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Les membres de l’AFEQ-CNF INQUA bien présents au prochain colloque INQUA (Dublin 2019) !

Pas moins de 9 sessions  portées par des membres de l’AFEQ-CNF INQUA ont été retenues pour le prochain colloque de l’INQUA, du 25 au 31 juillet 2019. Une large palette de thématiques sont représentées, témoignant du dynamisme et de la diversité de notre association. Pensez à soumettre vos résumé avant le 9 janvier 2019 !

 


Southern Hemisphere Assessment of PalaeoEnvironments (SHAPE)

Andrew Lorrey (National Institute of Water and Atmospheric Research, New Zealand)

Brian Chase* (Centre Nationale de la Recherche Scientifique, Institut des Sciences de l’Evolution-Montpellier, Université de Montpellier, France)

Maisa Rojas (Universidad de Chile)

Steven Phipps (University of Tasmania, Australia)

The research aligned to the PALCOM International Focus group SHAPE has sought to reconstruct atmospheric and oceanic circulation patterns and climate dynamics through glacial-interglacial cycles using both proxy data and climate model simulations. Regional and intra-hemispheric collaborations that have started in SHAPE have gathered information from spatially-distributed climate reconstructions and revealed important patterns and dynamics in the global circulation system. In this session, we will focus particularly on work that has refined our understanding of the behaviour of key Southern Hemisphere climate modes and used integrative approaches and model simulations to understand regional observations, triggers of climate change, climate dynamics, and mechanisms of intra- and inter-hemispheric climate teleconnections from a holistic Southern Hemisphere or global perspective. This session welcomes all presentations regarding proxy development, tools and techniques, key findings, data syntheses and modelling results relating to Southern Hemisphere Quaternary climate change.


Orbital and millennial scale climate changes in ice, ocean and land: observations and model simulations

Maria Fernanda Sanchez Goñi* (EPHE, PSL University &UMR 5805 EPOC, University of Bordeaux, France)

André Bahr (Institute of Earth Sciences, University of Heidelberg, Germany)

Nathaelle Bouttes (LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris – Saclay, France)

Integrating long paleoclimatic series from different Earth’s archives is crucial for understanding the mechanisms of climatic changes during the Quaternary. First, this integration documents the nature and timing of the different regional environmental responses to a given climate change; secondly, it provides an array of hypotheses against which to benchmark model experiments. In this session we invite presentations dealing with major and still-unresolved questions in Quaternary climates such as: a) what is the regional response of the different glacial-interglacial cycles?; b) what is the potential contribution of the different internal feedbacks in explaining the Middle Pleistocene Transition?; c) what are the mechanisms explaining the Mid-Brunhes Event in CO2 concentrations with lower values during interglacials before, compared to after, 430 ka?; or d) are the interactions between millennial and orbital climate variability the potential missing piece in the puzzle of Ice Age cycles?


Multiproxy studies on continental carbonates: palaeoclimates and palaeoenvironments

Julie Dabkowski* (Laboratoire de Géographie Physique – UMR CNRS 8591, Meudon, France)

Charlotte Prud’Homme* (Research Group of Terrestrial Palaeoclimates, Max Planck Institute for Chemistry, Mainz, Germany)

Eric Verrecchia* (Institute of Earth Surface Dynamics, University of Lausanne, Switzerland)

Continental carbonates have been extensively studied during the last few decades as supports for multidisciplinary palaeoclimatic and palaeoenvironmental research. Most efforts have been concentrated on speleothems, but investigations on tufa, travertine, lacustrine, palustrine, soil, and biogenic (shells, earthworm granules, etc.) carbonates are also rapidly developing with improved and new technologies. Continental carbonates are highly suitable for combining geochemical approaches (e.g. stable isotopes) with direct dating on calcite (14C, U-Th series, ESR) or grains embedded in calcite (OSL). Additionally, in most cases, bioproxies (pollen, molluscs, leaf imprint, etc.) usually associated with these carbonates allow synergic and independent palaeoenvironmental investigations.

The present session aims to illustrate the wide diversity of climatic and environmental data obtained from carbonates in continental archives. Contributions presenting multidisciplinary approaches are highly welcome. Continental carbonates from any kind of crystallisation processes (physicochemical/biological) or environments (open-air, karst, soils, thermal or meteoric water, etc.) should be represented. Finally, we encourage authors to discuss their own data regarding other regional to globally significant records, which would highlight the important contribution of continental carbonate studies to the understanding of past climate and environment dynamics.


