abst

(26) Martelat J.-E., Paquette J.-L. Bosse V., Giuliani G., Monié P., Omito E., Simonet C. Ohnenstetter D., Ichang'I D., Nyamai C., and Wamunyu A., 2017. Chronological constraints on Tsavorite mineralizations and related metamorphic episodes in S.E. Kenya. Canadian Mineralogist, 55, 845-865; doi:10.3749/canmin.1700019 Abst

(25) Feneyrol, J., Giuliani, G., Demaiffe D., Ohnenstetter, D., Fallick A. E., Dubessy, J., Martelat, J.-E., Rakotondrazafy, A.F.M., Omito, E., Ichang'I, D., Nyamai, C., and Wamunyu, A. 2017. Age and origin of the parental fluids of tsavorite and tanzanite in the neoproterozoic mozambique  metamorphic belt. Canadian Mineralogist, 55:763-786; doi:10.3749/canmin.1600085 Abst

(24)  Giuliani1, G.,  Dubessy J., Ohnenstetter, D., Banks, D., Branquet, Y.,  Feneyrol, J., Fallick, A.E., and Martelat, J.-E. 2017. The role of evaporites in the formation of gems during metamorphism of carbonate platforms: a review. Mineralium Deposita. INVITED PAPER. DOI 10.1007/s00126-017-0738-4, Abst

(23)  Skrzypek, E., Bosse, V., Kawakami, T., Martelat, J.-E., and Štípská P.  2017. Transient allanite replacement and prograde to retrograde monazite (re)crystallization in medium-grade metasedimentary rocks from the Orlica-Snieznik Dome (Czech Republic/Poland): Textural and geochronological arguments
Chemical Geology. 449, 41-57, Abst

(22)  Riel, N., Martelat, J.E., Guillot, S., Jaillard, E., Monié, P., Yuquilema, J. Duclaux, G., Mercier, J. 2014. Forearc tectono-thermal evolution of the El Oro metamorphic province (Ecuador) during the Mesozoic. Tectonics. 33, 1989-2012. Abst & cover

(21) Giuliani G., Feneyrol J., Ohnenstetter D., Marshall D., Walton L., Martelat J.E., Fallick A.E. 2014. Tsavorite and Tanzanite Deposits. Mineralogical Association of Canada Short Course 44, 217-246

(20) Martelat, J.E., Randrianasolo B., Schulmann K., Lardeaux J.M., Devidal J.L. 2014. Airborne magnetic data compared to petrology of crustal scale shear zones from southern Madagascar: a tool for deciphering magma and fluid transfer in orogenic crust. Journal of African Earth Sciences, Special Issue: Geology and Metallogeny of the Precambrian Basement of Madagascar. 94, 94-85. Abst

(19) Riel, N., Guillot, S., Jaillard, E., Martelat, J.E., Paquette, J.L., Schwartz, S., Goncalves, P., Duclaux, G., Thebaud, N., Lanari, P., Janots, E., Yuquilema, J. 2013. Metamorphic and geochronogical study of the Triassic El Oro metamorphic complex, Ecuador: implications for high–temperature metamorphism in a forearc zone. Lithos, 156-159, 41-68. Abst

(18) Feneyrol J., Giuliani G., Ohnenstetter D., Fallick A.E., Martelat J.E., Monié P., Dubessy J., Rollion-Bard C., Le Goff E., Malisa E., Rakotondrazafy A.F.M., Pardieu V., Kahn T., Ichang'i D., Venance E., Voarintsoa N.R., Ranatsenho M., Simonet C., Omito E., Nyamai C., Saul M. 2013. New aspects and perspectives on tsavorite deposits. Ore Geology Reviews, 53, 1-25, Abst

(17) Martelat J.E., Malamoud K., Cordier P., Randrianasolo B., Schulmann K., Lardeaux J.M. 2012. Garnet crystal plasticity in the continental crust, new example from south Madagascar. Journal of Metamorphic Geology, 30, 435-452. doi:10.1111/j.1525-1314.2012.00974.x Abst

(16) Chopin, F., Schulmann, K., Štípská, P., Martelat, J.E., Pitra., P., Lexa, O., Pétri, B., 2012. Microstructural and metamorphic evolution of a high pressure granitic orthogneiss during continental subduction (Orlica−Śnieżnik dome, Bohemian Massif). Journal of Metamorphic Geology, 30, 347-376. doi:10.1111/j.1525-1314.2011.00970.x Abst

