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**Positions** 2016 Full Professor - University of Nîmes, France / CHROME (EA 7352) research team and Director of the Professionnal Education Service - University of Nîmes, France (since 2013) 2004-2016 Lecturer at the University of Nîmes, France / CEREGE (Aix-Marseille, UM34) research team from 2004 to 2015 / CHROME (EA 7352) research team since 2015 2003-2004 Research Fellow: CNRS / CEREGE (UMR 6635 Aix-Marseille, France) 2002-2003 Research Fellow: ANDRA (France) 2000-2001 Research Fellow: University of Montpellier / CEA Marcoule, France 1996-1999 PhD Thesis : University of Montpellier / CEA Marcoule, France **Research topics** Geochemistry, Isotopy, Radioactivity, Elementary and Isotopic transfers (Rb-Sr, K-Ar systems), Water-Rock interactions, Soil-Plant transfers Applied to : waste management (radioactive wastes, sediment wastes, mining wastes) **Teaching topics** =================== Geology, geochemistry, geochronology, radioactivity, decommissionning, nuclear waste storage, nuclear fuel cycle In charge of the professional licence (LP 3D+ Management of Decommissionning, asbestos removal, remediation and wastes) and of the Master 2 'Nuclear safety', University of Nîmes, France, 30.


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Chloride accumulation in aboveground biomass of three macrophytes (Phragmites australis, Juncus maritimus, and Typha latifolia) depending on their growth stages and salinity exposure: application for Cl− removal and phytodesalinization

Emmanuel Delattre , Isabelle Techer , Benjamin Reneaud , Patrick Verdoux , Isabelle Laffont-Schwob
Environmental Science and Pollution Research, inPress, ⟨10.1007/s11356-021-17591-3⟩
Journal articles hal-03540597v1
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Origin of 87Sr enrichment in calcite cements in Jurassic limestones (Eastern Paris Basin, France)

Thomas Blaise , Michel Cathelineau , Philippe Boulvais , Isabelle Techer , Marie-Christine Boiron
Applied Geochemistry, 2022, 136, pp.105131. ⟨10.1016/j.apgeochem.2021.105131⟩
Journal articles insu-03418643v1
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Sr isotope discrimination of multi species aquaculture productions at a worldwide scale and contribution of the water reservoir in Sr plant input

Emmanuel Delattre , Isabelle Techer , Benjamin Reneaud , Veronique Thireau , Patrick Verdoux
Heliyon, 2020, 6 (1), pp.e03075. ⟨10.1016/j.heliyon.2019.e03075⟩
Journal articles hal-02442732v1
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Mineralogical and microstructural evolution of Portland cement paste/argillite interfaces at 70 °C – Considerations for diffusion and porosity properties

Philippines Lalan , Alexandre Dauzères , Laurent de Windt , Juuso Sammaljärvi , Daniele Bartier
Cement and Concrete Research, 2019, 115, pp.414-425. ⟨10.1016/j.cemconres.2018.09.018⟩
Journal articles hal-01884678v1
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The glaciogenic origin of the Pleistocene calcareous dust in Argentina on the basis of field, mineralogical, textural, and geochemical analyses

Thea Vogt , Norbert Clauer , Isabelle Techer
Quaternary Research, 2019, 91 (1), pp.218-233. ⟨10.1017/qua.2018.74⟩
Journal articles hal-02047310v1
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Impact of agricultural practice on the Sr isotopic composition of food products: Application to discriminate the geographic origin of olives and olive oil.

Isabelle Techer , Salim Medini , Myriam Janin , Maider Arregui
Applied Geochemistry, 2017, ⟨10.1016/j.apgeochem.2017.05.010⟩
Journal articles hal-01519824v1
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Geochemical signature of paleofluids in microstructures from Main Fault in the Opalinus Clay of the Mont Terri rock laboratory, Switzerland

Norbert Clauer , I. Techer , Christophe Nussbaum , Ben Laurich
Swiss Journal of Geosciences, 2017, 110 (1), pp.105128. ⟨10.1007/s00015-016-0253-0⟩
Journal articles hal-01544318v1
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Geochemical Tracing of Potential Hydraulic Connections between Groundwater and Run-Off Water in Northeastern Kansas, USA

