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Mentions légalesKarim Benzerara
** NEWS **
Sylvain Bernard received the Hauy-Lacroix award from the french Mineralogical Society (SFMC) for his PhD work
Paper on microbial-like garnet-filled trails in Archaean basalt published in Geobiology
Paper on Phototrophic Fe-oxidizing bacteria (STXM and TEM) just published in AEM
Paper on organic carbon heterogeneities in 2.7Ga old stromatolites available online (GCA)
Chargé de recherche CNRS - Full time researcher
Research group: Géobiosphère Actuelle et Primitive
Institut de Minéralogie et de Physique des Milieux Condensés
140 Rue de Lourmel, Bat 7
75015 Paris
Phone: 33 1 44 27 75 42 Fax: 33 1 44 27 37 85
karim.benzerara @ impmc.jussieu.fr
http://www.impmc.upmc.fr/fr/recherche/geomicrobiologie/thematiques2.html
Domaines de Recherche -Research Interests
Interaction between microorganisms and rocks; fossilization of microbes; biomineralization; rock weathering
Sujets de recherche - Research Topics
Study of iron oxidation by neutrophilic anaerobic bacteria -collaboration A. Kappler
Nanoscale characterization of stromatolites- collaboration with P. Lopez-Garcia, D. Moreira (Orsay) & J. Kazmierczak (Poland)
Nanoscale study of Archean stromatolites - K. Lepot & P. Philippot (IPGP)
Nanoscale study of fossil lycophyte spores metamorphosed at very High pressure (Alps, France) - S. Bernard (PhD) & O. Beyssac (ENS, Paris)
Weathering of basalt clasts from Ontong Java Plateau - coll NR Banerjee (Univ Alberta), N. Menguy (IMPMC)
Microscopic analysis of microbial iron and arsenic oxidation in the Carnoules river (France) - coll. G. Morin (IMPMC, Paris), G.E. Brown Jr (Stanford, USA)
STXM study of the Carnoulès Acid Mine Drainage (104 ko)STXM analysis of nannobacteria - coll. V. Miller (Mayo Clinic, Rochester, USA)
Techniques analytiques - Analytical techniques
Transmission Electron Microscopy, Synchrotron-based X-ray microscopy (STXM)
Students
Jennyfer Miot (IMPMC): Iron-oxidizing bacteria
Sylvain Bernard (ENS Paris): Fossils in metamorphic rocks
Kevin Lepot (IPGP) defended his thesis on Dec. 14th 2007: Study of Archean microfossils and organic carbon
Enseignement - Teaching
Correction de leçons et de seconds entretiens dans la préparation au CAPES de l’université Paris VII:
« Les informations apportées par les fossiles »
« Granite et basalte, une comparaison »
"Comparaison estuaires et deltas"
Cours:
"Diagrammes de phase"
"Gisements metaliferes"
"La sédimentation océanique"
Sujet ecrit CAPES blanc:
\"Les meteorites\" (1684 ko)Module optionelle "Techniques Analytiques en minéralogie, géophysique et géomicrobiologie" M2 IPGP
https://claroline.ipgp.fr/claroline/document/document.php
Module optionel M1/M2 IPGP et Marne-la-Vallée "Biominéraux"
Module "Biomineralization: important analytical methods and techniques", M2 MNHN
Publications:
Gillet, Ph., Barrat, J.A., Heulin, Th., Achouak, W., Lesourd, M., Guyot, F., and Benzerara, K. (2000) Bacteria in the Tatahouine meteorite: nanometric-scale life in rocks. Earth and Planetary Science Letters, 175, 161-167.
Malavergne, V., Guyot, F., Benzerara K., and Martinez, I.(2001) Description of new shock-induced phases in the meteorites of Shergotty, Zagami, Nakhla and Chassigny. Meteoritics, 36, 1297-1306.
K. Benzerara, J.A. Barrat, F. Guyot, P. Gillet and M. Lesourd. (2002) Cristobalite inclusions in the Tatahouine achondrite: Implications for the shock conditions. American Mineralogist. 87, 1250-1256.
Gillet, Ph. Barrat, J.A, Deloule, E., Wadhwa, M., Jambon, A., Sautter, V., Crozaz, G., Devouard, B., Neuville, D., Benzerara, K., Lesourd, M. (2002) Aqueous alteration in the North West Africa 817 (NWA 817) Martian Meteorite . Earth and Planetary Science Letters. 203, 431-444.
K. Benzerara, Menguy, N., Guyot, F., Dominici, D., and Gillet, P. (2003) Nannobacteria-like calcites at surface of the Tatahouine meteorite. Proc. Natl. Acad. Sci. USA 100, 7438-7442.
Brown G.E. , Jr., Templeton A.S., Trainor T.P., Spormann A.M., Yoon T.H., and Benzerara K. (2004) Synchrotron-based studies of microbe-metal ion-mineral interactions. Water-Rock Interaction.Proc. 11 th Internat. Symp. on Water-Rock Interaction, Saratoga Springs, NY, USA, R.B. Wanty and R.R. Seal II, Eds., Taylor & Francis Group, London, p. 1069-1077
Yoon T.-H., Johnson S.B., Benzerara K., Doyle C.S., Tyliszczak T., Shuh D.K., and Brown G.E., Jr. (2004) In Situ Characterization of Aluminum-Containing Nanoparticle-Aqueous Suspensions Using Scanning Transmission X-ray Microscopy. Langmuir 20, 10361-10366.
