Change in dust variability in the Atlantic sector of Antarctica at the end of the last deglaciation

We present a Rare Earth Elements (REE) record determined on the EPICA ice core drilled at Dronning Maud Land (EDML) in the Atlantic sector of the East Antarctic Plateau. The record covers the transition from the last glacial stage (LGS) to the early Holocene (26 600–7500 yr BP) at decadal to centennial resolution. Additionally, samples from potential source areas (PSAs) for Antarctic dust were analyzed for their REE characteristics. The dust provenance is discussed by comparing the REE fingerprints in the ice core and the PSA samples. We find a shift in variability in REE composition at ~15 000 yr BP in the ice core samples. Before 15 000 yr BP, the dust composition is very uniform and its provenance was most certainly dominated by a South American source. After 15 000 yr BP, multiple sources such as Australia and New Zealand become relatively more important, although South America remains the major dust source. A similar change in the dust characteristics was observed in the EPICA Dome C ice core at around ~15 000 yr BP, accompanied by a shift in the REE composition, thus suggesting a change of atmospheric circulation in the Southern Hemisphere.

[1]  R. Rudnick,et al.  Composition of the Continental Crust , 2014 .

[2]  N. Mahowald,et al.  Model insight into glacial–interglacial paleodust records , 2011 .

[3]  M. Frezzotti,et al.  Aeolian dust in the Talos Dome ice core (East Antarctica, Pacific/Ross Sea sector): Victoria Land versus remote sources over the last two climate cycles , 2010 .

[4]  A. Bory,et al.  Multiple sources supply eolian mineral dust to the Atlantic sector of coastal Antarctica: Evidence from recent snow layers at the top of Berkner Island ice sheet , 2010 .

[5]  M. Norman,et al.  Lead isotopic evidence for an Australian source of aeolian dust to Antarctica at times over the last 170,000 years , 2010 .

[6]  H. Fischer,et al.  A major glacial-interglacial change in aeolian dust composition inferred from Rare Earth Elements in Antarctic ice , 2010 .

[7]  M. Frezzotti,et al.  Geographic provenance of aeolian dust in East Antarctica during Pleistocene glaciations: preliminary results from Talos Dome and comparison with East Antarctic and new Andean ice core data , 2010 .

[8]  P. Gabrielli,et al.  Lead isotopic compositions in the EPICA Dome C ice core and Southern Hemisphere Potential Source Areas , 2010 .

[9]  B. Delmonte,et al.  Coherent composition of glacial dust on opposite sides of the East Antarctic Plateau inferred from the deep EPICA ice cores , 2009 .

[10]  David E. Sugden,et al.  Influence of Patagonian glaciers on Antarctic dust deposition during the last glacial period , 2009 .

[11]  J. Schmitt,et al.  An improved continuous flow analysis system for high-resolution field measurements on ice cores. , 2008, Environmental science & technology.

[12]  B. Delmonte,et al.  Defining the geochemical composition of the EPICA Dome C ice core dust during the last glacial‐interglacial cycle , 2008 .

[13]  P. Gabrielli,et al.  Rare earth elements determined in Antarctic ice by inductively coupled plasma--time of flight, quadrupole and sector field-mass spectrometry: An inter-comparison study. , 2008, Analytica chimica acta.

[14]  B. Delmonte,et al.  Ice magnetization in the EPICA‐Dome C ice core: Implication for dust sources during glacial and interglacial periods , 2008 .

[15]  V. Ramaswamy,et al.  Distribution, transport, and deposition of mineral dust in the Southern Ocean and Antarctica: Contribution of major sources , 2008 .

[16]  M. Bigler,et al.  Dust-climate couplings over the past 800,000 years from the EPICA Dome C ice core , 2008, Nature.

[17]  B. Delmonte,et al.  Aeolian dust in East Antarctica (EPICA‐Dome C and Vostok): Provenance during glacial ages over the last 800 kyr , 2008 .

[18]  D. Gaiero.  Dust provenance in Antarctic ice during glacial periods: From where in southern South America? , 2007 .

