@article{fdi:010037668,
  title = {{E}astern {A}ustralia : a possible source of dust in {E}ast {A}ntarctica interglacial ice},
  author = {{R}evel {R}olland, {M}. and {D}e {D}eckker, {P}. and {D}elmonte, {B}. and {H}esse, {P}. {P}. and {M}agee, {J}. {W}. and {B}asile-{D}oelsch, {I}sabelle and {G}rousset, {F}. and {B}osch, {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {A}ustralian continent is characterised by an extremely variable surficial geochemistry, reflecting the varied lithology of {A}ustralian basement rocks. {S}amples representative of {A}ustralian aeolian dust have been collected in (1) regions where meteorological records, satellite observation and wind erosion modelling systems have indicated frequent dust activity today (mainly the {L}ake {E}yre {B}asin), and (2) from deposits of mixed dust materials. {T}he (87)sr/{S}r-86 and {N}d-143/{N}d-144 isotopic composition of the fine (< 5 gm) fraction of {A}ustralian dust samples was measured for comparison with the {S}r and {N}d isotopic composition of fine aeolian dust that reached the interior of the {E}ast {A}ntarctic {P}lateau. {T}he isotopic field for {A}ustralian dust is characterised by {S}r-87/{S}r-86 ratios ranging from 0.709 to 0.732 and epsilon({N}d)(0) between -3 and -15. {T}he low {S}r radiogenic values and epsilon({N}d)(0) of -3 obtained for {L}ake {E}yre samples are explained by the lithology of the {L}ake {E}yre catchment showing a dominance of {T}ertiary intraplate volcanic material. {T}hese new data show that the dust contribution from {A}ustralia could have been dominant during interglacial periods ({H}olocene and {M}arine {I}sotopic {S}tage 5.5) to {A}ntarctica. {D}uring glacial times, studies have shown that the {S}outh {A}merican dust isotopic signature overlaps the glacial {A}ntarctic dust field suggesting this region as dominant aeolian dust source. {H}owever, the {A}ustralian {L}ake {E}yre dust isotopic signature partially overlaps with the {A}ntarctic glacial dust signature. {W}e propose that the relatively greater contribution of {A}ustralian dust inferred for {A}ntarctic interglacial ice compared with glacial ice is not directly reflective of changes in dust transport pathway, but instead is related to a differential weakening of the {S}outh {A}merican sources during interglacial time with respect to the {A}ustralia sources. {O}ur findings have implications for interglacial versus glacial atmospheric circulation, at least in the {S}outhern {H}emisphere. (c) 2006 {E}lsevier {B}.{V} {A}ll rights reserved.},
  keywords = {{S}r and {N}d isotopes ; {A}ustralian aeolian dust ; {L}ake {E}yre {B}asin ; {E}ast {A}ntarctica ice core dust},
  booktitle = {},
  journal = {{E}arth and {P}lanetary {S}cience {L}etters},
  volume = {249},
  numero = {1-2},
  pages = {1--13},
  ISSN = {0012-821{X}},
  year = {2006},
  DOI = {10.1016/j.epsl.2006.06.028},
  URL = {https://www.documentation.ird.fr/hor/fdi:010037668},
}