Benzerara K., Menguy N., Guyot F., Skouri F., de Lucca G., and Heulin T. (2004) Bacteria-controlled precipitation of calcium phosphate by R. tataouinensis. EPSL 228, 439-449.
Benzerara, K., Menguy, N., Guyot, F., De Luca G., Heulin, T., and Audrain, C. (2004) Experimental colonization and weathering of orthopyroxenes by the pleomorphic bacteria Ramlibacter tatahouinensis. Geomicrobiology Journal. 21, 341-349.
Fichier joint (726 ko)Brown G.E., Jr., Templeton A.S., Trainor T.P., Spormann A.M., Yoon T.-H. & Benzerara K. (2004) Synchrotron-based studies of microbe-metal ion-mineral interactions. Proceedings of the Water-Rock Interaction Symposium, 11, in press.
Benzerara K., Yoon T.-H., Tyliszczak T., Constantz B., Spormann A.M., and Brown, G.E. Jr. (2004) Scanning Transmission X-ray Microscopy Study of Microbial Calcification. Geobiology, 2, 249-259.
Benzerara K., Yoon T.-H., Menguy N., Tyliszczak T., and Brown G. (2005) Nanoscale Environments Associated with Bioweathering of a Meteoritic Mg-Fe-Pyroxene. Proc. Natl. Acad. Sci. USA, 102, 979-982.
Fichier joint (312 ko)Benzerara K., Menguy, N., Guyot, F., Vanni, C, and Gillet P. (2005) High resolution study of silicate-carbonate-micro-organism interface prepared by focused ion beam (FIB). Geochim. Cosmochim. Acta, 69, 1413-1422.
Fichier joint (1073 ko)López-García P., Kazmierczak J., Benzerara K., Kempe S., Guyot F., Moreira D. (2005) Bacterial diversity and carbonate precipitation in the giant microbialites from the highly alkaline Lake Van, Turkey. Extremophiles, 9, 263-274.
Bluhm H., et al. (2005) Soft X-ray Microscopy and Spectroscopy at the Molecular Environmental Science Beamline at the Advanced Light Source. J. Elec. Spectros. and Related Phenom. 150, 86-104.
Benzerara K., Menguy N., López-García P., Yoon T.H., Kazmierczak J., Tyliszczak T., Guyot F., Brown, G.E. Jr. (2006) Nanoscale detection of organic signatures in carbonate microbialites. Proc. Natl. Acad. Sci. USA 103, 9440-9445.
K. Benzerara, V. Chapon, D. Moreira, P. López-García, T. Heulin, F. Guyot (2006) Microbial diversity on the Tatahouine meteorite. Meteoritics and Planetary Sciences, 41, 1249-1265.
fichier joint (1964 ko)Tae Hyun Yoon, Karim Benzerara, Sungwoo Ahn, Richard G. Luthy, Tolek Tyliszczak and Gordon E. Brown, Jr. (2006) Nanometer-Scale Chemical Heterogeneities of Black Carbon Materials and Their Impacts on PCB Sorption Properties: Soft X-ray Spectromicroscopy Study. Env. Sci. &Technol. 40, 5923-5929.
K. Benzerara, V.M. Miller, G. Barell, V. Kumar, J. Miot, G.E. Brown, Jr., and J.C. Lieske (2006) Search for microbial signatures within human and microbial calcifications using soft X-ray spectromicroscopy. Journal of Investigative Medicine 54, 367-379.
F. Farges, K. Benzerara and Brown G.E., Jr. Chrysocolla Redefined as Spertiniite (2007). Proceedings XAFS13 , AIP Conf. Proc., 223-226.
K. Benzerara, T. Tyliszczak and GE Brown, Jr. Study of interactions between microbes and minerals by scanning transmission X-ray microscopy (STXM). (2007) Proceedings XAFS13, AIP Conf. Proc. 726-731.
K. Benzerara, N. Menguy, N.R. Banerjee, T. Tyliszczak, F. Guyot and G.E. Brown, Jr. (2007) Alteration of submarine basaltic glass from the Ontong Java Plateau: a STXM and TEM study. Earth Planet. Sci. Lett. 260, 187-200.
S. Bernard, K. Benzerara, O. Beyssac, N. Menguy, F. Guyot, G.E. Brown Jr., B. Goffé (2007) Exceptional preservation of fossils plant spores in high-pressure metamorphic rocks. EPSL, 262, 257-272.
Nisbet E., Zahnle K, Gerasimov MV, Helbert J, Jaumann R, Hofmann BA, Benzerara K, Westall F. (2007) Creating habitable zones, at all scales, from planets to mud micro-habitats, on earth and on mars. Space Science Reviews 129 (1-3): 79-121.
van Thienen P, Benzerara K, Breuer D, Gillmann C, Labrosse S, Lognonne P, Spohn T (2007) Water, life, and planetary geodynamical evolution. Space Science Reviews 129 (1-3): 167-203.
