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CLAUER Norbert

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Norbert ClauerDirecteur de Recherche Emérite du CNRS
(Emeritus Research Director of the French National Research Council)

Diplôme principal (Main Degree) : Doctorat es-Sciences (equivalent of habilitation), Université Louis Pasteur Strasbourg, 1976

Contact :
Phone (bureau/office) : 33(0)
Portable (cell-phone) : 33(0)
Fax : 33(0)


Activités de recherche (research activities)

- Chemistry and isotope chemistry of detrital and authigenic components and of brines of sediments in deposition, diagenetic, low-grade metamorphic and weathering conditions, with a special emphasis on the mechanisms of clay crystallization and recrystallization.
- The main topics of the recent research were on : (1) the diagenetic evolution of sedimentary basins with a special attention to problems of time, duration and temperature conditions of the events, and (2) the use of combined techniques including chemistry and isotope chemistry of minerals and brines, TEM and SEM observations, fluid inclusion micro-thermometry in order to improve understanding of mineral-brine interactions.
- The major topics studied presently are : (1) understanding of the physical and chemical conditions of clay nucleation and growth processes, mainly on the basis of isotopic methods during the evolution of sedimentary basins, (2) understanding of how the conditions evolve, and (3) relate the nucleation and growth processes to ore deposits and hydrocarbon maturation, migration and trapping, and to tectonic related hydrothermal activity.
- Also recently, I started varied collaborations to study the behavior of essential, trace and rare-earth elements in the surface environment (soils and lagoons) in order to study more precisely their transfer from soils to plants and from water to plants, and in turn to evaluate the impact of organisms on their immediate environment.

Programmes en cours (current research in progress)

• Geochemical and isotopic aspects of clay - water interactions and the disposal of nuclear waste
• Elemental, especially REE, transfers during soil-plant interactions, metal contaminations in lagoon waters and sediments
• Fluid-mineral-organic interactions in sedimentary basins by aqueous-pyrolysis experiments
• Clay particle nucleation and growth processes controlled by isotopic methods during the evolution of sedimentary basins - relationships to ore deposits and hydrocarbon maturation, transport and trapping, with a special attention to the B and Li isotope signatures
• Isotopic dating of major and secondary faulting systems related to structural evolutions of cratonic areas

Méthodes analytiques utilisées (analytical methods currently used)

• Separation of clay "fundamental particles" (0.02 μm and less in size)
• X-ray diffraction
• Electron-microscopy techniques (SEM, TEM, ESEM)
• Wet chemistry (ICP-AES, ICP-MS)
• Isotope geochemistry (K-Ar, Rb-Sr, Sm-Nd, Pb-Pb, δ18O, δD, δB, δLi)


My publications include 1 book co-authored, 2 books co-edited, 208 publications in journals with a pier-review system, 39 publications in national journals, as well as 338 abstracts in national and international meetings. The publications of the 5 recent years are listed hereunder ; the others are available upon request.
(update 01/05/12)

_Clauer N. & Lerman A. - Thermal history analysis of sedimentary basins : An isotopic approach to illitization. In : Harris N.D. and Peters K. (eds), Thermal history analysis of sedimentary basins : methods and applications. Society of Economic Paleontologists and Mineralogists, Special Issue, in press.
_Williams L.B., Clauer N. & Hervig R.L. – Light stable isotope microanalysis of trace elements in clays. In : Quantitative Mineralogy and Microanalysis of Sediments and Sedimentary Rocks, Short Course Volume, GAC-MAC workshop, St John’s, Newfoundland and Labrador, Canada, May 25-26, 2012, in press.
_Brockamp O. & Clauer N. - Clay mineral provinces in tidal mud flat deposits at Germany’s North Sea coast with illite K-Ar ages potentially modified by biodegradation. Estuar. Coast. Shelf Sci., in press.

