New Record of Dust Input and Provenance During Glacial Periods in Western Australia Shelf (IODP Expedition 356, Site U1461) from the Middle to Late Pleistocene
International Ocean Discovery Program (IODP) Expedition 356 Site U1461 represents one of the few records from the North West Australian shelf that provides information about aridity fluctuations in Australia during the Quaternary. A combination of chronostratigraphic indicators revealed the (partial...
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MDPI AG
2020-11-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/11/11/1251 |
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| author | Margot Courtillat Maximilian Hallenberger Maria-Angela Bassetti Dominique Aubert Catherine Jeandel Lars Reuning Chelsea Korpanty Pierre Moissette Stéphanie Mounic Mariem Saavedra-Pellitero |
| author_facet | Margot Courtillat Maximilian Hallenberger Maria-Angela Bassetti Dominique Aubert Catherine Jeandel Lars Reuning Chelsea Korpanty Pierre Moissette Stéphanie Mounic Mariem Saavedra-Pellitero |
| author_sort | Margot Courtillat |
| collection | DOAJ |
| description | International Ocean Discovery Program (IODP) Expedition 356 Site U1461 represents one of the few records from the North West Australian shelf that provides information about aridity fluctuations in Australia during the Quaternary. A combination of chronostratigraphic indicators revealed the (partial) preservation of two major glaciations (Marine Isotope Stage (MIS) 2 and MIS 12) in the sedimentary record. The faunal content (mainly benthic foraminifera, corals and bryozoans) was analyzed to estimate paleo-environments and paleo-depths in order to determine if these sediments have been remobilized by reworking processes. Despite the occurrence of a depositional hiatus (including MIS 5d to MIS 9-time interval), the excellent preservation of faunal content suggests that the preserved sediment is in situ. The geochemical composition of the sediments (Nd and major elements) indicates that during MIS 12 riverine input was likely reduced because of enhanced aridity, and the sediment provenance (mainly atmospheric dust) is likely in the central (Lake Eyre) or eastern (Murray Darling Basin) parts of the Australian continent. MIS 2 is confirmed to be one of the driest periods recorded in Australia but with mixed dust sources from the eastern and western parts of the continent. More humid conditions followed the glacial maximum, which might correspond to the peak of the Indian-Australian Summer Monsoon. |
| first_indexed | 2024-03-10T14:42:30Z |
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| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T14:42:30Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-f975c64050ce4103b745a89607bf55cf2023-11-20T21:44:33ZengMDPI AGAtmosphere2073-44332020-11-011111125110.3390/atmos11111251New Record of Dust Input and Provenance During Glacial Periods in Western Australia Shelf (IODP Expedition 356, Site U1461) from the Middle to Late PleistoceneMargot Courtillat0Maximilian Hallenberger1Maria-Angela Bassetti2Dominique Aubert3Catherine Jeandel4Lars Reuning5Chelsea Korpanty6Pierre Moissette7Stéphanie Mounic8Mariem Saavedra-Pellitero9Centre de Formation et de Recherche sur les Environnements Méditerranéens, Université de Perpignan Via Domitia, UMR 5110, 52 Avenue Paul Alduy, CEDEX, F-66860 Perpignan, FranceEnergy & Mineral Resources Group, Geological Institute Wüllnerstr. 