Norbert Clauer , Isabelle Techer , Sam Chaudhuri
Hydrology, 2017, 4 (4), pp.56. ⟨10.3390/hydrology4040056⟩
Journal articles hal-03102643v1
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Impact of a 70°C temperature on an ordinary Portland cement paste/claystone interface: An in situ experiment

Philippines Lalan , Alexandre Dauzères , Laurent de Windt , Danièle Bartier , Juuso Sammaljärvi
Cement and Concrete Research, 2016, 83 (164–178), ⟨10.1016/j.cemconres.2016.02.001⟩
Journal articles hal-01302708v1
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Reconstructing fluid-flow events in Lower-Triassic sandstones of the eastern Paris Basin by elemental tracing and isotopic dating of nanometric illite crystals

Thomas Blaise , Norbert Clauer , Michel Cathelineau , Marie-Christine Boiron , Isabelle Techer
Geochimica et Cosmochimica Acta, 2016, 176, pp.157-184. ⟨10.1016/j.gca.2015.12.018⟩
Journal articles insu-01250051v1
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Evolution of porewater composition through time in limestone aquifers: Salinity and D/H of fluid inclusion water in authigenic minerals (Jurassic of the eastern Paris basin, France)

Thomas Blaise , Alexandre Tarantola , Michel Cathelineau , Philippe Boulvais , Isabelle Techer
Chemical Geology, 2015, 417, pp.210-227. ⟨10.1016/j.chemgeo.2015.10.014⟩
Journal articles insu-01216563v1
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Detecting the thermal aureole of a magmatic intrusion in immature to mature sediments: a case study in the East Greenland Basin (73◦N)

Charles Aubourg , Isabelle Techer , Laurent Geoffroy , Norbert Clauer , François Baudin
Geophysical Journal International, 2014, 196 (1), pp.160-174. ⟨10.1093/gji/ggt396⟩
Journal articles hal-00903412v1

Air quality and geographical tracing of atmospheric PM by Sr isotopes continuous monitoring (Soumis)

M. Janin , F. Boutonnet , A. Fromage-Mariette , I. Techer
Environmental Monitoring and Assessment, 2014
Journal articles hal-01790237v1

Origin of calcareous dust in Argentinean Pleistocene periglacial deposits traced by Sr, C and O isotopic compositions, and REE distribution

Isabelle Techer , Norbert Clauer , Thea Vogt
Chemical Geology, 2014, 380, pp.119-132. ⟨10.1016/j.chemgeo.2014.04.024⟩
Journal articles hal-01520563v1
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Methods for PDO olive oils traceability: state of art and discussion about the possible contribution of strontium isotopic tool

Myriam Janin , Salim Medini , Isabelle Techer
European Food Research and Technology, 2014, 239, pp.745-754. ⟨10.1007/s00217-014-2279-8⟩
Journal articles hal-01539820v1

Methodological development for 87Sr/86Sr measurement in olive oil and preliminary discussion of its use for geographical traceability of PDO Nîmes (France)

Salim Medini , Myriam Janin , Patrick Verdoux , Isabelle Techer
Food Chemistry, 2014, 171, pp.78-83. ⟨10.1016/j.foodchem.2014.08.121⟩
Journal articles hal-01278033v1
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In situ investigations and reactive transport modelling of cement paste / argillite interactions in a saturated context and outside an excavated disturbed zone

Daniele Bartier , Isabelle Techer , Alexandre Dauzères , Philippe Boulvais , Marie-Madeleine Blanc-Valleron
Applied Geochemistry, 2013, 31, pp.94-108. ⟨10.1016/j.apgeochem.2012.12.009⟩
Journal articles insu-00818761v1
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Tracing interactions between natural argillites and hyper-alkaline fluids from engineered cement paste and concrete: Chemical and isotopic monitoring of a 15-years old deep-disposal analogue

Isabelle Techer , Daniele Bartier , Philippe Boulvais , E Tinseau , K Suchorski
Applied Geochemistry, 2012, 27 (7), pp.1384-1402. ⟨10.1016/j.apgeochem.2011.08.013⟩
Journal articles insu-01544216v1

