1997
DOI: 10.1016/s0012-821x(96)00255-5
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Patagonian origin of glacial dust deposited in East Antarctica (Vostok and Dome C) during glacial stages 2, 4 and 6

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Cited by 352 publications
(325 citation statements)
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“…Over the glacial periods of the last 160,000 years, the majority of dust particles that were trapped in ice in Antarctica have been derived primarily from Patagonia 43,44 . Consistent with the aeolian input of mesophilic organisms into Antarctica, we found many non-thermal cosmopolitan OTUs at Tramway Ridge that were predominately found in the surface strata (0-2 cm) of both profiles.…”
Section: Discussionmentioning
confidence: 99%
“…Over the glacial periods of the last 160,000 years, the majority of dust particles that were trapped in ice in Antarctica have been derived primarily from Patagonia 43,44 . Consistent with the aeolian input of mesophilic organisms into Antarctica, we found many non-thermal cosmopolitan OTUs at Tramway Ridge that were predominately found in the surface strata (0-2 cm) of both profiles.…”
Section: Discussionmentioning
confidence: 99%
“…[13] Ice cores from the Antarctic Peninsula suggest that the flux of dust originating from Patagonia was much larger during the LGM than at present [Basile et al, 1997;Petit et al, 1999;Delmonte et al, 2002]. The main mechanisms which can explain the enhanced dust flux are (1) increased westerly winds and (2) drier conditions in the source region, which would be compatible with the hypothesis of weaker westerly storm tracks.…”
Section: Paleoproxies and Modeling Studies Of The Southern Hemispherementioning
confidence: 96%
“…Reactions between dust aerosols and aerosols of sulfuric or nitric acid during atmospheric transport is also a possibility (e.g. [8]). So we may expect different acidity effects on dust during different climate periods.…”
Section: Dust Compositionmentioning
confidence: 99%
“…Many new high resolution records of dust species have been obtained from the recently recovered EPICA Dome C (EDC) ice core [7], providing an ideal database to investigate, in detail, temporal changes in East Antarctic dust. Isotope analyses (Nd and Sr) of glacial dust from East Antarctic ice cores have identified Patagonia (Argentina) as the main glacial dust source area, with possible additional contributions from South Africa or Australia [6,8]. Recent analyses on East Antarctic ice cores are confirming a Patagonian origin for dust during glacial times [9], while for interglacial periods other source locations, such as Eastern Australia in particular, may have contributed to a more important extent [10].…”
Section: Introductionmentioning
confidence: 99%