Are Heinrich Stadials cooling or warming events, or both?

Gordon Bromley (National University of Ireland, Galway)

Samuel Toucanne* (Ifremer, Centre Bretagne)

Stephen Barker (Cardiff University)

Heinrich stadials are an intrinsic feature of Earth’s climate system and are associated with large-scale, typically rapid shifts in temperature, precipitation, ocean circulation, and atmospheric chemistry. In the North Atlantic Ocean, these events are also characterised by the deposition of ice-rafted ‘Heinrich layers’. Thanks in large part to the methodologic refinement of palaeoclimate proxies, the last decade has seen a remarkable increase in the spatial coverage and quality of climate data pertaining to Heinrich stadials, particularly those during the last glacial maximum and termination. In the Southern Hemisphere, and potentially also the tropics, Heinrich stadials appear to have been distinct warming events marked by massive deglaciation and ocean-surface heating. In contrast, the prevailing view from the Northern Hemisphere is one of Heinrich stadial cooling, linked to weakening of the Atlantic meridional overturning circulation. Yet emerging data from both the marine and terrestrial realms hint at elements of boreal stadial warmth, raising the question of whether Heinrich stadials in these latitudes are also periods of amplified seasonality.

The goal of this session is to bring together the latest terrestrial and marine data from key sites in order to review, holistically, our understanding of Heinrich stadials as abrupt climate change events: how they are manifest, and the driving processes involved. Our particular emphasis is on the most recent stadial events, for which data are generally most abundant, but we stress the temporal and geographic scope of this session is broad. Ultimately, we aim to foster a new discussion on the impact and causes of Heinrich stadials, based around well-dated palaeoclimate records and taking into account both the marine and terrestrial contexts.

Following the meeting, it is our intention to publish a special volume based on this session in Quaternary International (or Paleoceanography & Paleoclimate?).


Earthquake Geology and Seismic Hazards: from Earthquake Mapping of historical and prehistoric earthquakes to paleoseismology

Ioannis Papanikolaou, Stéphane Baize*, Christoph Grützner

This session, supported by the IFG on Earthquake Geology and Seismic Hazards, encourages contributions dealing with multidisciplinary approaches (fault trenching, geophysics, remote sensing, dating, etc.) applied to earthquake geology, paleoseismology, and fault specific seismic hazard assessment. Geological approaches are very important because they provide insights on the long-term behavior of fault-networks, a keystone of seismic hazard studies. Quantitative assessments include geologically recorded slip rates, earthquake time history and magnitude of large paleo-events. Earthquake geology is also the key approach to analysis of surface faulting hazard that could threaten facilities or infrastructures. Recent techniques and developments allow the quantification of the overall surface deformation during historical and recent surface-breaking earthquakes, contributing to the improvement of future Fault Displacement Hazard analyses. This session will particularly examine: i) how to improve the capability of the recognition and characterization of Quaternary capable faults, ii) how to strengthen our knowledge of the relation between surface faulting produced by earthquakes vs earthquake sizes and earthquake fault parameters, both being key aspects in Ground Shaking estimation iii) upgrade the existing EEE (Earthquake Environmental Effects) database.


The European Loess Belt – a high-resolution archive of rapid environmental change

Pierre Antoine* (Laboratoire de Géographie Physique – UMR CNRS 8591, Meudon, France)

Ludwig Zöller* (Lehrstuhl Geomorphologie Universitaet Bayreuth, Germany)

Detecting rapid climate changes during the Last Glacial in Greenland ice cores (D-O cycles) has generated major research efforts during the last 20 years to evidence their impact on European environments using sedimentary archives and especially loess-palaeosol records. Indeed, the great European Loess Belt is ideally located with respect to the Ice sheets and the North Atlantic Ocean to record this impact in both loess and palaeosols. In this context it has been proposed in 2001 to focus on a transect through the northern branch of the European loess belt during the INQUA-SEQS meeting in Kyiv.

