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Phone: +32 2 650 47 14

Email: nmattiel@ulb.ac.be


Research interests

My main research interest is focused on the Geochemistry of Metal Trace Elements in the Environment on one hand and in the Earth's Mantle on the other hand. The core of our work remains the applications of non-traditional stable isotopes (Zn, Cd, Cu, Fe) in addition to traditional radiogenic isotopes (Pb, Hf, Nd, Sr...), as tracers of sources and processes of global biogeochemical cycles in Earth, environmental pollution and paleo-environmental reconstruction. Our present research projects are dedicated to:

1. Trace metals in the environment

Trace metals in atmospheric dusts

Study of the isotopic compositions of aerosols emitted by metallurgical activities has been developed in the perspective to trace their sources and impacts. Zn isotopic signatures of dry deposits have been determined inside and around the Metaleurop plant (Northern France), and Fe isotopic compositions have been analyzed in dusts emitted by the Sollac plant (Dunkerque, France)*. In parallel, Zn and Pb isotopes have been analyzed in soils, dusts and lichens in South of Portugal in a former mining and metallurgical area, in order to mark out the influence of each main metallic source**.

Further developments are now in progress on natural dusts, especially in the Southern Hemisphere.

(*) Collaborations with the LPCA at Université du Littoral-Cote d'Opale, France (P. Flament, K. Deboudt).

(**) Collaboration with Dept. de Geologia da Universidade de Lisboa, Protugal (F. Africano, C. Branquinho).

(***) Collaboration with the German Meteorological Service, Research Center for Human Biometeorology (Air Quality Department) in Freiburg (V. Dietze) and the Department of Earth and Environmental Science, University of Pennsylvania (USA) (R. Gieré).

Paleo-environments reconstruction : variation of trace element inputs in peat cores

First, Pb isotopes have been used on peat cores from Hautes-Fagnes where ancient Roman road has been exhumed. While Pb geochemistry has usually been used to quantify the impact of actual anthropic activity, such as mines or plants, this study focuses on the "paleo-pollution" associated to archeological site construction*.

Second, dust fluxes and climate changes that may have occurred during the last 12,000 years are also investigated using Pb and Nd isotopes in peat cores from various locations in Europe**.

(*) Collaborations with ULg (N. Fagel) and VUB (V. Renson, Ch. Snoeck).

(**) Collaboration with EcoLab from the University of Toulouse, France (F. Devleeschouwer and G. Le Roux).

Mobility of transition metals in the soil-plant system: a Zn isotopic approach

The plant-soil system is part of the Earth's Critical Zone and is hence at the crossroads of trace element (or trace metal) biogeochemical cycling. In particular, plants absorb zinc as an essential nutrient from soil solution. Excessive Zn uptake from contaminated substrates can lead to food chain contamination.

To better characterize the mobility and biogeochemical cycling of industrial Zn (and Cd) in the soil-plant system, an integrated isotopic and geochemical study of the evolution and exchange processes controlling substratum (solid phase, soil solutions) and associated plants has been performed*.

(*) Collaboration with the ELI-e at UCL (B. Delvaux, E. Couder, D. Houben, S. Opfergelt) and E. Smolders (KUL), Belgium.

Cu, Zn, Cd and Fe systematics in marine and coastal environments

Measurement of Cu, Zn, Cd and Fe isotopic compositions has been developed in our lab since 2002, taking care of several aspects of non-traditional stable isotope mass spectrometry: introduction systems (wet plasma, dry plasma (DSN/Aridus)), mass bias correction methods using SSBM, SSNC and EEN standards, non-spectral interferences (matrix effect and doping techniques), spectral interferences (isobaric interference), and isotopic dilution techniques (after paying careful attention to an inter-laboratory calibration of reference materials).

Those analytical developments have been applied to suspended particulate matter (SPM) and sediments from both the Seine (France) and the Schelde (Belgium) estuaries.

The Cu, Zn and Fe concentration and isotope profiles have been also investigated firstly in ice cores from two sampling campaigns ANT XXII/2 ISPOL (RV Aurora Australis, 2003) and SAZ-SENSE (RV Polarstern, 2005), and second in sea water, snow and sea ice from different Antarctic expeditions (McMurdo station, 2003; NBP-0709 SIMBA (RV Nathaniel B. Palmer, 2007))*.

(*) Collaborations with the Laboratory of Glaciology at ULB (JL Tison, V. Schoeman) and NIOZ in Holland (H. de Baar).

