Physical properties and abundance of diatoms of the ANDRILL AND1-1B drill core
In the austral summer of 2006/7 the ANDRILL MIS (ANtarctic geological DRILLing- McMurdo Ice Shelf) project recovered a 1285 m sediment core from beneath the Ross Ice Shelf near Hut Point Peninsula, Ross Island, Antarctica in a flexural moat associated with the volcanic loading of Ross Island. Contai...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.757323 2023-05-15T13:42:10+02:00 Physical properties and abundance of diatoms of the ANDRILL AND1-1B drill core Konfirst, Matthew Alan Kuhn, Gerhard Monien, Donata Scherer, Reed P LATITUDE: -77.889440 * LONGITUDE: 167.089320 * DATE/TIME START: 2006-10-31T00:00:00 * DATE/TIME END: 2006-12-26T00:00:00 2011-02-15 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.757323 https://doi.org/10.1594/PANGAEA.757323 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.757323 https://doi.org/10.1594/PANGAEA.757323 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Konfirst, Matthew Alan; Kuhn, Gerhard; Monien, Donata; Scherer, Reed P (2011): Correlation of Early Pliocene diatomite to low amplitude Milankovitch cycles in the ANDRILL AND-1B drill core. Marine Micropaleontology, 80(3-4), 114-124, https://doi.org/10.1016/j.marmicro.2011.06.005 AND1-1B AND-1B ANDRILL Antarctic Geological Drilling D-ANDRILL DRILL Drilling/drill rig McMurdo Ice Shelf McMurdo Station MIS Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.757323 https://doi.org/10.1016/j.marmicro.2011.06.005 2023-01-20T07:32:03Z In the austral summer of 2006/7 the ANDRILL MIS (ANtarctic geological DRILLing- McMurdo Ice Shelf) project recovered a 1285 m sediment core from beneath the Ross Ice Shelf near Hut Point Peninsula, Ross Island, Antarctica in a flexural moat associated with the volcanic loading of Ross Island. Contained within the upper ~600 m of this core are sediments recording 38 glacial to interglacial cycles of Early Pliocene to Pleistocene time, including 13 discrete diatomite units (DU). The longest of these, DU XI, is ~76 m thick, contains two distinct unconformities marked by layers of volcanic brecciated sands, and has been assigned an Early to Mid-Pliocene age (5-3 Ma). A detailed record (avg. sample spacing of 33 cm) of the siliceous microfossil assemblages have been generated for DU XI and used in conjunction with geochemical and sedimentological data to subdivide DU XI into four discrete subunits of continuous sedimentation. Within each unit, changes in diatom assemblages have been correlated with the d18O record, providing a temporal resolution as high as 600 yr, and allowing for the construction of a detailed age model and calculation of associated sediment accumulation rates within DU XI. Results indicate a productivity-dominated sedimentary record with higher sediment accumulation rates containing a greater proportion of hemipelagic mud occurring during relatively cool periods and reduced accumulation during warmer intervals. This implies that even during periods of substantial warmth, Milankovitch-paced changes in Antarctic ice volume can be linked to ecological changes recorded as shifts in diatom assemblages. Dataset Antarc* Antarctic Antarctica Arctic Ice Shelf McMurdo Ice Shelf Ross Ice Shelf Ross Island Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Arctic Austral Hut Point ENVELOPE(166.850,166.850,-77.767,-77.767) Hut Point Peninsula ENVELOPE(166.850,166.850,-77.767,-77.767) McMurdo Ice Shelf ENVELOPE(166.500,166.500,-78.000,-78.000) McMurdo Station ENVELOPE(166.667,166.667,-77.850,-77.850) Ross Ice Shelf Ross Island ENVELOPE(167.089320,167.089320,-77.889440,-77.889440) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AND1-1B AND-1B ANDRILL Antarctic Geological Drilling D-ANDRILL DRILL Drilling/drill rig McMurdo Ice Shelf McMurdo Station MIS Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
spellingShingle |
AND1-1B AND-1B ANDRILL Antarctic Geological Drilling D-ANDRILL DRILL Drilling/drill rig McMurdo Ice Shelf McMurdo Station MIS Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Konfirst, Matthew Alan Kuhn, Gerhard Monien, Donata Scherer, Reed P Physical properties and abundance of diatoms of the ANDRILL AND1-1B drill core |
