Holocene dust in East Antarctica: Provenance and variability in time and space

• Published in: The Holocene
• Main Authors: Delmonte, Barbara, Winton, Holly, Baroni, Mélanie, Baccolo, Giovanni, Hansson, Margareta, Andersson, Per, Baroni, Carlo, Salvatore, Maria Cristina, Lanci, Luca, Maggi, Valter
• Other Authors: Dipartimento di Scienze dell'Ambiente e del Territorio (DISAT), Università degli Studi di Milano = University of Milan (UNIMI), Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Department of Physical Geography and Quaternary Geology, Stockholm University, Swedish Museum of Natural History (NRM), SYNTHESYS project SE-TAF-5636, 'Friends of the Museum' Grant; Franco-Italian project SOLARICE IPEV1145, PNRA16_00008
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2019
• Subjects: dust stratigraphy; East Antarctica; Holocene; ice cores; provenance; dust; [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; Antarctic; Transantarctic Mountains; Antarc*; Antarctica
• Online Access: https://hal.science/hal-02292942; https://doi.org/10.1177/0959683619875188

International audience In this paper, we provide a comprehensive overview of the state-of-knowledge of dust flux and variability in time and space in different sectors of East Antarctica during the Holocene. By integrating the literature data with new evidences, we discuss the dust flux and grain-size variability during the current interglacial and its provenance in the innermost part of the East Antarctic plateau as well as in peripheral regions located close to the Transantarctic Mountains. The local importance of aeolian mineral dust aerosol deflated from low-elevation areas of peripheral East Antarctica is also discussed in the light of new data from several coastal, low-elevation sites.