(15) Chopin, F., Schulmann, K., Skrzypek, E., Lehmann, J., Dujardin, J.R., Martelat, J.E., Lexa, O Corsini, M., Edel, J.B., Štípská, P., Pitra., P. 2012. Crustal influx, indentation, ductile thinning and gravity redistribution in a continental wedge: building a Moldanubian mantled gneiss dome with Saxothuringian material (European Variscan belt). Tectonics, 31, 27 pp. doi:10.1029/2011TC002951 Abst

(14)- Štípská, P., Chopin, F., Skrzypek, E., Schulmann, K., Pitra, P., Lexa, O., Martelat, J.E., Bollinger, C., Žáčková. E. 2012. The juxtaposition of eclogite and mid-crustal rocks in the Orlica–Śnieżnik Dome, Bohemian Massif. Journal of Metamorphic Geology. 30, 213-234. doi:10.1111/j.1525-1314.2011.00964.x. Abst

(13)- Amórtegui A., Jaillard E., Lapierre H., Bosh D., Martelat J.E., Bussy, F. 2011. Petrography and geochemistry of accreted oceanic fragments below the western cordillera of Ecuador. Geochemical Journal. 45, 57-78. Abst

(12)- Schulmann K., Martelat J.E., Ulrich S., Lexa O., Štípská P., Jens K. Becker. 2008. Evolution of microstructure and melt topology in partially molten granitic mylonite: implications for rheology of felsic middle crust. Journal of Geophysical Research. 113, B10406, doi:10.1029/2007JB005508 Abst

(11)- Nouvel J.-F., Martelat J.E., Herique A., Kofman W. 2006. Top layers charaterization of the Martian surface: Permittivity estimation based on geomorphology analysis. Planetary and Space Science. 54, 337-344. Abst

(10)- Martignole J., Martelat J.E. 2005. Mafic dykes as monitors of hp granulite facies metamorphism in the Grenville front tectonic zone (western Quebec). Precambrian Research. 138, 183-207. Abst

(9)- Beaudon E., Martelat J.E., Lapierre H.,Jaillard E. 2005. Métabasites de la Cordillère Occidentale d’Équateur: témoins d’une racine océanique sous les Andes d’Équateur. Comptes Rendus Geoscience. 337, 625-634. Abst

(8)- Martignole J., Martelat J.E. 2003. Regional-scale Grenvillian-age UHT metamorphism in the Mollendo-Camana block (basement of the Peruvian Andes). Journal of Metamorphic Geology. 21, 99-120. Abst

(7)- Martelat J.E., Lardeaux J.M., Nicollet C., Rakotondrazafy R. 2000. Strain pattern and history of the southern Madagascar. Precambrian Research. 102, 1-20. Abst

(6)- Martelat J.E., Schulmann K., Lardeaux J.M., Nicollet C. 1999. Granulite microfabric and deformation mechanisms in southern Madagascar. Journal of Structural Geology. 21, 671-687. Abst

(5)- Lardeaux J.M., Martelat J.E., Nicollet C., Pili E., Rakotondrazafy R., Cardon H. 1999. Metamorphism and tectonic in southern Madagascar : an overview. Gondwana Research. 2, 355-362. Abst

(4)- Martelat J.E., Lardeaux J.M., Nicollet C. and Rakotondrazafy R. 1999. Exhumation of granulites within a transpressive regime: an example from southern Madagascar. Gondwana Research. 2, 363-367. https://doi.org/10.1016/S1342-937X(05)70275-6 Abst

(3)- Pili E., Sheppard S.M.F., Lardeaux J.M., Martelat J.E., Nicollet C. 1997. Fluid flow versus scale of shear zones in the lower continental crust and the granulite paradox. Geology. 25, 15-18.  Abst

(2)- Martelat J.E., Nicollet C., Lardeaux J.M., Vidal G., Rakotondrazafy R. 1997. Lithospheric tectonic structures developed under high-grade metamorphism in the southern part of Madagascar. Geodinamica Acta. 10, 94-114. Abst cover

(1)- Martelat J.E., Vidal. G., Lardeaux J.M., Nicollet C., Rakotondrazafy R. 1995. Images spatiales et tectonique profonde des continents : l'exemple du Sud-Ouest de Madagascar. Comptes Rendus à l'Académie des Sciences Paris. BnF Gallica 321, série II a, 325-332.