About Sr isotopes in coffee "Bourbon Pointu" of the Réunion Island

I. Techer , J. Lancelot , Frédéric Descroix , Bernard Guyot
Food Chemistry, 2011, 126, pp.718--724. ⟨10.1016/j.foodchem.2010.11.035⟩
Journal articles hal-01193245v1

Ageing effect on the mineral and chemical c 1 omposition of Opalinus Clays (Mont Terri, Switzerland) after excavation and surface storage

I. Techer , N. Clauer , N. Liewig
Applied Geochemistry, 2009, 24 (10), pp.2000-2014. ⟨10.1016/j.apgeochem.2009.07.014⟩
Journal articles halsde-00510554v1

Cementation of kerogen-rich marls by alkaline fluids released during weathering of thermally metamorphosed marly sediments. Part I : isotopic (C, O) study of the Khushaym matruk natural analogue (central Jordan).

Serge Fourcade , Laurent Trotignon , Philippe Boulvais , Isabelle Techer , Marcel Elie
Applied Geochemistry, 2007, 22, pp.1293-1310. ⟨10.1016/j.apgeochem.2007.02.012⟩
Journal articles hal-00171944v1

Cementation of kerogen-rich marls by alkaline fluids released during weathering of thermally metamorphosed marly sediments. Part II : organic matter evolution, magnetic susceptibility and metals (Ti, Cr, Fe) at the khushaym matruk natural analogue (central jordan).

Marcel Elie , Isabelle Techer , Laurent Trotignon , Hani Khoury , Elias Salameh
Applied Geochemistry, 2007, 22, pp.1311-1328. ⟨10.1016/j.apgeochem.2007.02.013⟩
Journal articles hal-00172196v1

Propagation of high-alkaline fluids in an argillaceous formation: Case study of the Khushaym Matruk natural analogue (Central Jordan)

I. Techer , H.N. Khoury , E. Salameh , F. Rassineux , C. Claude
Journal of Geochemical Exploration, 2006, 90, 1-2, pp.53-67. ⟨10.1016/j.gexplo.2005.09.004⟩
Journal articles hal-00077483v1

Chemical and isotopic characterization of water–rock interactions in shales induced by the intrusion of a basaltic dike: A natural analogue for radioactive waste disposal.

I. Techer , D. Rousset , N. Clauer , J. Lancelot , J.y Boisson
Applied Geochemistry, 2006, 21, 2, pp.203-222. ⟨10.1016/j.apgeochem.2005.09.017⟩
Journal articles hal-00021595v1

Propagation of high-alkaline fluids in an argillaceous formation : case study of the Khushaym Matruck natural analogue (Central Jordan)

I. Techer , H.-N. Khoury , E. Salameh , F. Rasineux , C. Claude
Journal of Geochemical Exploration, 2006, 90 (1-2), pp.53-67
Journal articles hal-00378486v1

Les promesses de l'écosystème nucléaire

Véronique Thireau , Isabelle Techer
"Contrat et compliance, Les acteurs et leurs stratégies" (sous la direction de Vanessa Monteillet et Gustavo Cerqueira), Nov 2022, Nîmes, France
Conference papers hal-03875578v1

Assessment of oxygen, oxyanions and trace metals benthic fluxes by a novel non-invasive technique in coastal areas

Julie Régis , Samuel Meulé , Patrick Verdoux , Isabelle Techer , Sylvain Rigaud
Goldschmidt, Jul 2021, Lyon, France
Conference papers hal-04068119v1

Geochemistry of claystone/cement paste interface at 70 °C: an in situ experiment

Philippines Lalan , Alexandre Dauzères , Laurent de Windt , Danièle Bartier , Isabelle Techer
Goldschmidt, Jun 2016, Yokohama, Japan
Conference papers hal-01391416v1
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Identifying eroded Messinian deposits on the Maltese Islands by gypsum Sr isotopes

I. Techer , L. Casteleyn , M. Rocher , Y. Missenard , P. Robion
14th International Symposium on Water-Rock Interaction, WRI 14, Jun 2013, Avignon, France. pp.830-833, ⟨10.1016/j.proeps.2013.03.101⟩
Conference papers hal-00817848v1

Sealing capacity of clays in multilayer systems : a field study of fracture-fluid flow relationships (Blue Clay formation, Maltese Islands)