[19]  R. Röthlisberger,et al.  Reconstruction of millennial changes in dust emission, transport and regional sea ice coverage using the deep EPICA ice cores from the Atlantic and Indian Ocean sector of Antarctica , 2007 .

[20]  H. Fischer,et al.  Synchronisation of the EDML and EDC ice cores for the last 52 kyr by volcanic signature matching , 2007 .

[21]  H. Fischer,et al.  Soluble and insoluble lithium dust in the EPICA DomeC ice core—Implications for changes of the East Antarctic dust provenance during the recent glacial–interglacial transition , 2007 .

[22]  J. Tison,et al.  One-to-one coupling of glacial climate variability in Greenland and Antarctica. , 2006 .

[23]  F. Grousset,et al.  Eastern Australia: A possible source of dust in East Antarctica interglacial ice , 2006 .

[24]  H. Fischer,et al.  30,000 Years of Cosmic Dust in Antarctic Ice , 2006, Science.

[25]  Warren R. L. Cairns,et al.  Direct determination of rare earth elements at the subpicogram per gram level in antarctic ice by ICP-SFMS using a desolvation system. , 2006, Analytical chemistry.

[26]  P. Gabrielli,et al.  Atmospheric iron fluxes over the last deglaciation: Climatic implications , 2006 .

[27]  J. Tison,et al.  One-to-one coupling of glacial climate variability in Greenland during Ice Sheet Invasion , 2006 .

[28]  P. Gabrielli,et al.  Variations in atmospheric trace elements in Dome C (East Antarctica) ice over the last two climatic cycles , 2005 .

[29]  H. McGowan,et al.  Provenance of long‐travelled dust determined with ultra‐trace‐element composition: a pilot study with samples from New Zealand glaciers , 2005 .

[30]  V. Lipenkov,et al.  Trace elements in Vostok Antarctic ice during the last four climatic cycles [rapid communication] , 2005 .

[31]  B. Kamber,et al.  A new estimate for the composition of weathered young upper continental crust from alluvial sediments, Queensland, Australia , 2005 .

[32]  V. Lipenkov,et al.  Dust size evidence for opposite regional atmospheric circulation changes over east Antarctica during the last climatic transition , 2004 .

[33]  H. Arz,et al.  Antarctic Timing of Surface Water Changes off Chile and Patagonian Ice Sheet Response , 2004, Science.

[34]  F. Grousset,et al.  Comparing the Epica and Vostok dust records during the last 220,000 years: stratigraphical correlation and provenance in glacial periods , 2004 .

[35]  J. Probst,et al.  The signature of river- and wind-borne materials exported from Patagonia to the southern latitudes: a view from REEs and implications for paleoclimatic interpretations , 2004 .

[36]  James A. Smith,et al.  Isotopic constraints on the source of Argentinian loess – with implications for atmospheric circulation and the provenance of Antarctic dust during recent glacial maxima , 2003 .

[37]  R. Röthlisberger,et al.  Dust and sea salt variability in central East Antarctica (Dome C) over the last 45 kyrs and its implications for southern high‐latitude climate , 2002 .

[38]  M. P. Scheele,et al.  Air Parcel Trajectories and Snowfall Related to Five Deep Drilling Locations in Antarctica Based on the ERA-15 Dataset* , 2002 .

[39]  R. Röthlisberger,et al.  Technique for continuous high-resolution analysis of trace substances in firn and ice cores , 2000 .

[40]  T. Stocker,et al.  Timing of the Antarctic cold reversal and the atmospheric CO2 increase with respect to the Younger Dryas Event , 1997 .

[41]  K. H. Wedepohl,et al.  The Composition of the Continental Crust , 1995 .

[42]  A. Gaudichet,et al.  Mineralogy of insoluble particles in the Vostok Antarctic ice core over the last climatic cycle (150 kyr) , 1988 .

[43]  A. Gaudichet,et al.  An investigation by analytical transmission electron microscopy of individual insoluble microparticles from Antarctic (Dome C) ice core samples , 1986 .