High-resolution pedostratigraphic approaches coupled with sedimentological analysis (especially particle grain-size), led to the discovery of millennial-scale cyclic loess-palaeosols alternations correlated to Greenland stadial-interstadials cycles. Moreover, several horizons of periglacial structures were observed within loess series testifying of at least four permafrost development and degradation phases between about 60 and 20 ka.

The session will gather presentations and posters focusing on:

1) High resolution stratigraphy and reconstruction of palaeoenvironmental conditions combining multi-proxy approaches of the best loess-palaeosol sequences: sedimentology, bio-indicators, soil geochemistry, organic biomarkers, environmental magnetism, periglacial features …

2) Updating the geochronological frame by coupling luminescence and 14C dating methods, focusing especially on new developments in dating techniques.

3) Developments in data-model (numerical) comparisons to test palaeoclimate configurations leading to stadial-interstadial successions and phases of permafrost development and decrease (ice-sheets, sea surface conditions, wind power and directions …).

4) Understanding the impact of climate change on Palaeolithic peopling of the great European loess plain.


Heinrich events in Terrestrial archives

Dominik Faust* (TU Dresden, Germany)

Hartmut Heinrich (10° E maritime consulting)

Pierre Antoine* (Laboratoire de Géographie Physique – UMR CNRS 8591, Meudon, France)

Heinrich events were catastrophic collapses of continental ice sheets during glacial periods. At that time, vast quantities of icebergs more or less periodically calved into the North Atlantic, causing an interruption of the oceanic heat conveyor belt leading to dramatic changes of the climate on a global scale for a period of several hundreds of years. They are not only an interesting paleo-climatological phenomenon but also a stratigraphic and diagnostic tool for climate and environmental reconstructions.

Linking evidences on rapid climate changes in terrestrial archives to similar marine phenomena such as Heinrich Events is challenging. The session aims to transfer knowledge obtained from marine records unto the land surface. We invite contributions that aim to bridge between disciplines. We especially ask young researchers to present their ideas.

 

The session will be opened by a keynote talk:

Heinrich events – sources of abrupt climatic changes by Hartmut Heinrich


The Future of Quaternary Geochronology
Paula Reimer Manfred Frechen, Geoff Duller, Mathieu Duval*, Kirsty Penkman, Gilles Rixhon, Katrin Lasberg, Yan Li

Many of the techniques utilised in Quaternary geochronology have evolved in recent years allowing higher precision, longer timescales or wider ranging applications. Intercomparison exercises and re-measurement of standards have enhanced the accuracy. In addition new methods for calculating ages from raw measurements have been developed, as well as the incorporation of associated information (e.g. stable isotopes, sediment properties, models of the underlying system, etc.) into statistical models to provide improved corrections or interpretation of results. This session will highlight current and potential advances in geochronological techniques over the entire range of the Quaternary as well as novel or complex applications and integration of records and timescales using these methods.


Quaternary data without frontiers: the International Quaternary Map of Europe 1 : 2.5 Million

Kristine Asch and Philip Gibbard*

The International Quaternary Map of Europe is an international cooperation project , coordinated by BGR, that began at 2011 at INQUA in Bern. There are by now 31 national geological surveys (including Russia) participating  together with a supporting board of academic advisors  contributing to this project.

This map is coordinated and compiled at BGR in international cooperation under the umbrella of CGMW and INQUA.

Subjects to be addressed encompass e.g. onshore/-off shore mapping, glacial extent, glaciated versus non-glaciated areas, regional characteristics, mountains and lowlands, standards and rationalization of terminology, active faults, critical palaeontological and Palaeolithic sites, permafrost distribution, isostacy, direction of ice movements, etc.

 

*adhérent·e·s de l’AFEQ-CNF INQUA

INQUA 2019 – Dublin, Ireland

Le prochain colloque de l’INQUA se tiendra du 25 au 31 juillet 2019 à Dublin. L’occasion pour la communauté internationale de se retrouver. Les chercheurs français y seront bien représentés et notamment l’AFEQ-CNF INQUA avec au moins 9 sessions portées par des membres de l’association !

La date limite de soumission des résumés est le 9 janvier 2019.

Retrouvez toutes les infos sur le site du colloque: http://www.inqua2019.org/

 

Assemblée Générale et élections du Conseil d’Administration 2018

Conformément aux statuts de l’AFEQ-CNF INQUA, des élections auront lieu cette année en vue du renouvellement du Conseil d’Administration, lors de la prochaine Assemblée Générale qui se tiendra le 11 mai 2018 à Barcelonnette pendant l’excursion.