topic_facet |
AND1-1B AND-1B ANDRILL Antarctic Geological Drilling D-ANDRILL DRILL Drilling/drill rig McMurdo Ice Shelf McMurdo Station MIS Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
description |
In the austral summer of 2006/7 the ANDRILL MIS (ANtarctic geological DRILLing- McMurdo Ice Shelf) project recovered a 1285 m sediment core from beneath the Ross Ice Shelf near Hut Point Peninsula, Ross Island, Antarctica in a flexural moat associated with the volcanic loading of Ross Island. Contained within the upper ~600 m of this core are sediments recording 38 glacial to interglacial cycles of Early Pliocene to Pleistocene time, including 13 discrete diatomite units (DU). The longest of these, DU XI, is ~76 m thick, contains two distinct unconformities marked by layers of volcanic brecciated sands, and has been assigned an Early to Mid-Pliocene age (5-3 Ma). A detailed record (avg. sample spacing of 33 cm) of the siliceous microfossil assemblages have been generated for DU XI and used in conjunction with geochemical and sedimentological data to subdivide DU XI into four discrete subunits of continuous sedimentation. Within each unit, changes in diatom assemblages have been correlated with the d18O record, providing a temporal resolution as high as 600 yr, and allowing for the construction of a detailed age model and calculation of associated sediment accumulation rates within DU XI. Results indicate a productivity-dominated sedimentary record with higher sediment accumulation rates containing a greater proportion of hemipelagic mud occurring during relatively cool periods and reduced accumulation during warmer intervals. This implies that even during periods of substantial warmth, Milankovitch-paced changes in Antarctic ice volume can be linked to ecological changes recorded as shifts in diatom assemblages. |
format |
Dataset |
author |
Konfirst, Matthew Alan Kuhn, Gerhard Monien, Donata Scherer, Reed P |
author_facet |
Konfirst, Matthew Alan Kuhn, Gerhard Monien, Donata Scherer, Reed P |
author_sort |
Konfirst, Matthew Alan |
title |
Physical properties and abundance of diatoms of the ANDRILL AND1-1B drill core |
title_short |
Physical properties and abundance of diatoms of the ANDRILL AND1-1B drill core |
title_full |
Physical properties and abundance of diatoms of the ANDRILL AND1-1B drill core |
title_fullStr |
Physical properties and abundance of diatoms of the ANDRILL AND1-1B drill core |
title_full_unstemmed |
Physical properties and abundance of diatoms of the ANDRILL AND1-1B drill core |
title_sort |
physical properties and abundance of diatoms of the andrill and1-1b drill core |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.757323 https://doi.org/10.1594/PANGAEA.757323 |
op_coverage |
LATITUDE: -77.889440 * LONGITUDE: 167.089320 * DATE/TIME START: 2006-10-31T00:00:00 * DATE/TIME END: 2006-12-26T00:00:00 |
long_lat |
ENVELOPE(166.850,166.850,-77.767,-77.767) ENVELOPE(166.850,166.850,-77.767,-77.767) ENVELOPE(166.500,166.500,-78.000,-78.000) ENVELOPE(166.667,166.667,-77.850,-77.850) ENVELOPE(167.089320,167.089320,-77.889440,-77.889440) |
geographic |
Antarctic Arctic Austral Hut Point Hut Point Peninsula McMurdo Ice Shelf McMurdo Station Ross Ice Shelf Ross Island |
geographic_facet |
Antarctic Arctic Austral Hut Point Hut Point Peninsula McMurdo Ice Shelf McMurdo Station Ross Ice Shelf Ross Island |
genre |
Antarc* Antarctic Antarctica Arctic Ice Shelf McMurdo Ice Shelf Ross Ice Shelf Ross Island Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Arctic Ice Shelf McMurdo Ice Shelf Ross Ice Shelf Ross Island Sea ice |
op_source |
Supplement to: Konfirst, Matthew Alan; Kuhn, Gerhard; Monien, Donata; Scherer, Reed P (2011): Correlation of Early Pliocene diatomite to low amplitude Milankovitch cycles in the ANDRILL AND-1B drill core. Marine Micropaleontology, 80(3-4), 114-124, https://doi.org/10.1016/j.marmicro.2011.06.005 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.757323 https://doi.org/10.1594/PANGAEA.757323 |
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.757323 https://doi.org/10.1016/j.marmicro.2011.06.005 |
_version_ |
1766163971969122304 |