Communications dans des Colloques Nationaux et Internationaux

(65) Rarivoarison, H. N., Hasalová, P., Andriamamonjy, A. S., Miha, T., Štípská, P., Závada, P., Martelat, J.-E., and Schulmann, K. 2024.Tectono-metamorphic evolution and crustal-scale shear zone origin in the high-grade crust of southern Madagascar, EGU24-10343

(64) Martelat, J.-E., Giuliani G., Jacob, J.-B, Goncalves P., Feneyrol, J., Devidal, J.-L., Omito E., Ichang'I D. 2022. Tsavorite growth in strain-preserved sedimantary structures (southern Kenya). Abst . IMA 2022 Lyon

(63) Martelat, J.-E., Escartin, J., Barreyre, T., Gracias, N., Vallicrosa, G., Garcia, R., Magí, L., Nomikou, P., Puzenat, V., Grandjean, P., Allemand, P., Schouw, A., Le Moine Bauer,  S., Jørgensen, S.-L., Antoniou, V., Vlasopoulos, O., Polymenakou, P., Mandalakis, M., Coskun, O. and Orsi W. 2022. Mapping and monitoring of regional shallow submarine hydrothermal system. Teaser & Poster. Cities On volcanoes 11. teaser Poster

(62) Martelat, J.-E., Billant, J., Métois, M.,  Andréani M., Escartín J., Leclerc, F. & l’équipe iCAP. 2021. Travaux pratiques sur une faille à 1200 m sous la mer. Faille du Roseau à l’origine du séisme des Saintes de 2004 (Petites Antilles).

(61) Martelat, J.-E., Billant, J., Métois, M.,  Andréani M., Escartín J., Leclerc, F. & l’équipe iCAP. 2021. Travaux pratiques sur une faille à 1200 m sous la mer. Le cas de l'étude de la faille du Roseau tremblement de terre « les Saintes » Petites Antilles (Logiciel « Minerve »). Enseigner les Géosciences dans un environnement numérique. 27ème RST Poster

(60) Martelat, J.-E., Billant, J., Métois, M.,  Andréani M., Escartín J., Leclerc, F. & l’équipe iCAP. 2021. Submarine fieldwork with L3 students using the Minerv virtual reality software. 4th Virtual Geoscience Conference 2021). Talk 14min

(59) Métois, M., Martelat, J.-E., Quantin-Nataf, C., Perrillat J.-P., Gardien, V., Reboulet, S., Passot, S., Grandjean P., Allemand, P., Triantafyllou, A., l’équipe iCAP. 2021. Virtual fieldwork for undergraduate students in Geosciences : report from educational attempts in Univ. Lyon 1. 4th Virtual Geoscience Conference

(58)-Aguilar, C., Štípská, P., Chopin, F., Schulmann, K., Pitra, P., Závada, P., Hasalová, P., and Martelat, J.- E. 2021. Syn-deformational melt percolation through a high-pressure orthogneiss and the exhumation of a subducted continental wedge (Orlica‑Śnieżnik Dome, NE Bohemian Massif). EGU21-2251

(57)- Escartin, J., Hughes, A., Martelat, J.-E., Puzenat, V., Barreyre, T., Nomikou, P., Delescluse, M., Jouve, G., Bouchard, A., Stephan, R., Alain, P. Grandjean, P., Allemand, P. 2021. Tectonic constraints on submarine hydrothermal activity, degassing, and subseafloor gas storage (Milos Shallow Water Hydrothermal System, Greece). EGU21-12597

(56)- Puzenat, V., Escartin, J., Martelat, J.-E., Barreyre, T., Le Moine Bauer,  S., Gracias, N., Nomikou, P., Grandjean, P., Schouw, A., Polymenakou, P., Allemand, P., 2020. Shallow water hydrothermal systems: Constraints on distribution, nature, and heat fluxes of outflow from Milos (Greece). AGU OS037-0008 -Poster 

(55)- Puzenat, V., Martelat, J.-E., Escartin, J., Barreyre, T., Gracias, N., Vallicrosa, G., Garcia, R., Magí, L., Nomikou, P., Grandjean, P., Allemand, P., Schouw, A., Le Moine Bauer,  S., Jørgensen, S.-L., Antoniou, V., Vlasopoulos, O., Polymenakou, P., Mandalakis, M., Coskun, O. and Orsi. W. 2020. Integrated regional scale view of Milos submarine hydrothermalism. EGU2020-9144 https://doi.org/10.5194/egusphere-egu2020-9144

