Tél. : 01.69.08.02.48
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Research scientist (CEA)
Archaeomagnetism-palaeomagnetism
Research interests
Secular variation of the geomagnetic field over the Holocene (acquisition of directional and intensity data in Europe and Africa; construction of regional secular variation curves)
Archaeological chronologies (archaeomagnetic dating, Bayesian modelling)
Palaeointensity protocols
CV
From 2020: CEA research scientist at Laboratoire des Sciences du Climat et de l’Environnement (LSCE), Gif-sur-Yvette, France
2019 – 2020 : Junior Chair LabEx Sciences Archeologiques de Bordeaux LaScArBx (UMR 5060 IRAMAT-CRP2A, CNRS, Univ. Bordeaux Montaigne). Member of the palaeomagnetic laboratory of Rennes (UMR 6118 Géosciences Rennes).
2017 – 2018: Postdoc at Centre Europeen de Recherche et d’Enseignement en Geosciences de l’Environnement (CEREGE), Aix-en-Provence, France. Funding: ANR SVPINTMEX (PI: Mireille Perrin) and Campus France – Prestige.
2015 – 2016 : Postdoc at Department of Earth and Environmental Sciences, Ludwig-Maximilians Univ. Munich, Germany. Funding: DFG Eigenestelle.
July 2013 – June 2014 : Postdoc at Department of Earth and Environmental Sciences, Ludwig-Maximilians Univ., Munich, Germany. Project : Palaeomagnetic and rock magnetic study of Mistastin Lake impact structure (Labrador, Canada). PI: Stuart Gilder
September – December 2012 : Research engineer at IRAMAT-CRP2A, Bordeeaux, France.
October 2011 – August 2012 : Temporary teaching and research position (ATER) at University Rennes 1, France (UMR 6118 Géosciences Rennes).
2008 – 2012 : Phd « Physique des archeomateriaux » at University Bordeaux Montaigne, Datation archeomagnetique en France durant le premier millenaire av. J.-C.: etalonnage des variations du champ magnetique terrestre en direction et intensite. Directed by Philippe Lanos (DR CNRS, UMR5060 IRAMAT-CRP2A, Bordeaux) and Annick Chauvin (Prof., University Rennes 1, UMR6118 Géosciences Rennes) Link: http://www.theses.fr/2012BOR30011
Coordination of research projects
2023-2026: co-PI of the project OBTAAIN Outline the Breadth, Timescale and impActs of African IroN metallurgy (CNRS-MITI, 80 Prime, 40 k€), co-director of the PhD thesis of Giorgia Ricci
2023-2024: PI of the project VASAFE Secular variation of the intensity of the geomagnetic field in Equatorial Africa (INSU Tellus, 15 k€)
2021-2022: PI of the project TIMA Time of Iron Metallurgy in Africa (CNRS-MITI, 27 k€)
2020: PSE funding, Univ. Bordeaux Montaigne: First archaeomagnetic study in the Horn of Africa: implications to the chronology of the first production societies.
December 2018 – June 2021: Junior Chair Labex LaScArBx : Chronology of Early Middle Age monuments in France: dating of architectural baked clays with the geomagnetic intensity.
2018: PNP INSU Secular variation in Kenya, co-PI with Mireille Perrin, CEREGE.
2017-2018 : Bourse Campus France – Prestige, Secular variation and paleointensity in Mexico during the Plio-Quaternary (PRESTIGE-2017-1-0002)
March 2015 – February 2017: Projet DFG HE7343/1-1 What is the maximum geomagnetic field strength in Western Europe circa 1000 BC ? An investigation of geomagnetic spikes and archaeomagnetic jerks (http://gepris.dfg.de/gepris/projekt/265360031) (190 k€)
Implication in research projects (not exhaustive list)
2025-2029: ERC StG AGROCHRONO “Timing the Economic, Cultural and Environmental patterns of Agropastoralism development in the Indo-Iranian Borderlands” (PI: E. Casanova, CEA, LSCE)
2023-2026: ANR HOLOGRAM “The Holocene rock art of the Iberian mediterranean basin: how you paint, who you are (PI: E. Lopez-Montalvo, CNRS, TRACES, Toulouse)
2022: PSPCA, Premieres Societes de Production dans la Corne de l’Afrique (PI: Jessie Cauliez, CNRS, TRACES, Toulouse), funded by Ministere de l’Europe et des Affaires Etrangeres and Institut de Recherches Archeologiques et Historiques de Djibouti.
2020: VAPOR-Afar, Volcanological and Archaeological Program for Obsidian Research in Afar (PI: Lamya Khalidi, CNRS, CEPAM, Nice), funding by Centre Francais des Etudes Ethiopiennes and the Ethiopian Authority for Research and Conservation of Cultural Heritage.
