Laurence Le Callonnec

ORCID: 0000-0002-9887-8086
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About
Contact & Profiles
Research Areas
  • Paleontology and Stratigraphy of Fossils
  • Geology and Paleoclimatology Research
  • Geological and Geophysical Studies Worldwide
  • Geological formations and processes
  • Hydrocarbon exploration and reservoir analysis
  • Offshore Engineering and Technologies
  • Geochemistry and Elemental Analysis
  • Methane Hydrates and Related Phenomena
  • Drilling and Well Engineering
  • Geological and Geochemical Analysis
  • Pleistocene-Era Hominins and Archaeology
  • Analytical Chemistry and Sensors
  • Geochemistry and Geologic Mapping
  • Evolution and Paleontology Studies
  • Diatoms and Algae Research
  • Reservoir Engineering and Simulation Methods
  • Hydraulic Fracturing and Reservoir Analysis
  • Soil erosion and sediment transport
  • Geological and Geophysical Studies
  • Non-Destructive Testing Techniques
  • Marine and environmental studies
  • Isotope Analysis in Ecology
  • Water Quality Monitoring and Analysis
  • Water management and technologies
  • Mediterranean and Iberian flora and fauna

Institut des Sciences de la Terre de Paris
2009-2023

Sorbonne Université
2002-2023

Institute of Paleoprimatology Human Paleontology Evolution and Paleoenvironments
2023

Centre National de la Recherche Scientifique
2005-2022

Sorbonne Paris Cité
2020

Université Paris Cité
2008-2009

National Oceanography Centre
2000

Bureau de Recherches Géologiques et Minières
1998

The Early Toarcian was characterized by two large perturbations to the carbon cycle: a positive trend associated with increased organic matter burial and ocean anoxia, pronounced negative isotope excursion (CIE). We contrast geochemical evolution in carbonate phases of successions: one from Paris Basin (Sancerre core, comprising black shales), other Lusitanian (Peniche section very minor lithological expression bottom water anoxia). Our aim identify whether these cycle were related,...

10.1029/2009pa001764 article EN Paleoceanography 2009-11-05

For decades, Mesozoic tectono-halokinetic structures have been increasingly recognized in the peripheral French alpine basins. However, reconstructing full history and mechanisms of halokinesis during these regions remains challenging due to overprinting effects Cenozoic compressive tectonics, which erased much evidences earlier deformations.This severely limits our understanding interplay between diapirism, sedimentary processes basins, role pre-compressional inheritances shaping internal...

10.5194/egusphere-egu25-10551 preprint EN 2025-03-14

The Eocene-Oligocene Transition (‘EOT’) marks a global deterioration in climate associated with the establishment of Antarctic polar ice cap, but is poorly constrained continental areas. In Europe, marked seasonality and major replacement European flora fauna by Asian species (the ‘Grande Coupure’ described Stehlin, 1909) were recorded during this period. Deposits at ocean-continent interface are Paris Basin EOT, from lagoon-marine to lacustrine...

10.5194/egusphere-egu25-8616 preprint EN 2025-03-14

The Bat oasis is located in the valley of Wadi al Hijr, western piedmont Hajar Mountains. Occupied since Neolithic period, archaeological complex well-known for its Bronze Age funerary and domestic structures related to first Oman has been classified as a UNESCO World Heritage Site. While central beginning be well studied, there scarce information on network with peripheral sites local-scale environmental change across mid- late Holocene. sediment-filled depression Rakhat Madrh, c. 7.5 km NE...

10.5194/egusphere-egu25-465 preprint EN 2025-03-14

Abstract. In order to understand the significance of worldwide deposition black shale facies in Early Toarcian (~ 183 Ma), considerable attention has been drawn this Jurassic sub-stage over last 3 decades. The discovery a pronounced negative carbon isotope excursion (CIE) within shales disrupting generally positive trend isotopes stimulated many studies, particularly with view establish local versus global nature major geochemical phenomenon. Here we document sedimentological and...

10.5194/se-5-793-2014 article EN cc-by Solid Earth 2014-08-06

Abstract Well exposed and stratigraphically well constrained by numerous studies, the Zumaia section is one of best places to conduct studies on Palaeocene in basin facies. Thus, this has been chosen [Schmitz et al., 2011] as a stratotype Selandian basal terminal limits (GSSP: Global boundary Stratotype Section Point). The sediments consist carbonate hemipelagites interbedded with fine (Maastrichtian Selandian) siliciclastic (Thanetian Eocene) turbidites. purpose work geochemically...

10.2113/gssgfbull.185.6.413 article EN BSGF – Earth Sciences Bulletin 2014-06-01

The first centuries AD in the Mediterranean region have generally been associated with a warm, stable climate. High-resolution sedimentary archives sensitive to local environmental change are needed switch from this general frame regional scale. Similarly cave speleothems, laminated carbonate deposits can grow channels of aqueducts which transported water karstic springs during Roman period. aqueduct Nîmes (SE France) exceptional since they may represent several paleoenvironmental record...

10.1038/s41598-019-41620-4 article EN cc-by Scientific Reports 2019-03-26

A chemostratigraphic study (δ 13 C and δ 18 O) of the Late Cenomanian Turonian chalk succession from “Craie 701” Poigny borehole (near Provins in Paris Basin, France) provides new high-resolution stable carbon oxygen isotope data. Correlation bentonite horizons isotopic trends with its English Chalk equivalent allows development a precise stratigraphic framework. O variations are synchronous widespread throughout European epicontinental seas Tethyan Ocean. In borehole, Oceanic Anoxic Event 2...

10.1051/bsgf/2020026 article EN cc-by BSGF – Earth Sciences Bulletin 2020-06-29

Abstract. In order to understand the significance of worldwide deposition black shale facies in Early Toarcian (~ 183 Ma), considerable attention has been drawn this Jurassic sub-Stage over last three decades. The discovery a pronounced negative carbon isotope excursion (CIE) within shales disrupting generally positive trend isotopes stimulated many studies, particularly with view establish local vs. global nature major geochemical phenomenon. Here we document sedimentological and...

10.5194/sed-6-1073-2014 preprint EN cc-by 2014-04-16
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