(54)- Martelat, J.-E., Escartin, and J., Barreyre, T. 2020. Volcanic submarine hydrothermal activity from satellites : regional mapping and temporal evolution in shallow water systems. EGU2020-9144 https://doi.org/10.5194/egusphere-egu2020-9144

(53)- Martelat, J.-E., Jacob, J.-B., Giuliani, G., Goncalves, P., Feneyrol, J., Devidal, J.L., Omito E., Ichang’I D. 2018. Relics of Neoproterozoic sedimentary structures under High Temperature conditions in southern Kenya: a key to understand the metamorphic growth of green-vanadium bearing grossular.Thermal and mechanical evolution of collisional and accretionary orogens. Czech Republic Abst

(52)- Aguilar, C., Chopin, F., Štípská, P., Schulmann, K., Martelat, J.-E., Pitra, P.. 2018. Petrological evolution of a HP orthogneiss in Orlica-Śnieżnik Dome (NE Bohemian Massif). Thermal and mechanical evolution of collisional and accretionary orogens. Czech Republic Abst

(51)- Chopin, F., Aguilar, C., Schulmann, K., Štípská, P., Martelat, J.E., Pitra, P. 2017. Rheology of high-grade migmatites during lateral shortening and associated exhumation (Orlica-Śnieżnik dome, Bohemian Massif). 15th CETeG (Hungary)

(50)- Martelat, J.E., Giuliani, G., Bosse, V., Paquette, J.L., Omito, E., Ichang'i, D., Nyamai, C., Wamunyu, A., Ohnenstetter, D., Monié, P. 2015. U/Pb Ages of zircon and monazite from the tsavorite-bearing Neoproterozic rocks of southeastern Kenya, and the significance of static crystallisation of the tsavorite. Proceeding of the 13^th Biennial SGA Meeting, 24-27 August 2015, Nancy, France, vol. 4, pages 1311-1314

(49)- Giuliani, G., Ohnenstetter, D., Rollion C., Feneyrol J., Martelat, J.E., Omito, E., Ichang'i, D., Nyamai, C., Wamunyu, A. 2015. Tsavorite Deposits in the Neoproterozoic Mozambique Metamorphic Belt, with a Special Focus on the Mining Districts in Kenya. Proceeding of the 13^th Biennial SGA Meeting, 24-27 August 2015, Nancy, France, vol. 4, pages 1319-1322

(48)- Ichang'i, D., Giuliani, G., Martelat, J.E., Wamunyu, A., Nyamai, C. 2014. Gemstones in Kenya: typology and geological setting. IMA 2014, Johannesburg.

(47)-  Wamunyu, A., Ichang'i, D., Nyamai, C., Giuliani, G., Martelat, J.E. 2014. Geological setting, geochemistry and genesis of tsavorite deposits associiated with graphitic gneisses in the Davis mine, Mwatate (Taita Taveta region, Kenya). IMA 2014, Johannesburg.

(46)- Riel, N., Guillot, S., Jaillard, E., Martelat, J.E., Braun, J. 2013. Permian–Triassic thermal anomaly of the active margin of South America as a result of plate kinematics reorganization. Abs. EGU2013-11421.

(45)- Chopin, F., Schulmann, K.,  Skrzypek, E., Lehmann, J., Dujardin, J.R., Martelat, J.E., Lexa, O., Corsini, M., Edel, J.B., Štípská, P., Pitra, P., 2012. Structure and development of a mantled gneiss dome within a continental wedge: (Sudetes, European Variscan belt). Variscan 2012, 22−23 mai 2012, Sassari. Géologie de la France, 2012, 1, p. 84.

(44)- Chopin, F., Schulmann, K., Štípská, P., Martelat, J.E., Pitra, P., Lexa, O., Petri, B., 2012. Microstructural and metamorphic evolution of a high pressure granitic orthogneiss during continental subduction (Sudetes, European Variscan belt). EGU2012, Abs. EGU2012-6161.

(43)- Štípská, P., Chopin, F., Skrzypek, E., Schulmann, K, Lexa, O., Martelat, J.E., Bolinger, C., 2011. The role of large-scale folding and erosion on juxtaposition of eclogite and mid-crustal rocks (Orlica-Śnieżnik dome, Bohemian Massif). CETeG 2011, April 15–16 2011, Skalský Dvůr, Czech Republic.

(42)- Randrianasolo B., Rasamimanana G., Martelat, J.E., Lardeaux, J.-M., Godard V. 2011. Mise en évidence de sites favorables à la  présence de Kimberlites. Réunion SGF: Géologie/métallogénie de Madagascar au XXIème siècle.

