Sedimentology of various cores from the West Antarctic continental margin
Three megascopic and disseminated tephra layers (which we refer to as layers A, B, and C) occur in late Quaternary glaciomarine sediments deposited on the West Antarctic continental margin. The stratigraphical positions of the distal tephra layers in 28 of the 32 studied sediment cores suggest their...
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Language: | English |
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PANGAEA
2008
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.671520 https://doi.org/10.1594/PANGAEA.671520 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.671520 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Antarctica Bellingshausen Sea slope on TMF DF Dome_Fuji DomeC DRILL Drilling/drill rig ELT05 ELT05.024-PC Eltanin Explorer GC GC105 GC378 CORE_NO 378 Gravity corer Ice_core_diverse James Clark Ross JR104 JR104-GC378 JR20040123 Mount_Berlin Mount_Takahe OUTCROP Outcrop sample PC PC103 PC106 PC108 PC110 PC111 PC113 Piston corer Sampling/drilling ice SED-04 SED-06 SED-07 SED-14 SED-15 SED-16 SED-17 SEDANO-I SEDANO-II Vostok |
spellingShingle |
Antarctica Bellingshausen Sea slope on TMF DF Dome_Fuji DomeC DRILL Drilling/drill rig ELT05 ELT05.024-PC Eltanin Explorer GC GC105 GC378 CORE_NO 378 Gravity corer Ice_core_diverse James Clark Ross JR104 JR104-GC378 JR20040123 Mount_Berlin Mount_Takahe OUTCROP Outcrop sample PC PC103 PC106 PC108 PC110 PC111 PC113 Piston corer Sampling/drilling ice SED-04 SED-06 SED-07 SED-14 SED-15 SED-16 SED-17 SEDANO-I SEDANO-II Vostok Hillenbrand, Claus-Dieter Moreton, Steven Grahame Caburlotto, Andrea Pudsey, Carol J Lucchi, Renata G Smellie, John L Benetti, Sara Grobe, Hannes Hunt, John B Larter, Robert D Sedimentology of various cores from the West Antarctic continental margin |
topic_facet |
Antarctica Bellingshausen Sea slope on TMF DF Dome_Fuji DomeC DRILL Drilling/drill rig ELT05 ELT05.024-PC Eltanin Explorer GC GC105 GC378 CORE_NO 378 Gravity corer Ice_core_diverse James Clark Ross JR104 JR104-GC378 JR20040123 Mount_Berlin Mount_Takahe OUTCROP Outcrop sample PC PC103 PC106 PC108 PC110 PC111 PC113 Piston corer Sampling/drilling ice SED-04 SED-06 SED-07 SED-14 SED-15 SED-16 SED-17 SEDANO-I SEDANO-II Vostok |
description |
Three megascopic and disseminated tephra layers (which we refer to as layers A, B, and C) occur in late Quaternary glaciomarine sediments deposited on the West Antarctic continental margin. The stratigraphical positions of the distal tephra layers in 28 of the 32 studied sediment cores suggest their deposition during latest Marine Isotopic Stage (MIS) 6 and MIS 5. One prominent tephra layer (layer B), which was deposited subsequent to the penultimate deglaciation (Termination II), is present in almost all of the cores. Geochemical analyses carried out on the glass shards of the layers reveal a uniform trachytic composition and indicate Marie Byrd Land (MBL), West Antarctica, as the common volcanic source. The geochemical composition of the marine tephra is compared to that of ash layers of similar age described from Mount Moulton and Mount Takahe in MBL and from ice cores drilled at Dome Fuji, Vostok and EPICA Dome C in East Antarctica. The three tephra layers in the marine sediments are chemically indistinguishable. Also five englacial ash layers from Mt. Moulton, which originated from highly explosive Plinian eruptions of the Mt. Berlin volcano in MBL between 142 ka and 92 ka ago, are chemically very similar, as are two tephra layers erupted from Mt. Takahe at ca. 102 ka and ca. 93 ka. Statistical analysis of the chemical composition of the glass shards indicates that the youngest tephra (layer A) in the marine cores matches the ash layer erupted from Mt. Berlin at 92 ka, which was previously correlated with tephra layers in the EPICA Dome C and the Dome Fuji ice cores. A tephra erupted from Mt. Berlin at 136 ka seems to correspond to a tephra layer deposited at 1733 m in the EPICA Dome C ice core. Additionally, the oldest tephra (layer C) in the marine sediments resembles an ash layer deposited at Vostok around 142 ka, but statistical evidence for the validity of this correlation is inconclusive. Although our results underscore the potential of tephrostratigraphy for correlating terrestrial and marine ... |