2019-2022: PCR, L’enceinte romaine du Mans (Sarthe, France) (PIs: Martial Monteil, Univ. Nantes; Hugo Meunier, Service archéologique de Laval; Aline Durand, Univ. Le Mans)
2017-2020: ANR-CONACYT project SVPINTMEX , Secular variation and palaeointensity in Mexico during the Plio-Quaternary, (PIs: Mireille Perrin and Luis Alva-Valdivia)
2013-2014: DFG-SPP 1488 Planetary Magnetism, Do meteorite impacts the geomagnetic field and can meteorites retain the record of planetary magnetic fields? (PI: Stuart Gilder)
Publications (not exhaustive list)
https://cv.hal.science/gwenael-herve
Mologni C., Revel M., Chaumillon E., Malet E., Coulombier T., Sabatier P., Brigode P., Hervé G., Develle A.-L., Schenini L., Messous M., Davtian G., Carré A., Bosch D., Volto N., Ménard C., Khalidi L., Arnaud F., 2024. Fifty-year seasonal variability of East African droughts and floods recorded in Central Afar lake sediments (Ethiopia) and their connections with ENSO. Climate of the Past. 20, 1837-1860. https://doi.org/10.5194/egusphere-2024-310
Hervé, G., Guibert, P., Meunier, H., Monteil, M., Dufresne, P., Lanos, P., Oberlin, C., Ben Aissa, G., 2023. Chronology of the Late Roman Antiquity walls of Le Mans (France) by OSL, archaeomagnetism and radiocarbon. Journal of Archaeological Science: Reports, 51, 104172.
Urbanova, P., Régaldo-Saint Blancard, P., Guibert, P., Lanos, P., Hervé, G., Dufresne, P., Bouvier, A., 2023. Le site paléochrétien Notre-Dame de la Place à Bordeaux : nouveaux acquis chronologiques. Archéologie médiévale, 52, 7-45.
Tchibinda Madingou, B., Perrin, M., Hervé, G., Hernandez Cardona, A., Alva-Valdivia, L.M., Cruz Antillon, R., 2021. First full vector archeomagnetic data from Northern Mexico. Geochemistry Geophysics Geosystems, 22, e2021GC009969.
Brown, M.C., Hervé, G., Korte, M., Genevey, A., 2021. Global archaeomagnetic data: The state of the art and future challenges. Physics of the Earth and Planetary Interiors, 318, 106766.
Hervé, G., Chauvin, A., Lanos, P., Lhuillier, F., Boulud-Gazo, S., Denti, M., Macario, R., 2021. How did the dipole axis vary during the first millennium BCE? New data from West Europe and analysis of the directional global database. Physics of the Earth and Planetary Interiors, 309, 106712.
Alva-Valdivia, L., Rodriguez-Trejo, A., Cruz-Antillon, R., Hervé, G., Perrin, M., Salgado-Saito, M., Mahgoub, A.M., 2021. Archaeomagnetic dating and magnetic characterization of ceramics from Paquimé, Casas Grandes region, Chihuahua, Mexico. Journal of Archaeological Science: Reports, 37, 103040.
Tchibinda Madingou, B., Hervé, G., Perrin, M., Nkirote M’Mbogori, F., Guemona, D., Mathé, P.-E., Rochette, P., Williamson, D., Mourre, V. & Robion-Brunner, C., 2020. First archeomagnetic data from Kenya and Chad: analysis of iron furnaces from Mount Kenya and Guéra Massif. Physics of the Earth and Planetary Interiors, 309, 106588.
Hervé, G., Perrin, M., Alva-Valdivia, L.M., Rodriguez-Trejo, A., Hernandez-Cardona, A., Cordova Tello, M. & Meza Rodriguez, 2019. Secular variation of the geomagnetic field in Mexico during the first millennium BCE. Geophysics Geochemistry Geosystems. doi:10.1029/2019GC008668
Kostadinova-Avramova, M., Kovacheva, M., Boyadzhiev, Y. & Hervé, G., 2019. Archeomagnetic knowledge of Neolithic in Bulgaria with emphasis on intensity changes. Geological Society, London, Special Publications, 497, https://doi.org/10.1144/SP497-2019-48
Rodriguez-Trejo, A., Alva-Valdivia, L.M., Perrin, M., Hervé, G. & Lopez-Valdés, N., 2019. Analysis of geomagnetic secular variation for the last 1.5 Ma recorded by volcanic rocks of the Trans Mexican Volcanic Belt: New data from Sierra de Chichinautzin, Mexico. Geophysical Journal International, 219, 1, 594-606.