2. Metal stable isotopes in the mantle

Geochemical constraints on mantle plume dynamics

This topic was firstly dedicated to the study of the Kerguelen Mantle Plume, using ultrabasic xenoliths from the Kerguelen Archipelago*. The main purpose was to investigate the age and the composition of the lithosphere located beneath the northern part of the Kerguelen plateau, the second largest LIP (Lu-Hf and Sm-Nd geochronological techniques).

Isotopic tools (Pb, Sr, Nd and Hf) were secondly applied on lavas and xenoliths from Santiago Island (Cape Verde Archipelago), and lavas from Madeira Island (**). Both these islands can be related to the activity of separated mantle plumes in the Atlantic Ocean. More particularly, the role of the thickened subcontinental lithospheric mantle, strongly metasomatized, beneath Santiago Island is investigated for its interaction with the mantle plume.

As a whole, the geodynamic of the mantle is investigated through time using the non-traditional stable and radiogenic isotopes as tools for dating, tracing the processes, describing the mantle evolution from the Archean.

(*) Collaboration with the PCIGR (D. Weis and J.S. Scoates), UBC, Canada.

(**) Collaboration with Dept. de Geologia da Universidade de Lisboa (J. Mata), Portugal.


GEOL-F211: Introduction à la Pétrologie (N. Mattielli)

GEOL-F305: Géodynamique et Pétrologie Magmatique et Métamorphique (N. Mattielli)

GEOL-F411: Géochimie élémentaire et isotopique (N. Mattielli; V. Debaille)

GEOL-F412: Géodynamique Chimique Globale (N. Mattielli; V. Debaille)

GEOL-F527: Traçage isotopique des cycles biogéochimiques (E. Keppens, L. André, D. Weis, N. Mattielli)

ENVI-F454: Energie: Ressources et Environnement (N. Mattielli; M. Huart)

ENVI-F529: Gestion des Ressources et de l'Energie (M. Huart, G. Wallenborn; N. Mattielli)

SGOL-B307: Pétrologie (N. Mattielli, Prof. invite à l'Université de Namur)

Recent publications


- N. Fagel, F. Fontaine, E. Pleuger, J. J. Otten, M. Allan, M. Lechenault, M. M. Ghilardi, N. Mattielli, and J.-P. Goiran (2016). Record of human activities in the Pb isotopes signature of coastal sediments from the Roman archaeological site of Cala Francese, Cape Corsica (France). Journal of Archaeological Science.

- H. Vanneste, F. De Vleeschouwer, S. Bertrand, A. M. A. Martinez-Cortizas, A. Vanderstraeten, N. Mattielli, A. Coronato, N. Piotrowska, C. Jeandel, and G. Le Roux(2016). Elevated dust deposition in Tierra del Fuego (Chile) resulting from Neoglacial Darwin Cordillera glacier fluctuations. Journal of Quaternary Science.

- L. S. Doucet, N. Mattielli, D. Ionov, W. Debouge, and A. Golovin (2016). Zn isotopic heterogeneity in the mantle: A melting control? Earth and Planetary Science Letters 451, 232-240. doi: 10.1016/j.epsl.2016.06.040.

- V. Dehant, B. Baludikay, J. Beghin, D. Breuer, P. Claeys, Y. Cornet, V. Debaille, F. El Altrassi, C. Francois, J. De Keyser, C. Gillmann, S. Goderis, Y. Hidaka, D. Honing, G. Hublet, E. Javaux, O. Karatekin, L. Maes, N. Mattielli, M. Maurice, S. McKibbin and PlaneTOPERS (2016). PLANET TOPERS: Planets, Tracing the Transfer, Origin, Preservation, and Evolution of their Reservoirs. Astrobiology. doi:10.1007/s11084-016-9488-z.

- C. Snoeck, J. Pouncett, G. Ramsey, I. I .Meighan, N. Mattielli, S. Goderis, J. Lee-Thorp, and R. Schulting (2016). Mobility during the Neolithic and Bronze Age in Northern Ireland explored using strontium isotope analysis of cremated human bone. American Journal of Physical Anthropology. doi: 10.1002/ajpa.22977.


- J. Petit, L. L. Dutruch, N. Mattielli, J. J. Schafer, A. A. Coynel, G. G. Blanc, J.-F. Chiffoleau, D. Auger, C. C. Bossy, H. H. Derriennic, and M. Mikolaczyk (2015). The estuarine geochemical reactivity of Zn isotopes and its relevance for the biomonitoring of anthropogenic Zn and Cd contaminations from metallurgical activities: Example of the Gironde fluvial-estuarine system, France. Geochimica et Cosmochimica Acta 170 (9399), 108-125.

