Chercheurs

Sciences de la Terre / BENZERARA, KARIM

karim.benzerara

Position

Chargé de recherche CNRS - Full time researcher

Research Group : Géobiosphère Actuelle et Primitive

Institut de Minéralogie et de Physique des Milieux Condensés, Paris, France.

Thèmes de recherche

Interaction between microorganisms and rocks; fossilization of microbes; biomineralization; rock weathering

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 analysis of nannobacteria - coll. V. Miller (Mayo Clinic, Rochester, USA)

Prix et récompenses

2010: EAG Houtermans Medal
2009: Bronze Medal, CNRS
2003: Lavoisier fellowship from the French Foreign Affairs ministry

Publications

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)

E.J. Javaux, K. Benzerara. (2009) Microfossils. CR. Palevol

K. Benzerara, N. Menguy (2009) Looking for traces of life in minerals. CR Palevol.

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. 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.

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.

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, 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.

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.

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

S. Bernard, O. Beyssac, K. Benzerara (2008) Raman mapping using advanced line-scanning systems: geological applications. Applied Spectroscopy, 62, 1180-1188.

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.

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.

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.

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.

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.

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.

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.

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.

F. Farges, K. Benzerara and Brown G.E., Jr. Chrysocolla Redefined as Spertiniite (2007). Proceedings XAFS13 , AIP Conf. Proc., 223-226.

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.

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. Chapon, D. Moreira, P. López-García, T. Heulin, F. Guyot (2006) Microbial diversity on the Tatahouine meteorite. Meteoritics and Planetary Sciences, 41, 1249-1265.

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.

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.

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.

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.

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.

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.

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., 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.

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.

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.

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

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.

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, 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.

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.

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.