Recherche - Archive ouverte HAL Accéder directement au contenu

Filtrer vos résultats

36 résultats
Image document

Lake Chad sedimentation and environments during the late Miocene and Pliocene: New evidence from mineralogy and chemistry of the Bol core sediments

Abderamane Moussa , Alice Novello , Anne-Elisabeth Lebatard , Alain Decarreau , Claude Fontaine , et al.
Journal of African Earth Sciences, 2016, 118, pp.192-204. ⟨10.1016/j.jafrearsci.2016.02.023⟩
Article dans une revue hal-01716155v1

PP24C-08: Plio-Pleistocene evolution of seasonality in the context of past- monsoons revealed by a new proxy based on coccolith morphometry

Luc L Beaufort , C. T. Bolton , Jean-Charles Mazur, , Yves Gally
AGU Fall Meeting 2018, Dec 2018, Washington DC, United States
Communication dans un congrès hal-02409244v1
Image document

Diatom, phytolith, and pollen records from a 10Be/9Be dated lacustrine succession in the Chad basin : insight on the Miocene–Pliocene paleoenvironmental changes in Central Africa

Alice Novello , Anne-Elisabeth Lebatard , Abderamane Moussa , Doris Barboni , Florence Sylvestre , et al.
Palaeogeography, Palaeoclimatology, Palaeoecology, 2015, 430, pp.85-103. ⟨10.1016/j.palaeo.2015.04.013⟩
Article dans une revue hal-01691621v1

Deglacial Paleo−ENSO Dynamics Using Individual Foraminifera Morphometric Analysis

Thibault de Garidel-Thoron , Ross Marchant , Yves Gally , Jean-Charles Mazur, , Alexandre Fuentes
AGU Fall Meeting 2018, Dec 2018, Washington, United States
Poster de conférence hal-03534275v1
Image document

Direct uptake of organically derived carbon by grass roots and allocation in leaves and phytoliths: 13C labeling evidence

Anne Alexandre , Jérôme Balesdent , Patrick M Cazevieille , Claire M Chevassus-Rosset , Patrick Signoret , et al.
Biogeosciences, 2016, 13 (5), pp.1693 - 1703. ⟨10.5194/bg-13-1693-2016⟩
Article dans une revue hal-01515399v1
Image document

Springs, palm groves, and the record of early hominins in Africa

Doris Barboni , Gail Ashley , Benjamin Bourel , Hector Arraiz , Jean-Charles Mazur
Review of Palaeobotany and Palynology, 2019, 266, pp.23-41. ⟨10.1016/j.revpalbo.2019.03.004⟩
Article dans une revue hal-02099545v1
Image document

Contamination of planktonic food webs in the Mediterranean Sea: Setting the frame for the MERITE-HIPPOCAMPE oceanographic cruise (spring 2019)

Marc Tedetti , Jacek Tronczynski , François Carlotti , Marc Pagano , Sana Ben Ismail , et al.
Marine Pollution Bulletin, 2023, 189, pp.114765. ⟨10.1016/j.marpolbul.2023.114765⟩
Article dans une revue hal-04033259v1
Image document

New fossil genus and new extant species of diatoms (Stephanodiscaceae, Bacillariophyceae) from Pleistocene sediments in the Neotropics (Guatemala, Central America): adaptation to a changing environment?

Christine Paillès , Florence Sylvestre , Alain Tonetto , Jean-Charles Mazur, , Sandrine Conrod
European Journal of Taxonomy, 2020, 726, pp.1-23. ⟨10.5852/ejt.2020.726.1169⟩
Article dans une revue hal-03079507v1

Determining new C4 grass plant functional types to reflect the grass cover diversity in Africa

M Pasturel , A. Alexandre , C. Cordova , A. Wélé , A. Touré , et al.
10th international meeting on phytolith research, Sep 2016, Aix en Provence, France
Communication dans un congrès hal-03551405v1
Image document

Effects of grass leaf anatomy, development and light/dark alternation on the triple oxygen isotope signature of leaf water and phytoliths: insights for a new proxy of continental atmospheric humidity

Anne Alexandre , Elizabeth Webb , Amaelle Landais , Clément Piel , Sebastien Devidal , et al.
2019
Pré-publication, Document de travail hal-02107606v1

Towards a new proxy of continental atmospheric humidity: the triple oxygen isotopic composition of plant biosilica

A. Alexandre , S Pauchet , A Landais , C Piel , S. Devidal , et al.
AGU 2016, Dec 2016, San Francisco, United States
Communication dans un congrès hal-03550345v1

Origin, location and molecular characterization of phytolith carbon: insights for the phytolith carbon cycle.