- G. Monge, F. J. Jimenez-Espejo, A. Garcia-Alix, F. Francisca Martinez-Ruiz, N. Mattielli, C. Finlayson, N. Ohkouchi, M. Cortes Sanchez, J. M. Bermudez de Castro, R. Blasco, J. Rosell, J. Carrion, J. Rodriguez-Vidal, and G. Finlayson (2015). Earliest evidence of pollution by heavy metals in archaeological sites. Nature, 14252. doi:10.1038/srep14252.

- J. J. Karlsson, U. U. Segerstrom, A. A. Berg, N. Mattielli, and R. R. Bindler (2015). Tracing modern environmental conditions to their roots in early mining, metallurgy, and settlement in Gladhammar, southeast Sweden: Vegetation and pollution history outside the traditional Bergslagen mining region. Holocene 25 (6), 944-955. doi:10.1177/0959683615574586.

- C. Snoeck, J. Lee-Thorp, R. Schulting, J. De Jong, W. Debouge, and N. Mattielli(2015). Calcined bone provides a reliable substrate for strontium isotope ratios as shown by an enrichment experiment. Rapid Communications in Mass Spectrometry 29, 107-114.

- E. Couder, N. Mattielli, T. Drouet, E. Smolders, B. B. Delvaux, A. Iserentant, C. Meeus, C. M. Maerschalk, S. Opfergelt, and D. D. Houben (2015). Transpiration flow controls Zn transport in Brassica napus and Lolium multiflorum under toxic levels as evidenced from isotopic fractionation. Geoscience 347 (7-8), 386-396. doi:10.1016/j.crte.2015.05.004.

- J. De Jong, S. E. Stammerjohn, S. S. Ackley, J.-L. Tison, N. Mattielli, and V. Schoemann (2015). Sources and fluxes of dissolved iron in the Bellingshausen Sea (West Antarctica): The importance of sea ice, icebergs and the continental margin. Marine chemistry. doi:10.1016/j.marchem.2015.08.004.


- D. D. Houben, P.P. Sonnet, G. G. Tricot, S. Opfergelt, N. Mattielli, and E. Couder (2014). Impact of root-induced mobilization of zinc on stable Zn isotope variation in the soil-plant system. Environmental Science and Technology 48 (14), 7866-7873. doi:10.1021/es5002874.

- V. Panizzo, J. Crespin, X. Crosta, A. Shemesh, G. G. Masse, R. Yam, N. Mattielli, and D. Cardinal (2014). Sea ice diatom contributions to Holocene nutrient utilization in East Antarctica. Paleoceanography 29, doi: 10.1002/2014PA002609, 328-342.

- V. Renson, P. Claeys, D. D. Ben-Shlomo, J. J. Coenaerts, M. Samaes, K. K. Nys, K. Charbit-Nataf, and N. Mattielli (2014). Coupling lead isotope analysis and petrography to characterize fabrics of storage and trade containers from Hala Sultan Tekke (Cyprus). Archaeometry 56 (2), 261-278. doi:10.1111/arcm.12017.

- N. Fagel, M. Allan, G. Le Roux, N. Mattielli, N. Piotrowska, and J. Sikorski (2014). Deciphering human-climate interactions in an ombrotrophic peat record: REE, Nd and Pb isotope signatures of dust supplies over the last 2500 years (Misten bog, Belgium). Geochimica et Cosmochimica Acta. doi:10.1016/j.gca.2014.03.014.

- J. Vander Auwera, O. Bolle, A. Dupont, C. Pin, J. Paquette, B. Charlier, J.-C. Duchesne, N. Mattielli, and M. A. H. Bogaerts (2014). Source-derived heterogeneities in the composite (charnockite-granite) ferroan Farsund intrusion (SW Norway). Precambrian Research 251, 141-163. doi:10.1016/j.precamres.2014.06.003.

- C.C. Siegel, N. Arndt, S. S. Barnes, A. L. A. Henriot, P. Haenecour, V. Debaille, andN. Mattielli (2014). Fred's Flow (Canada) and Murphy Well (Australia): thick komatiitic lava flows with contrasting compositions, emplacement mechanisms and water contents. Contributions to Mineralogy and Petrology 168, 1084. doi:10.1007/s00410-014-1084-5.