(41)- Martelat, J.E., Ganino C., Randrianasolo B., Schulmann K., Lardeaux J.-M. 2011. Hétérogénéités mécaniques kilométriques et rôle métallogénique: le cas spécifique du Sud de Madagascar. Réunion SGF: Géologie/métallogénie de Madagascar au XXIème siècle.

(40)- Riel, N., Guillot, S., Jaillard, E., Martelat, J.E., Paquette, J.L., Lanari, P., Janots, E., Goncalves, P. 2011. Metamorphic and geochronogical study of a newly recognized paired metamorphic belt in Ecuador: implications for HT-LP metamorphism in a suprasubduction zone. EGU

(38)- Chopin, F., Schulmann, K, Martelat, J.E., Štípská, P., Petri, B, Lexa, O, 2010. Quantitative microstructural study of a deformation gradient in eclogite bearing orthogneiss: implications for the rheology of the lower crust (Orlica- Śnieżnik Dome – Central Sudetes). RST Bordeaux

(37)- Chopin, F., Schulmann, K., Skrzypek, E., Lexa, O., Martelat, J.E., Lehmann, J., Štípská, P., Pitra., P., 2010. Interplay between middle and lower crust during gneiss dome extrusion (Orlica- Śnieżnik Dome - Central Sudetes). RST Bordeaux

(35)- Malamoud, K., Martelat, J. E., Cordier, P., Schulmann, K., Lardeaux, J. M. 2010. Microstructural evidences of garnet plasticity in the continental crust. New example from south Madagascar. EGU Abst

(34)-  Amórtegui A., Jaillard E., Lapierre H., Martelat J.E. 2010. Nature and metamorphic evolution of oceanic plateau in Ecuador: consequences to the origin of adakitic magmas. Joint Meeting GSA Abst

(33)- Chopin F., Schulmann K., Martelat J.E., Lexa O.  2009. Flow of felsic lower/middle crust in a continental accretionnary wedge: a microstructural, textural, and petrological study. Granulites, partial melting and rheology of orogenic lower crust. Abst

(31)- Martelat, J. E., Schulmann, K., Randrianasolo, B., Lardeaux, J. M., Hasalova P. Ulrich S. 2009. Kilometric to micrometric structures of the Madagascar granulitic crust and its relation with melt. Granulites, partial melting and rheology of orogenic lower crust. Granulites & Granulites Czech Republic. Abst

(30)- Chopin, F., Schulmann K., Martelat J.E., Lexa, O. 2009. Rheology of felsic lower/midle crust during burial and exhumation in a continental accretionnary wedge. EGU. Abst

(29)- Martelat, J. E., Schulmann, K., Randrianasolo, B., Lardeaux, J. M., Hasalova P. Ulrich S. 2009. Granulite microfabrics and rheology of the Madagascar lower crust. EGU. Abst Poster
 
(28)- Randrianasolo, B., Martelat, J. E., Lardeaux, J. M., Schulmann, K., Nicollet, C. 2008. Mise en place d’une base de données facilitant la recherche par paramètres croisés de nouveaux gîtes d’intérêts économiques : exemple du Sud de Madagascar. RST Nancy. Abst

(27)- Schulmann K., Martelat J.E., Ulrich S., Lexa, O. and Stipska P. 2008. Anomalous weakness of feldspar compared to quartz in deformed porphyric granitoids: implications for rheology of felsic middle - lower crust. EGU. Abst

(26)- Martelat, J. E., Cardon, H., Lardeaux, J. M., Pili, E., Schulmann, K., Randrianasolo, B., Nicollet, C., Vidal, G. 2008. Lower crust to upper mantle coupling in hot orogens: the case of East African transpressional vertical shear zones. EGU. Abst.

(25)- Martelat J.E., Schulmann K., Ulrich S., Lexa, O. and Stipska P. 2007. Small amount of melt responsible for extreme weakening of orogenic middle crust of the Bohemian massif. Mechanics of Variscan Orogeny: a modern view on orogenic research, Orléans. 

(24)- Chopin, F., Schulmann K., Lexa, O., Stipska P. and Martelat J.E. 2007. Interpretation of deep orogenic fabrics superposed in continental accretion wedge (NE Bohemian massif). Mechanics of Variscan Orogeny: a modern view on orogenic research,Orléans. Poster

(21)- Martignole J., Stevenson R. and Martelat J.E. 2005. A Grenvillian anorthosite-mangerite-charnockite-granite suite in the basement of the Andes: The Ilo AMCG suite southern (Peru). ISAG Barcelona. 481-484. Abst.

