A5024570541- Geology and Paleoclimatology Research
- Geological Studies and Exploration
- Hydrocarbon exploration and reservoir analysis
- Methane Hydrates and Related Phenomena
- Geological formations and processes
- Geological and Geophysical Studies
- Pleistocene-Era Hominins and Archaeology
- Archaeology and ancient environmental studies
- Isotope Analysis in Ecology
- Tree-ring climate responses
- Cryospheric studies and observations
- Aeolian processes and effects
- Paleontology and Stratigraphy of Fossils
- Marine and environmental studies
- Archaeological and Geological Studies
- Image Processing and 3D Reconstruction
- Maritime and Coastal Archaeology
- Lichen and fungal ecology
- Marine and coastal ecosystems
- Archaeological and Historical Studies
- Geological Modeling and Analysis
- Mediterranean and Iberian flora and fauna
- Climate variability and models
- Geological and Geophysical Studies Worldwide
- Planetary Science and Exploration
École Pratique des Hautes Études
2015-2025
Université Paris Sciences et Lettres
2016-2025
Université de Bordeaux
2014-2024
Environnements et Paléoenvironnements Océaniques et Continentaux
2013-2024
Centre National de la Recherche Scientifique
2008-2024
Institut Polytechnique de Bordeaux
2024
Laboratoire des Sciences du Climat et de l'Environnement
2007-2010
Woods Hole Oceanographic Institution
2008-2009
Abstract Rapid changes in ocean circulation and climate have been observed marine-sediment ice cores over the last glacial period deglaciation, highlighting non-linear character of system underlining possibility rapid shifts response to anthropogenic greenhouse gas forcing. To date, these are still not fully explained. One obstacle hindering progress our understanding interactions between past is difficulty accurately dating marine cores. Here, we present a set 92 sediment from Atlantic...
Abstract. On the basis of a multi-proxy approach and strategy combining lacustrine marine records along north–south transect, data collected in central Mediterranean within framework collaborative project have led to reconstruction high-resolution well-dated palaeohydrological assessment their spatial temporal coherency. Contrasting patterns changes been evidenced Mediterranean: south (north) around 40° N latitude, middle part Holocene was characterised by lake-level maxima (minima), during...
Abstract. High-temporal resolution pollen record from the Alboran Sea ODP Site 976, pollen-based quantitative climate reconstruction and biomisation show that changes of Mediterranean vegetation have been clearly modulated by short long term variability during last 25 000 years. The reliability marine spectra has tested using 22 core-top samples Mediterranean. 976 climatic confirm environments a rapid response to fluctuations Termination. western appears nearly synchronous with North...
Although grassland and savanna occupy only a quarter of the world's vegetation, burning in these ecosystems accounts for roughly half global carbon emissions from fire. However, processes that govern changes are poorly understood, particularly on time scales beyond satellite records. We analyzed microcharcoal, sediments, geochemistry high-resolution marine sediment core off Namibia to identify have controlled biomass southern African under large, multimillennial-scale climate changes. Six...
Abstract. Despite a large number of studies, the long-term and millennial to centennial-scale climatic variability in Mediterranean region during last deglaciation Holocene is still debated, including southern Central Mediterranean. In this paper, we present new marine pollen sequence (core MD04-2797CQ) from Siculo-Tunisian Strait documenting regional vegetation changes Holocene. The MD04-2797CQ shows that semi-desert plants dominated vegetal cover between 18.2 12.3 ka cal BP, indicating...
Research Article| July 01, 2012 European climate optimum and enhanced Greenland melt during the Last Interglacial Maria Fernanda Sánchez Goñi; Goñi * 1EPHE, UMR-CNRS 5805 EPOC, Université Bordeaux 1, Avenue des Facultés 33405 Talence, France *E-mail: mf.sanchezgoni@epoc.u-bordeaux1.fr. Search for other works by this author on: GSW Google Scholar Pepijn Bakker; Bakker 2Department of Earth Sciences, Section Climate Change Landscape Dynamics VU, University Amsterdam, Netherlands Stéphanie...
Abstract. Climate evolution of the Mediterranean region during Holocene exhibits strong spatial and temporal variability, which is notoriously difficult for models to reproduce. We propose here a new proxy-based climate synthesis its comparison – at regional (∼ 100 km) level with model examine (i) opposing northern southern precipitation regimes (ii) an east-to-west dipole across basin. Using estimates inferred from marine terrestrial pollen archives, we focus on early mid-Holocene (8000...
High-temporal resolution analysis of different climatic tracers (pollen, foraminiferal-based winter sea surface temperature (SST), benthic foraminiferal δ 18 O) from marine core MD95-2042, retrieved off SW Iberia, allows us to directly compare, without any chronological ambiguity, Mediterranean vegetation and eastern North Atlantic SST changes for the last 14.2 kyr. We identify on land in ocean several phases such as end warm humid Bølling–Allerød, cold dry Younger Dryas, Holocene with...
Abstract Climatic variability of Marine Isotope Stage (MIS) 11 is examined using a new high-resolution direct land—sea comparison from the SW Iberian margin Site U1385. This study, based on pollen and biomarker analyses, documents regional vegetation, terrestrial climate sea surface temperature (SST) variability. Suborbital revealed by series forest decline events suggesting repeated cooling drying episodes in Iberia throughout MIS 11. Only most severe land are coeval with SST decreases,...
Abstract. The Eurasian (née European) Modern Pollen Database (EMPD) was established in 2013 to provide a public database of high-quality modern pollen surface samples help support studies past climate, land cover, and use using fossil pollen. EMPD is part of, complementary to, the European (EPD) which contains data on found Late Quaternary sedimentary archives throughout region. EPD turn rapidly growing Neotoma database, now primary home for global palaeoecological data. This paper describes...
Abstract. A multiproxy study – coupling mineralogical, grain size and geochemical approaches was used to tentatively retrace eolian fluvial contributions sedimentation in the Sicilian–Tunisian Strait since last glacial. The supply is dominant over whole interval, excepted during sapropel S1 when riverine contribution apparently became significant. Saharan increased Bølling–Allerød, evidencing persistence of aridity North Africa although northern Mediterranean already experienced moister...
Abstract. Quaternary records provide an opportunity to examine the nature of vegetation and fire responses rapid past climate changes comparable in velocity magnitude those expected 21st-century. The best documented examples change are warming events associated with Dansgaard–Oeschger (D–O) cycles during last glacial period, which were sufficiently large have had a potential feedback through albedo greenhouse gas emissions on climate. Previous reconstructions D–O used independently...
Abstract. We present a new high-resolution marine pollen record from NW Iberian margin sediments (core MD03-2697) covering the interval between 340 000 and 270 years ago, time period centred on Marine Isotope Stage (MIS) 9 characterized by particular baseline climate states. This study enables documentation of vegetation changes in north-western Peninsula therefore terrestrial climatic variability at orbital millennial scales during MIS 9, directly stratigraphy. Suborbital Iberia response to...