Les adhérent·e·s sont invité·e·s à voter :
– par correspondance avant le 30 avril,
– sur place, soit en propre, soit par procuration.

Pensez à réglez votre cotisation 2018 (si ce n’est pas déjà fait) pour que votre vote soit bien pris en compte !!! Le règlement doit être envoyé à notre trésorier.

Si vous êtes adhérent·e et n’avez pas reçu votre matériel de vote par mail, contactez notre secrétaire (sylvie.coutard@inrap.fr).

 

Prix de thèse AFEQ – CNF INQUA 2018 exceptionnellement décerné à deux jeunes docteures ex-aequo

Le prix de thèse AFEQ – CNF INQUA 2018 a été remis par Franck Bassinot, président de l’association, lors du colloque Q11 à Orléans.

Cette année, exceptionnellement, deux candidates se partagent ce prix:

  • Charlotte PRUD’HOMME pour son travail intitulé : « Les granules de calcite de vers de terre, un support innovant pour la reconstitution du paléoclimat du Dernier Glaciaire en milieu loessique en milieu loessique européen: Application à l’étude des interactions Homme-environnement au Paléolithique« .

email: c.prudhomme@mpic.de

Remise du prix de thèse à Charlotte PRUD’HOMME par Franck BASSINOT.

 

  • Marion CORNUAULT pour son travail sur le « Traçage des masses d’eau en Méditerranée orientale depuis la dernière période glaciaire : approches isotopique (ƐNd, isotopes stables) et
    micropaléontologique (foraminifères benthiques)« .

email: marine.cornuault@gmail.com

La « L’Oréal Portugal Medals of Honor for Women in Science » remise à Dulce Oliveira

Prix L’OREAL Portugal de la « Jeune Scientifique de l’année 2018 » attribuée au Dr. Dulce Oliveira pour sa thèse intitulée  « Comprendre les périodes chaudes avant et après la transition du Pléistocène moyen (MIS 31 et MIS 11) dans la péninsule Ibérique » réalisée au sein de l’école doctorale Sciences et environnements sous la direction de Maria-Fernanda Sanchez-Goni (DR EPHE – UMR 5805 EPOC) et co-encadrée par Stéphanie Desprat (MC EPHE – UMR 5805 EPOC).

Dulce Oliveira (deuxième en partant de la gauche) à la remise de la médaille L’Oréal Portugal.

Dulce avait bénéficié du soutien de l’AFEQ-CNF INQUA au cours de sa thèse (subvention-colloque).

XVe Congrès PanAfricain d’rchéologie, de Préhistoire et Disciplines Associées, Rabat 2018

L’Association PanAfricaine d’Archéologie, de Préhistoire et Disciplines Associées (PanAf), lors de son 14e Congrès tenu en 2014 à Johannesburg en Afrique du Sud, a voté à l’unanimité pour désigner le Royaume du Maroc comme hôte pour son 15e Congrès prévu en 2018. L’Université Mohammed V à Rabat, L’Institut National des Sciences d’Archéologie et du Patrimoine (INSAP) à Rabat, et l’Université Mohammed 1er à Oujda, ont dès lors l’honneur et le plaisir de vous annoncer l’organisation du 15e Congrès de l’Association.

Cette manifestation se tiendra du 10 au 14 septembre 2018 à Rabat, capitale du Royaume du Maroc et ville classée patrimoine mondial de l’Humanité. Ce 15e Congrès est le premier congrès de l’association organisé au Maroc, et le deuxième organisé en Afrique du Nord, le précédent s’étant tenu à Alger en 1952. Il se déroulera dans le contexte des toutes nouvelles découvertes effectuées au Maroc, à Jebel Irhoud, lesquelles ont mis au jour le plus ancien Homo sapiens actuellement connu au monde, vieux de 300 000 ans (Hublin, Ben-Ncer et al., Nature, 2017). Le Maroc, et le Maghreb avec lui, se retrouvent au centre des débats sur l’origine de l’homme moderne et son émergence, qui est un phénomène panafricain.

Site Web: http://panaf18.fsoujda.org/fr/presentation/

Listes des sessions thématiques accéptées: ici!