(20)- Amórtegui A., Lapierre H., Jaillard E., Martelat J.E.,  Bosch D., Bussy F., Demant A. and Brunet P. 2005. Accreted oceanic fragments below the western cordillera of ecuador. ISAG Barcelona. 42-45. Abst.

(19)- Amórtegui A., Lapierre H., Jaillard E., Martelat J.E.,  Bosch D. and Demant A. 2004. Roots of accreted oceanic plateaus in western Cordillera of Ecuador. RST Strasbourg. France. Poster

(16)- Martignole J. and Martelat J.E. 2002. Grenvillian high-pressure granulites in western Quebec. Penrose conference. Beijing China. Poster 

(15)- Martelat J.E. and Martignole J. 2001. UHT-HP granulites and migmatites from the Arequipa Massif (Peru): A case of dry melting? GAC St John.

(14)- Martignole J. and Martelat, J.E. 2001. Mafic dykes as monitors of HP-granulite facies metamorphism in the Grenville Front zone of western Quebec. GAC St John.

(13)- Martelat J.E. and Martignole J. 2001. Ultrahigh-temperature (UHT) metamorphism in the south western part of the Arequipa massif (Peru): implication for the reconstruction of the Grenvillian belt. Journal of conference abstracts EUG XI, Vol. 6, n°1. Lithospheric structures and tectonics p. 381.

(12)- Martignole J. and Martelat J.E. 2001. High pressure granulites in the Grenville Front zone (western Quebec). Journal of conference abstracts EUG XI, Vol. 6, n°1. Lithospheric structures and tectonics p. 353.

(11)- Martelat J.E. and Martignole J. 2000. Aluminous nodules in the Mont Laurier terranes (Grenville Province). The missing andalousite? GeoCanada 2000 Alberta. PDF.

(10)- Martelat J.E. and Schulmann K. 1999. Rheological control of synconvergent collapse of thickened orogenic root (Bohemian Massif). EUG 10, Terra Abstracts. 4. p 39.

(9)- Martelat J.E., Schulmann K. and Lardeaux J.M. 1999. High-temperature microstructures in the lower crust of Madagascar. Geolines. 4^th Meeting Czech Tectonic Studies Group. 8. p 47.

(8)- Lardeaux J.M., Martelat J.E., Nicollet C., Pili E. and Ricard. Y. 1998. Shortening of an orogenic root, strain partitionning and uplift of granulites : the example of Madagascar. International AGU Boston.

(7)- Martelat J.E., Lardeaux J.M., Schulmann K. and Nicollet C. 1997. Microstructures of granulites and the rheology of the lower continental crust of Madagascar. International Symposium on Geology and Mineral Resources of Madagascar. Gondwana Res. group Misc. Publ. 5. p 50.

(6)- Martelat J.E., Schulmann K., Lardeaux J.M. and Nicollet C. 1995. Shear zones in the lower crust of Madagascar. Strain localization and softening mechanisms. EUG 8, Terra Abstracts. 7. p 49.

(5)- Martelat J.E., Lardeaux J.M., Schulmann K., Nicollet C. and Jezek J. 1995. Lower crust exhumation during transpressive regime : the example of Madagascar. Journal of the Czech Geological Society, Abstract. 40, 3. 110-111.

(4)- Nicollet C., Montel J.M., Foret S., Martelat J.E. and Lardeaux J.M. 1995. E-probe monazite dating of the uplift of the precambrian in the S of Madagascar. EUG 8, Terra Abstracts. 7. p 124.

(3)- Pili E., Martelat J.E., Sheppard S.M.F., Lardeaux J.M., Schulmann K. and Nicollet C. 1995. Grandes structures crustales et chenalisation des fluides. Analyse structurale et géochimique du Sud malgache. Journée scientifique du CNRS. Paris.

(2)- Martelat J.E., Nicollet C., Lardeaux J.M., Vidal G., Thoué F. et Rakotondrazafy R. 1994. Les structures syn-granulitiques du Sud-Ouest de Madagascar : un exemple d'extrusion crustale précambrienne, 15^ème R.S.T. Nancy. p 98.

(1)- Martelat J.E., Lardeaux J.M., Nicollet C., Vidal G., Thoué F. and Rakotondrazafy R. 1993. Strain pattern during high to ultra high temperature metamorphism : the example of the southern Madagascar, EUG 7, Terra Abstracts, 5. p 319.