2, RWTH Aachen University, 52052 Aachen, GermanyCentre de Formation et de Recherche sur les Environnements Méditerranéens, Université de Perpignan Via Domitia, UMR 5110, 52 Avenue Paul Alduy, CEDEX, F-66860 Perpignan, FranceCentre de Formation et de Recherche sur les Environnements Méditerranéens, Université de Perpignan Via Domitia, UMR 5110, 52 Avenue Paul Alduy, CEDEX, F-66860 Perpignan, FranceObservatoire Midi-Pyrénées, LEGOS (Université de Toulouse, CNRS/CNES/IRD/UPS), 14 avenue Edouard Belin, 31400 Toulouse, FranceInstitute of Geosciences, CAU Kiel, Ludewig-Meyn-Straße 10, 24118 Kiel, GermanyMARUM Center for Marine Environmental Sciences, University of Bremen, Leobener Str. 8, 28359 Bremen, GermanyDepartment of Historical Geology & Palaeontology, Faculty of Geology and Geoenvironment, National and Kapodistrian University of Athens, 15784 Athens, GreeceGéosciences-Environnement Toulouse, Université de Toulouse, UPS (SVT-OMP), CNRS, IRD, 31400 Toulouse, FranceDepartment of Geosciences, University of Bremen, Klagenfurter Strasse Bremen, 28359 Bremen, GermanyInternational Ocean Discovery Program (IODP) Expedition 356 Site U1461 represents one of the few records from the North West Australian shelf that provides information about aridity fluctuations in Australia during the Quaternary. A combination of chronostratigraphic indicators revealed the (partial) preservation of two major glaciations (Marine Isotope Stage (MIS) 2 and MIS 12) in the sedimentary record. The faunal content (mainly benthic foraminifera, corals and bryozoans) was analyzed to estimate paleo-environments and paleo-depths in order to determine if these sediments have been remobilized by reworking processes. Despite the occurrence of a depositional hiatus (including MIS 5d to MIS 9-time interval), the excellent preservation of faunal content suggests that the preserved sediment is in situ. The geochemical composition of the sediments (Nd and major elements) indicates that during MIS 12 riverine input was likely reduced because of enhanced aridity, and the sediment provenance (mainly atmospheric dust) is likely in the central (Lake Eyre) or eastern (Murray Darling Basin) parts of the Australian continent. MIS 2 is confirmed to be one of the driest periods recorded in Australia but with mixed dust sources from the eastern and western parts of the continent. More humid conditions followed the glacial maximum, which might correspond to the peak of the Indian-Australian Summer Monsoon.https://www.mdpi.com/2073-4433/11/11/1251aeolian dustnorthwest Australiadust provenancepaleoclimateNd isotopesforaminifera |
| spellingShingle | Margot Courtillat Maximilian Hallenberger Maria-Angela Bassetti Dominique Aubert Catherine Jeandel Lars Reuning Chelsea Korpanty Pierre Moissette Stéphanie Mounic Mariem Saavedra-Pellitero New Record of Dust Input and Provenance During Glacial Periods in Western Australia Shelf (IODP Expedition 356, Site U1461) from the Middle to Late Pleistocene Atmosphere aeolian dust northwest Australia dust provenance paleoclimate Nd isotopes foraminifera |
| title | New Record of Dust Input and Provenance During Glacial Periods in Western Australia Shelf (IODP Expedition 356, Site U1461) from the Middle to Late Pleistocene |
| title_full | New Record of Dust Input and Provenance During Glacial Periods in Western Australia Shelf (IODP Expedition 356, Site U1461) from the Middle to Late Pleistocene |
| title_fullStr | New Record of Dust Input and Provenance During Glacial Periods in Western Australia Shelf (IODP Expedition 356, Site U1461) from the Middle to Late Pleistocene |
| title_full_unstemmed | New Record of Dust Input and Provenance During Glacial Periods in Western Australia Shelf (IODP Expedition 356, Site U1461) from the Middle to Late Pleistocene |
| title_short | New Record of Dust Input and Provenance During Glacial Periods in Western Australia Shelf (IODP Expedition 356, Site U1461) from the Middle to Late Pleistocene |
| title_sort | new record of dust input and provenance during glacial periods in western australia shelf iodp expedition 356 site u1461 from the middle to late pleistocene |
| topic | aeolian dust northwest Australia dust provenance paleoclimate Nd isotopes foraminifera |
| url | https://www.mdpi.com/2073-4433/11/11/1251 |
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