K. Lepot, K. Benzerara, G.E. Brown Jr. & P. Philippot (2008) Microbially influenced formation of 2,724-million-year-old stromatolites. Nature Geoscience, 1, 118 - 121.
K. Benzerara, G. Morin, T.H. Yoon, J. Miot, T. Tyliszczak, C. Casiot, O. Bruneel, F. Farges, and G.E. Brown, Jr. (2008) Nanoscale study of As biomineralization in an acid mine drainage system. Geochim. Cosmochim. Acta, 72, 3949-3963.
S. Bernard, K. Benzerara, O. Beyssac, G.E. Brown Jr., L. Grauvogel Stamm, P. Duringer (2008) Ultrastructural and chemical study of modern and fossil sporoderms by Scanning Transmission X-ray Microscopy (STXM). Review of Palaeobotany and Palynology, 156, 248-261.
S. Bernard, O. Beyssac, K. Benzerara (2008) Raman mapping using advanced line-scanning systems: geological applications. Applied Spectroscopy, 62, 1180-1188.
S. Schädler, C. Burkhardt, F. Hegler, K.L. Straub, J. Miot, K. Benzerara, A. Kappler (2009) Formation of cell-iron-mineral aggregates by phototrophic and nitrate-dependent anaerobic Fe(II)-oxidizing bacteria. Geomicrobiology Journal, 26, 93-103
J. Miot, K. Benzerara, G. Morin, A. Kappler, S. Bernard, M. Obst, C. Férard, F. Skouri-Panet, J.M. Guigner, N. Posth, M. Galvez, G.E. Brown Jr, F. Guyot (2009) Iron biomineralization by neutrophilic iron-oxidizing bacteria. Geochimica Cosmochimica Acta, 73, 696-711.
J. Miot, K. Benzerara, G. Morin, S. Bernard, O. Beyssac, E. Larquet, G. Ona-Nguema, A. Kappler, F. Guyot (2009) Transformation of vivianite by anaerobic nitrate-reducing iron-oxidizing bacteria. Geobiology, 7, 373-384.
M. Obst, J.J. Dynes, J.R. Lawrence, G.D.W. Swerhone, K. Benzerara, C. Karunakaran, K. Kaznatcheev, T. Tyliszczak, A. P. Hitchcock (2009) Precipitation of amorphous CaCO3 (aragonite-like) and by cyanobacteria: a STXM study of the influence of EPS on the nucleation process. Geochimica Cosmochimica Acta, 73, 4180-4198.
J. Miot, K. Benzerara, M. Obst, A. Kappler, F. Hegler, C. Bouchez, F. Guyot, G. Morin. (2009) Extracellular iron biomineralization by photoautotrophic iron-oxidizing bacteria. Applied and Environmental Microbiology, 75, 5586-5591.
K. Lepot, P. Philippot, K. Benzerara, G.Y Wang (2009) Garnet-filled trails associated with carbonaceous matter mimicking microbial filaments in Archaean basalt. Geobiology, 7, 1-10.
K. Lepot, K. Benzerara, G.E. Brown Jr., P. Philippot (2009) Organic matter heterogeneity in 2.72 Ga stromatolites: alteration versus preservation by sulphur incorporation, Geochimica Cosmochimica Acta 73, 6579-6599.
K. Benzerara, N. Menguy (2009) Looking for traces of life in minerals. CR Palevol. (available online)
E.J. Javaux, K. Benzerara. (2009) Microfossils. CR. Palevol (available online)
K. Benzerara, A. Meibom, Q. Gautier, J. Kaźmierczak, J. Stolarski, N. Menguy, and G.E. Brown, Jr. (2009) Nanotextures of aragonite in stromatolites from the quasi-marine Satonda crater lake, Indonesia. In Speleothems, Travertins and Tuffs? GSL book serie (in press)
Education
~ Now : CNRS full time research position, Institut de Minéralogie et Physique de la Matière Condensée, Paris
2003-2004: Postdoctoral Fellow, Surface and Aqueous Geochemistry Group, G.E. Brown Jr, Stanford University.
1999-2003 : PhD student in fundamental and applied geochemistry at the University of Paris (Pierre et Marie Curie). Advisor : Francois Guyot And Thierry Heulin. Title: "Geomicrobiology of the Tataouine meteorite"
1998-1999: Master degree in Geochemistry at the IPGP (Institute of Earth Physics Paris).
1998 : Agrégation des Sciences de la Vie et de la Terre
1995-1999 : Ecole Normale Supérieure Paris. Earth Sciences
Liens Web
Avant Projet scientifique pour une ligne de Microscopie X-mous (pour les sciences de la Terre, la Biologie, la Physique et la Matiere molle)
Fichier joint (3221 ko)Stanford
http://emsi.stanford.edu/aboutEMSI.html
STXM - synchrotron
http://beamline1102.als.lbl.gov/
http://unicorn.mcmaster.ca/index.html
http://www.synchrotron-soleil.fr/
Geomicrobiology
Institut de Physique du Globe de Paris - Mise à jour 02/2012
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