- J. Petit, J. J. Schafer, A. A. Coynel, G. G. Blanc, V. V. N. Deycard, H. H. Derriennic, L. L. Lanceleur, L. L. Dutruch, C. C. Bossy, and N. Mattielli (2013). Anthropogenic sources and biogeochemical reactivity of particulate and dissolved Cu isotopes in the turbidity gradient of the Garonne River (France). Chemical Geology 359, 125-135.

- V. Renson, A. A. Jacobs, J. J. Coenaerts, N. Mattielli, K. K. Nys, and P. Claeys (2013). Using lead isotopes to determine pottery provenance in Cyprus: clay source signatures and comparison with late Bronze Age Cypriote pottery. Geoarchaeology 28 (6), 517-530. doi:10.1002/gea.21454.

- E. Smolders, L. Versieren, D. Shuofei, N. Mattielli, D. Weiss, I. Petrov, and F. Degryse (2013). Isotopic fractionation of Zn in tomato plants suggests the role of root exudates on Zn uptake. Plant and Soil 370 (1-2), 605-613.

- J. Petit, A. Taillez, and N. Mattielli (2013). A case study of spectral and non-spectral interferences on copper isotope measurements by multi-collector ICP-MS (wet plasma). Geostandards and Geoanalytical Research. doi:10.1111/j.1751-908x.2012.00187.

- J. De Jong, V. Schoemann, N. Maricq, N. Mattielli, P. Langhorne, T. Haskell, and J.-L. Tison (2013). Iron in land-fast sea ice of McMurdo Sound derived from sediment resuspension and wind-blown dust attributes to primary productivity in the Ross Sea, Antarctica. Marine chemistry 157, 24-40.

- M. Allan, G. Le Roux, N. Piotrowska, J. Beghin, E. Javaux, M. Court-Picon, N. Mattielli, S. Verheyden, and N. Fagel (2013). Mid- and late Holocene dust deposition in western Europe: The Misten peat bog (Hautes Fagnes-Belgium). Climate of the Past 9 (5), 2285-2298.

- V. Debaille, C. C. O'Neill, A. Brandon, P. Haenecour, Q.-Z. Yin, N. Mattielli, and A. A. Treiman (2013). Stagnant-lid tectonics in early Earth revealed by 142Nd variations in late Archean rocks. Earth and planetary science letters 373, 83-92.


- C. Beier, J. Mata, F. Stockhert, N. Mattielli, P. Brandl, P. Madureira, F. Genske, S. Martins, J. Madeira, and K. Haase (2012). Geochemical evidence for melting of carbonated peridotite on Santa Maria Island, Azores. Contributions to Mineralogy and Petrology. doi:10.1007/s00410-012-0837-2.

- V. Renson, A. M. A. Martinez-Cortizas, N. Mattielli, J. J. Coenaerts, C. C. Sauvage, F. De Vleeschouwer, C. C. Lorre, F. Vanhaecke, R. R. Bindler, M. M. Rautman, K. K. Nys, P. Claeys (2012). Lead isotopic analysis within a multiproxy approach to trace pottery sources. The example of White Slip II sherds from Late Bronze Age sites in Cyprus and Syria. Applied eochemistry 28, 220-234.

- G. Le Roux, N. Fagel, F. De Vleeschouwer, M. Krachler, V. Debaille, P. Stille, N. Mattielli, W.O. van der Knaap, J. F.N. van Leeuwen, and W. Shotyk (2011). Volcano- and climate-driven changes in atmospheric dust sources and fluxes since the Late Glacial in Central Europe. Geology 40, 335-338.

- N. Fagel and N. Mattielli, Holocene evolution of deep circulation in the northern North Atlantic traced by Sm, Nd and Pb isotopes and bulk sediment mineralogy. Paleoceanography 26

Book chapters

- M. Grégoire, J.-Y. Cottin, A. Giret, N. Mattielli, and D. Weis. Metasomatized refractory upper mantle and deep magmatic intrusions beneath the Kerguelen islands revealed by ultrabasic and basic xenoliths. In: Petrology and Geochemistry of magmatic suites of rocks in the continental and oceanic crusts (1997) 371-384. Université Libre de Bruxelles, Royal Museum for Central Africa.

Laboratoire G-Time Université Libre de Bruxelles Département Géosciences, Environnement et Société CP 160/02, 50 Avenue F.D. Roosevelt, B-1050 Brussels, Belgium