_Semhi K., Clauer N., Chaudhuri S., Boutin R. & Hassan M. (2012) Effect of a high silver stress on the element transfers from a smectite-type clay substrate to plants. Green and Sustainable Chemistry, 2, 76-89.
_Sasseville C., Clauer N. & Tremblay A. (2012) Timing of fault reactivation in the upper crust of the St. Lawrence rift system, Canada, by K-Ar dating of illite-rich fault rocks. Canadian Journal of Earth Sciences, 49, 1-16.
_Clauer N., Liewig N. & Zwingmann H. (2012) Time constrained illitization in gas-bearing Rotliegend (Permian) sandstones from Northern Germany by illite K-Ar dating. American Association of Petroleum Geologists Bulletin, 96, 519-543.
_Clauer N. & Mongodin Y. (2012) Chemical and isotopic (K-Ar) systematic of a mylonitic mica after natural and experimental interactions with varied fluids. Chemical Geology, 294-295, 18-25.
_Semhi K., Clauer N. & Chaudhuri S. (2012) Variable element transfers from an illite-rich substrate to growing plants during a three-month experiment. Applied Clay Science, doi : 10.1016/j.clay.2011.12.002.

_Chaudhuri S., Totten M., Clauer N., Meisse J., Reiple G., Massie S. & Semhi K. (2011) A study yielding the first demonstration that rare-earth elements could be a useful geochemical tracer in formation hydraulic fracturing schemes for enhanced gas and oil production. Journal of the Oklahoma City Geological Society, 62, 214-223.
_Brockamp O., Pache T. & Clauer N. (2011) Tonmineralbestand quartärer Sedimente aus dem Umfeld des Salzstocks Gorleben (Norddeutschland). Zeitschrift der deutschen Geselschaft für Geowissenschaft, 162, 333-349.
_Clauer N. (2011) Another insight into the illitization process by K-Ar dating of micro- to nano-metric illite-type particles leached with alkylammonium cations. Clay Minerals, 46, 593-612.
_Clauer N., Jourdan F. and Zwingmann H. (2011) Dating petroleum emplacement by illite 40Ar/39Ar laser stepwise heating : a comment. American Association of Petroleum Geologists Bulletin, 95, 2107-2111.
_Clauer N., O’Neil J.R., Honnorez J. & Buatier M. (2011) 87Sr/86Sr and 18O/16O ratios of clay minerals from a hydrothermal mound near the Galapagos rift as records of origin, crystallization temperature and fluid composition. Marine Geology, 288, 32-42.
_Surace I., Clauer N., Thélin P. and Pfeifer H.R. (2011) Structural analysis, clay mineralogy and K-Ar dating of fault gouges from Centovalli Line (Central Alps) for reconstruction of their recent activity. Tectonophysics, 510, 80-93.
_Brockamp O., Schlegel A. & Clauer N. (2011) Mesozoic hydrothermal impact on Rotliegende and Bunter immature sandstones in the High Rhine trough and its adjacent eastern area (southern Black Forest, Germany). Sedimentary Geology, doi : 10.1016/j.sedgeo.2010.12.001.

_Nierhoff R., Clauer N. & Speath G. (2011) New findings on the tectono-metamorphic history of the western Rhenish Massif by K-Ar dating of metasedimentary illite. Journal of Geodynamics, 52, 129-142.
_Pierret M.C. & Clauer N. (2010) Reply to the comment of Mitchell et al. (2010) on "Formation of Thetis Deep metal-rich sediments in the absence of brines, Red Sea" by Pierret et al. (2010). J. Geochem. Explor., 108, 114.
Clauer N., Liewig N. & Bobos I. (2010) K-Ar, δ18O and REE constraints on the genesis of ammonium illite from the Harghita Bai hydrothermal system, Romania. Clay Miner., 45, 393-411.
Toulkeridis T., Peucker-Ehrenbrink B., Clauer N., Kröner A., Schidlowski M. & Todt W. (2010) Pb-Pb age, stable isotope and chemical composition of Archaean magnesite, Barberton Greenstone Belt, South Africa. Geol. Soc. Bull., 167, 943-952.
Laverret E., Clauer N., Fallick A., Mercadier J., Patrier P., Beaufort D. & Bruneton P. (2010) K-Ar dating and δ18O - δD tracing of illitization within and outside the Shea Creek uranium prospect, Athabasca Basin, Canada. Appl. Geochem., 25, 856-871.
Lavastre V., Le Gal La Salle C., Michelot J.L., Giannesini S., Benedetti L., Lancelot L., Lavielle B., Massault M., Thomas B., Gilabert E., Bourlès D., Clauer N. & Agrinier P. (2010) Establishing constraints on groundwater ages with :36Cl, 14C, 3H, and noble gases : A case study in the eastern Paris basin, France. Appl. Geochem., 25, 123-142.
Pierret M.C., Clauer N., Bosch D. & Blanc G. (2010) Formation of Thetis metal-rich sediments in the absence of brines, Red Sea. J. Geochem. Explor., 104, 12-26.
_Vogt T., Clauer N. & Larqué P. (2010) Impact of climate and related weathering processes in the authigenesis of clay minerals : Examples from circum-Baikal region, Siberia. Catena, 80, 53-64.