A. Alexandre , Jérôme Balesdent , Isabelle Basile-Doelsch , Daniel Borschneck , Patrick Cazevieille , et al.
10th international meeting on phytolith research, Sep 2016, Aix en Provence., France
Communication dans un congrès hal-03552387v1

Reconstitution des variations limnologiques et environnementales au lac du Lauzet (Alpes du Sud), au cours des trois derniers siècles : contribution des diatomées

Cécile Figus , Françoise Chalié , Christine Paillès , Sandrine Conrod , Marta Garcia Molina , et al.
39ème Colloque des Diatomistes de Langue Française (ADLaF), Sep 2021, Aix-en-Provence, France
Communication dans un congrès hal-03546219v1
Image document

Diatom-oxygen isotope record from high-altitude Lake Petit (2200 m a.s.l.) in the Mediterranean Alps: shedding light on a climatic pulse at 4.2 ka

Rosine Cartier , Florence Sylvestre , Christine Paillès , Corinne Sonzogni , Martine Couapel , et al.
Climate of the Past, 2019, 15 (1), pp.253-263. ⟨10.5194/cp-15-253-2019⟩
Article dans une revue hal-02010676v1

Evolution d’un écosystème lacustre des Alpes du sud (Massif du Mercantour) depuis la fin de la dernière glaciation

Rosine Cartier , David Au Yang , Corinne Sonzogni , Christine Paillès , Abel Guihou , et al.
Quaternaire, Mar 2024, Rennes, France
Communication dans un congrès hal-04515431v1
Image document

Impact of Bolivian paleolake evaporation on the δ18O of the Andean glaciers during the last deglaciation (18.5–11.7 ka): diatom-inferred δ18O values and hydro-isotopic modeling

Benjamin Quesada , Florence Sylvestre , Françoise Vimeux , Jessica Black , Christine Paillès , et al.
Quaternary Science Reviews, 2015, 120, pp.93-106. ⟨10.1016/j.quascirev.2015.04.022⟩
Article dans une revue hal-01909526v1
Image document

The African Holocene Humid Period in the Tibesti mountains (central Sahara, Chad): Climate reconstruction inferred from fossil diatoms and their oxygen isotope composition

Abdallah Nassour Yacoub , Florence Sylvestre , Abderamane Moussa , Philipp Hoelzmann , Anne Alexandre , et al.
Quaternary Science Reviews, 2023, 308, pp.108099. ⟨10.1016/j.quascirev.2023.108099⟩
Article dans une revue hal-04227586v1

The triple oxygen isotope composition of phytoliths, a proxy of relative humidity: impact of the triple oxygen isotope composition of soil water and vegetation type

Christine Vallet-Coulomb , A. Alexandre , Clément Outrequin , Christophe Peugeot , Martine Couapel , et al.
Goldschmidt Conference, virtual, Jul 2021, Lyon, France
Communication dans un congrès hal-03549808v1
Image document

Cyclic evolution of phytoplankton forced by changes in tropical seasonality

Luc L Beaufort , Clara Bolton , Anta-Clarisse Sarr , Baptiste Suchéras-Marx , Yair Rosenthal , et al.
2020
Pré-publication, Document de travail hal-03006397v1

Carbon δ13C and oxygen δ18O isotopic composition of solid carbonates using an Isotope Ratio Infrared Spectrometer (IRIS)

Corinne Sonzogni , Laurence Vidal , Jean-Charles Mazur, , Luc L Beaufort , C. T. Bolton
SFIS2019 – 7ème congrès de la Société Française des IsotopeS, Nov 2019, Paris, France
Communication dans un congrès hal-02406522v1

Oxygen isotopes in biogenic silica and diatom assemblages from Lake Petit (2200 m a.s.l) in the Mediterranean Alps: shedding light on a climatic pulse at 4.2 kyr BP

Rosine Cartier , Florence Sylvestre , Christine Paillès , Corinne Sonzogni , Martine Couapel , et al.
IBIS Conference “Silicon, Silica and their Isotopes », May 2017, Blanes, Spain
Communication dans un congrès hal-02568646v1
Image document