format |
Dataset |
author |
Hillenbrand, Claus-Dieter Moreton, Steven Grahame Caburlotto, Andrea Pudsey, Carol J Lucchi, Renata G Smellie, John L Benetti, Sara Grobe, Hannes Hunt, John B Larter, Robert D |
author_facet |
Hillenbrand, Claus-Dieter Moreton, Steven Grahame Caburlotto, Andrea Pudsey, Carol J Lucchi, Renata G Smellie, John L Benetti, Sara Grobe, Hannes Hunt, John B Larter, Robert D |
author_sort |
Hillenbrand, Claus-Dieter |
title |
Sedimentology of various cores from the West Antarctic continental margin |
title_short |
Sedimentology of various cores from the West Antarctic continental margin |
title_full |
Sedimentology of various cores from the West Antarctic continental margin |
title_fullStr |
Sedimentology of various cores from the West Antarctic continental margin |
title_full_unstemmed |
Sedimentology of various cores from the West Antarctic continental margin |
title_sort |
sedimentology of various cores from the west antarctic continental margin |
publisher |
PANGAEA |
publishDate |
2008 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.671520 https://doi.org/10.1594/PANGAEA.671520 |
op_coverage |
MEDIAN LATITUDE: -67.548840 * MEDIAN LONGITUDE: -95.594039 * SOUTH-BOUND LATITUDE: -78.464420 * WEST-BOUND LONGITUDE: 39.666670 * NORTH-BOUND LATITUDE: -63.095000 * EAST-BOUND LONGITUDE: -65.513300 * DATE/TIME START: 1962-10-01T00:00:00 * DATE/TIME END: 2004-02-07T00:00:00 |
long_lat |
ENVELOPE(39.700,39.700,-77.317,-77.317) ENVELOPE(-130.000,-130.000,-78.000,-78.000) ENVELOPE(-112.233,-112.233,-76.267,-76.267) ENVELOPE(166.800,166.800,-77.217,-77.217) ENVELOPE(-135.133,-135.133,-76.050,-76.050) ENVELOPE(39.666670,-65.513300,-63.095000,-78.464420) |
geographic |
Antarctic East Antarctica West Antarctica Bellingshausen Sea Byrd Dome Fuji Marie Byrd Land Takahe Mount Takahe Mount Moulton |
geographic_facet |
Antarctic East Antarctica West Antarctica Bellingshausen Sea Byrd Dome Fuji Marie Byrd Land Takahe Mount Takahe Mount Moulton |
genre |
Antarc* Antarctic Antarctica Bellingshausen Sea East Antarctica EPICA ice core Marie Byrd Land West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Bellingshausen Sea East Antarctica EPICA ice core Marie Byrd Land West Antarctica |
op_source |
Supplement to: Hillenbrand, Claus-Dieter; Moreton, Steven Grahame; Caburlotto, Andrea; Pudsey, Carol J; Lucchi, Renata G; Smellie, John L; Benetti, Sara; Grobe, Hannes; Hunt, John B; Larter, Robert D (2008): Volcanic time-markers for marine isotopic stages 6 and 5 in Southern Ocean sediments and Antarctic ice cores: implications for tephra correlations between palaeoclimatic records. Quaternary Science Reviews, 27(5-6), 518-540, https://doi.org/10.1016/j.quascirev.2007.11.009 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.671520 https://doi.org/10.1594/PANGAEA.671520 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.671520 https://doi.org/10.1016/j.quascirev.2007.11.009 |
_version_ |
1766163258989871104 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.671520 2023-05-15T13:42:09+02:00 Sedimentology of various cores from the West Antarctic continental margin Hillenbrand, Claus-Dieter Moreton, Steven Grahame Caburlotto, Andrea Pudsey, Carol J Lucchi, Renata G Smellie, John L Benetti, Sara Grobe, Hannes Hunt, John B Larter, Robert D MEDIAN LATITUDE: -67.548840 * MEDIAN LONGITUDE: -95.594039 * SOUTH-BOUND LATITUDE: -78.464420 * WEST-BOUND LONGITUDE: 39.666670 * NORTH-BOUND LATITUDE: -63.095000 * EAST-BOUND LONGITUDE: -65.513300 * DATE/TIME START: 1962-10-01T00:00:00 * DATE/TIME END: 2004-02-07T00:00:00 2008-12-05 application/zip, 12 datasets https://doi.pangaea.de/10.1594/PANGAEA.671520 https://doi.org/10.1594/PANGAEA.671520 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.671520 https://doi.org/10.1594/PANGAEA.671520 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Hillenbrand, Claus-Dieter; Moreton, Steven Grahame; Caburlotto, Andrea; Pudsey, Carol J; Lucchi, Renata G; Smellie, John L; Benetti, Sara; Grobe, Hannes; Hunt, John B; Larter, Robert D (2008): Volcanic time-markers for marine isotopic stages 6 and 5 in Southern Ocean sediments and Antarctic ice cores: implications for tephra correlations between palaeoclimatic records. Quaternary Science Reviews, 27(5-6), 518-540, https://doi.org/10.1016/j.quascirev.2007.11.009 Antarctica Bellingshausen Sea slope on TMF DF Dome_Fuji DomeC DRILL Drilling/drill rig ELT05 ELT05.024-PC Eltanin Explorer GC GC105 GC378 CORE_NO 378 Gravity corer Ice_core_diverse James Clark Ross JR104 JR104-GC378 JR20040123 Mount_Berlin Mount_Takahe OUTCROP Outcrop sample PC PC103 PC106 PC108 PC110 PC111 PC113 Piston corer Sampling/drilling ice SED-04 SED-06 SED-07 SED-14 SED-15 SED-16 SED-17 SEDANO-I SEDANO-II Vostok Dataset 2008 ftpangaea https://doi.org/10.1594/PANGAEA.671520 https://doi.org/10.1016/j.quascirev.2007.11.009 2023-01-20T07:31:06Z Three megascopic and disseminated tephra layers (which we refer to as layers A, B, and C) occur in late Quaternary glaciomarine sediments deposited on the West Antarctic continental margin. The stratigraphical positions of the distal tephra layers in 28 of the 32 studied sediment cores suggest their deposition during latest Marine Isotopic Stage (MIS) 6 and MIS 5. One prominent tephra layer (layer B), which was deposited subsequent to the penultimate deglaciation (Termination II), is present in almost all of the cores. Geochemical analyses carried out on the glass shards of the layers reveal a uniform trachytic composition and indicate Marie Byrd Land (MBL), West Antarctica, as the common volcanic source. The geochemical composition of the marine tephra is compared to that of ash layers of similar age described from Mount Moulton and Mount Takahe in MBL and from ice cores drilled at Dome Fuji, Vostok and EPICA Dome C in East Antarctica. The three tephra layers in the marine sediments are chemically indistinguishable. Also five englacial ash layers from Mt. Moulton, which originated from highly explosive Plinian eruptions of the Mt. Berlin volcano in MBL between 142 ka and 92 ka ago, are chemically very similar, as are two tephra layers erupted from Mt. Takahe at ca. 102 ka and ca. 93 ka. Statistical analysis of the chemical composition of the glass shards indicates that the youngest tephra (layer A) in the marine cores matches the ash layer erupted from Mt. Berlin at 92 ka, which was previously correlated with tephra layers in the EPICA Dome C and the Dome Fuji ice cores. A tephra erupted from Mt. Berlin at 136 ka seems to correspond to a tephra layer deposited at 1733 m in the EPICA Dome C ice core. Additionally, the oldest tephra (layer C) in the marine sediments resembles an ash layer deposited at Vostok around 142 ka, but statistical evidence for the validity of this correlation is inconclusive. Although our results underscore the potential of tephrostratigraphy for correlating terrestrial and marine ... Dataset Antarc* Antarctic Antarctica Bellingshausen Sea East Antarctica EPICA ice core Marie Byrd Land West Antarctica PANGAEA - Data Publisher for Earth & Environmental Science Antarctic East Antarctica West Antarctica Bellingshausen Sea Byrd Dome Fuji ENVELOPE(39.700,39.700,-77.317,-77.317) Marie Byrd Land ENVELOPE(-130.000,-130.000,-78.000,-78.000) Takahe ENVELOPE(-112.233,-112.233,-76.267,-76.267) Mount Takahe ENVELOPE(166.800,166.800,-77.217,-77.217) Mount Moulton ENVELOPE(-135.133,-135.133,-76.050,-76.050) ENVELOPE(39.666670,-65.513300,-63.095000,-78.464420) |