_Ledésert B., Hebert R., Gentet A., Bartier D., Clauer N. & Grall C. (2009) Fractures, hydrothermal alterations and permeability in the Soultz Enhanced Geothermal System. CR Géosci., Paris, doi : 10.1016/j.crte.2009.09.011.
Srodon J., Clauer N., Huff W., Dudek T. & Banas M. (2009) K-Ar dating of the Lower Paleozoic K-bentonites from the Baltic Basin and the Baltic Shield : implications for the role of temperature and time in the illitization of smectite. Clay Min., 44, 361-387.
Techer I., Clauer N. & Liewig N. (2009) Ageing effect on the mineral and chemical composition of Opalinus Clays (Mont Terri, Switzerland) after excavation and surface storage. Appl. Geochem., 24, 2000-2014.
Clauer N., Pierret M.C. & Chaudhuri S. (2009) Role of subsurface brines in salt balance : the case study of the Caspian Sea and the Kara Bogaz Bay. In : Saline Lakes and Global Change, Lerman A. (Ed.), Aqu. Geochem., 15, 237-261.
Zwing A., Clauer N., Liewig N. & Bachtadse V. (2009) Identification of remagnetization processes in Paleozoic sedimentary rocks of the NE Rhenish Massif (Germany) by K-Ar dating and REE tracing of authigenic illite and Fe-oxides. Journal of Geophysical Research, 114, B06104, doi:10.1029/2008JB006137.
Semhi K., Chaudhuri S. & Clauer N. (2009) Fractionation of rare-earth elements in plants during an experimental growth in varied clay substrates. Appl. Geochem., 24, 447-453.

_Clauer N., Liewig N., Ledesert B. & Zwingmann H. (2008) Evolution of Triassic sandstones from Vosges Mountains-Rhine Graben structural setting, NE France, based on K-Ar illite dating : Local and regional geodynamic implications. Clay Minerals, 43, 363-379.
Semhi K., Chaudhuri S., Clauer N. & Boeglin JL. (2008) Impact of termite activity on soil environment : A perspective from their soluble chemical components. Int. J. Environ. Sci. Tech., 5, 431-444.
Clauer N. & Cocherie A. (2008) Isotope Geochronology. In Stratigraphy. Terminology and Practice, J. Rey & S. Galeotti (eds), Technip, 91-98.
Pache T., Brockamp O. & Clauer N. (2008) Varied pathways of river-borne clay minerals in a near-shore marine region : A case study of sediments from the Elbe- and Weser rivers, and the SE North Sea. Estuar. Coast. Shelf Sci., 78, 563-575.
Honty M., Clauer N. & Šucha V. (2008) Rare-earth element systematics of mixed-layered illite-smectite from sedimentary and hydrothermal environments of the Western Carpathians (Slovakia). Chem. Geol., 249, 167-190.
Bartier D., Ledésert B., Clauer N., Meunier A., Liewig N., Morvan G. & Addad A. (2008) Hydrothermal alteration of the Soultz-sous-Forêts granite (Hot Fractured Rock geothermal exchanger) into a tosudite and illite assemblage. Eur. J. Miner., 20, 131-142.
Sasseville C., Tremblay A., Clauer N. & Liewig N. (2008) K-Ar time constraints on the evolution of polydeformed fold-thrust belts : the case of the Northern Appalachians (southern Québec). J. Geodyn., 45, 99-119.
Hadj Amor R., Quaranta G., Gueddari F. & Clauer N. (2008) The life cycle assessment applied to a coastal lagoon : the case of the Slimane lagoon (Tunesia) by the study of seasonal variations of the aquatic eutrophication potential. Environ. Geochem., 54, 1103-1110.