The triple oxygen isotope composition of phytoliths, a new proxy of atmospheric relative humidity: controls of soil water isotope composition, temperature, CO2 concentration and relative humidity

Clément Outrequin , Anne Alexandre , Christine Vallet-Coulomb , Clément Piel , Sébastien Devidal , et al.
Climate of the Past, 2021, 17 (5), pp.1881 - 1902. ⟨10.5194/cp-17-1881-2021⟩
Article dans une revue hal-03353205v1
Image document

Effects of leaf length and development stage on the triple oxygen isotope signature of grass leaf water and phytoliths: insights for a proxy of continental atmospheric humidity

Anne Alexandre , Elizabeth Webb , Amaelle Landais , Clément Piel , Sebastien Devidal , et al.
Biogeosciences, 2019, 16 (23), pp.4613-4625. ⟨10.5194/bg-16-4613-2019⟩
Article dans une revue hal-02464804v1

Erratum: Corrigendum to “Diatom, phytolith, and pollen records from a 10Be/9Be dated lacustrine succession in the Chad basin: Insight on the Miocene–Pliocene paleoenvironmental changes in Central Africa” (Palaeogeography, Palaeoclimatology, Palaeoecology (2015) 430 (85–103) (S003101821500214X) (10.1016/j.palaeo.2015.04.013))

A. Novello , A.-E. Lebatard , A. Moussa , Doris Barboni , F. Sylvestre , et al.
Palaeogeography, Palaeoclimatology, Palaeoecology, 2016, 442, pp.128. ⟨10.1016/j.palaeo.2015.11.007⟩
Article dans une revue hal-01458853v1
Image document

A diatom-based predictive model for inferring past conductivity in Chadian Sahara lakes

Remadji Rirongarti , Florence Sylvestre , Françoise Chalié , Christine Paillès , Jean-Charles Mazur, , et al.
Journal of Paleolimnology, 2023, 69 (3), pp.231-248. ⟨10.1007/s10933-022-00270-9⟩
Article dans une revue hal-03850842v1
Image document

New highlights of phytolith structure and occluded carbon location: 3-D X-ray microscopy and NanoSIMS results

A. Alexandre , Isabelle Basile-Doelsch , T. Delhaye , D. Borschneck , Jean-Charles Mazur, , et al.
Biogeosciences, 2015, 12 (3), pp.863-873. ⟨10.5194/bg-12-863-2015⟩
Article dans une revue hal-01909519v2
Image document

Cyclotella petenensis and Cyclotella cassandrae, two new fossil diatoms from Pleistocene sediments of Lake Petén-Itzá, Guatemala, Central America

Christine Paillès , Florence Sylvestre , Jaime Escobar , Alain Tonetto , Sybille Rustig , et al.
Phytotaxa, 2018, 351 (4), pp.247-263. ⟨10.11646/phytotaxa.351.4.1⟩
Article dans une revue hal-02013950v1

Les diatomées lacustres du Trou au Natron (Tibesti, Tchad) : nouvelles perspectives sur le climat du Sahara à l'Holocène

Abdallah Nassour Yacoub , Florence Sylvestre , Abderamane Moussa , Philipp Hoelzmann , Michele Dinies , et al.
27e édition de la Réunion des Sciences de la Terre, SGF, CNRS, Laboratoire de Géologie de Lyon ou l’étude de la Terre, des planètes et de l’environnement, Nov 2021, Lyon, France
Communication dans un congrès hal-03588048v1
Image document

The triple oxygen isotope composition of phytoliths as a proxy of continental atmospheric humidity: insights from climate chamber and climate transect calibrations

Anne Alexandre , Amaelle Landais , Christine Vallet-Coulomb , Clément C. Piel , Sebastien Devidal , et al.
Biogeosciences, 2018, 15 (10), pp.3223 - 3241. ⟨10.5194/bg-15-3223-2018⟩
Article dans une revue hal-01909483v1
Image document

Examination of the parameters controlling the triple oxygen isotope composition of grass leaf water and phytoliths at a Mediterranean site: a model–data approach

Claudia Voigt , Anne Alexandre , Ilja M Reiter , Jean-Philippe Orts , Christine Vallet-Coulomb , et al.
Biogeosciences, 2023, 20 (11), pp.2161-2187. ⟨10.5194/bg-20-2161-2023⟩
Article dans une revue hal-04304247v1