Y. Missenard , M. Rocher , L. Castelyen , P. Robion , A. Grare
EGU General Assembly 2011, Apr 2011, Vienne, Austria. pp.vol. 13
Conference papers hal-00618737v1

Ageing effect on the chemical and isotopic (Sr and Ar) characteristics of cored Mont Terri Opalinus Clays

I. Techer , N. Clauer , N. Liewig
3rd Int. Meeting Clays in natural & engineered barriers for radioactive waste confinement, Sep 2007, Lille, France
Conference papers halsde-00178972v1

Magnetic and mineralogical alterations under thermal stress at 95°C of Callovo-Oxfordian claystones (Bure, France) and lower Dogger Mont Terri claystones (Switzerland)

J.P. Pozzi , Charles Aubourg , D. Janots , M. Cathelineau , N. Clauer
3rd Int. Meeting Clays in natural & engineered barriers for radioactive waste confinement, Sep 2007, Lille, France
Conference papers halsde-00178807v1

Images magnétique, géochimique et minéralogique d'un stress thermique à 100°C sur les argilites de Mont Terri et Bure

J.P. Pozzi , Charles Aubourg , I. Techer , N. Clauer , M. Cathelineau
IVe Colloque du GdR FORPRO, 2006, La Grande Motte, France. pp.119-125
Conference papers hal-00089213v1

Caractérisation minéralogique, géochimique et isotopique initiale des argiles à Opalinus du laboratoire souterrain de Mont Terri (Suisse) avant l'expérience thermique HE-D

I. Techer , N. Clauer , Charles Aubourg , N. Liewig , J.P. Pozzi
IVe Coll. du GdR FORPRO, 2006, La Grande Motte, France. pp.127-134
Conference papers hal-00089215v1

Rare Earth Elements, K/Rb, and Sr Isotope Ratios as Some Additional Clues to the Presence of Chemical Elements in Atmospheric Precipitations in a Continental Interior Location in the U.S.A.

S. Chaudhuri , N. Clauer , I. Techer , K. Semhi
3rd EGU General Assembly, 2006, Vienne, Austria. pp.EGU06-A-01302
Conference papers hal-00082577v1

The Kushaim Matruk site, a natural witness of the propagation of alkaline fluids into a clayey environment: isotopic approach (C, O, Sr, Ar)

I. Techer , Serge Fourcade , Philippe Boulvais , M. Pagel , N. Clauer
2005, pp.17-18
Conference papers hal-00114581v1

Isotopic signatures (13C, 18O, 87Sr/86Sr) of paleofluids related to different fracturing and diagenitic stages in the Dogger limestones from 210 drilling. Comparisons with the isotopic signatures of Callovian-Oxfordian clays fom the Meuse/Hte Marne labo

L. Siebenaller , Serge Fourcade , I. Techer , C. Hibsch , M. Cathelineau
2 ème Congrès International "Clays in Natural Engineered Barriers for Radioactive Waste Confinement, Mar 2005, Tours, France. pp.425-426
Conference papers hal-00114224v1
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Management of dredged marine sediments in southern France : main keys to large-scale beneficial re-use

Garry Dorleon , Sylvain Rigaud , Isabelle Techer
International Symposium on Environmental Biotechnology and Engineering (7ISEBE), May 2023, Marseille, France.
Conference poster hal-04095742v1
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Salinity problems in dredged sediments treated by phytoremediation

Floriane Sordes , Isabelle Techer , Slimane Sahli , Solène Cothelet , Allyson Moureaux
International symposium of LabEx DRIIHM, Sep 2021, Toulouse, France. , 2021, ⟨10.34972/driihm-9b297b⟩
Conference poster hal-03346815v1

Radioactive Remains

Laura Jaeger , Myriam Janin , Julien Michon , Isabelle Techer , Veronique Thireau
Benoit Roig, Karine Weiss, Veronique Thireau. Management of Emerging Public Health Issues and Risks : Multidisciplinary approaches to the changing environment, Elsevier, pp.101-126, 2018, 978-0-12-813290-6. ⟨10.1016/B978-0-12-813290-6.00005-6⟩
Book sections hal-01974674v1