Hervé, G., Chauvin, A., Lanos, P., Rochette, P., Perrin, M. & Perron d’Arc, M., 2019. Cooling rate effect on thermoremanent magnetization in archaeological baked clays: an experimental study on modern bricks. Geophysical Journal International, 217, 1413-1424.
Hervé, G., Perrin, M., Alva-Valdivia, L., Madingou Tchibinda, B., Rodriguez-Trejo, A., Hernandez Cardona, A., Cordova Tello, M. & Meza Rodriguez, C., 2019. Critical analysis of the Holocene paleointensity database in Central America: impact on geomagnetic modelling. Physics of the Earth and Planetary Interiors, 289, 1-10.
Lhuillier, F., Shcherbakov, V.P., Shcherbakova, V.V., Ostner, S., Hervé, G. & Petersen, N., 2019. Palaeointensities of Oligocene and Miocene volcanic sections from Ethiopia: field behaviour during the Cainozoic. Geophysical Journal International, 216 (2), 1482-1494.
Hervé G. & Lanos, P., 2018. An alternative to the problem of the Hallstattian plateau effect: Improvements of archaeomagnetic dating in Western Europe from the Late Bronze to the Late Iron Ages. Archaeometry, 40, 870-883.
Hervé, G., Fassbinder, J., Gilder, S., Metzner-Nebelsick, C., Gallet, Y., Genevey, A., Schnepp, E., et al. 2017. Fast geomagnetic field intensity variations between 1400 and 400 BCE: New archaeointensity data from Germany. Physics of the Earth and planetary Interiors, 270, 143-156.
Hervé, G., Munzi-Santoriello, P., Lanos, P., Brun, J.-P. & Caputo, P., 2016. Datation archéomagnétique de deux fours du haut Moyen-Âge à Cumes (Campanie), Archéosciences, 40, 35-45.
Hervé, G., Chauvin, A., Milcent, P-Y. & Tramon, A., 2016. Archaeointensity study of five Late Bronze Age fireplaces from Corent (Auvergne, France), Journal of Archaeological Science: Reports, 7, 414-419.
Hervé, G., Gilder, S., Marion, C.L., Osinski, G.R., Pohl, J., Petersen, N. & Sylvester, P.J., 2015. Paleomagnetic and rock magnetic study of the Mistastin lake impact structure (Labrador, Canada): Implications for geomagnetic perturbation and shock effects, Earth and Planetary Science Letters, 417, 151-163.
Vaschalde, C., Hervé, G., Lanos, P., Thiriot, J. et coll., 2014. La datation des structures de cuisson : intégration de l’archéomagnétisme et du radiocarbone, apports de l’anthracologie, Archéologie médiévale, 44, 155-170.
Cruz, F., Bardel, D., Camerlynck, C., Hervé, G. & Petit, C., 2014. Une fortification inédite de la résidence princière de Vix (Côte-d’Or, France), Archäologisches Korrespondenzblatt, 44(3), 377-393.
Pavon-Carrasco, F.J., Gomez-Paccard, M., Hervé, G., Osete, M.L. & Chauvin, A., 2014. Intensity of the geomagnetic field in Europe for the last 3 ka: Influence of data quality on geomagnetic field modeling, Geochemistry Geophysics Geosystems, doi:10.1002/2014GC005311
Hervé, G., Chauvin, A. & Lanos, P., 2013. Geomagnetic field variations in Western Europe from 1500 BC to 200 AD. Part II : New intensity secular variation curve, Physics of the Earth and planetary Interiors, 218, 51-65.
Hervé, G., Chauvin, A. & Lanos, P., 2013. Geomagnetic field variations in Western Europe from 1500 BC to 200 AD. Part I : Directional secular variation curve, Physics of the Earth and planetary Interiors, 218, 1-13.
Hervé, G., Schnepp, E., Chauvin, A., Lanos, P. & Nowaczyk, N., 2011. Archaeomagnetic results on three First Iron Age salt-kilns from Moyenvic (France), Geophysical Journal International, 185, 144-156.
Other informations
Co-director of the Phd of Giorgia Ricci (2023-2026): Évolution chronologique de la métallurgie du fer en Afrique de l’Ouest (pays Bassar, Togo) aux XVe-XXe siècles .
Co-director of the Phd of Brina Madingou Tchibinda at CEREGE, Aix-en-Provence, France (2017-2021): Secular variation of the geomagnetic field in Africa and Mexico over the last two millennia.
Member of the steering committee of CAI-RN, the French interdisciplinary network in archaeometry,
Invited editor of the special issue Variations of the Earth’s magnetic field as revealed by archaeological baked clays : contribution of archaeomagnetism to geomagnetism and archaeology in Physics of the Earth and Planetary Interiors (2020-2021)