Micropaleontology and stable isotope record of ODP Hole 178-1098C
Detailed study of four Holocene sediment intervals from Ocean Drilling Program Site 1098 (Palmer Deep, Antarctic Peninsula) reveals that in situ dissolution of calcareous foraminifers in the core repository has significantly altered and in some cases eliminated calcareous foraminifers. Despite disso...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.735540 2024-09-15T17:43:41+00:00 Micropaleontology and stable isotope record of ODP Hole 178-1098C Osterman, Lisa Ellen Poore, Richard Z Barron, John A LATITUDE: -64.861830 * LONGITUDE: -64.207810 * DATE/TIME START: 1998-03-13T00:00:00 * DATE/TIME END: 1998-03-13T00:00:00 2001 application/zip, 8 datasets https://doi.pangaea.de/10.1594/PANGAEA.735540 https://doi.org/10.1594/PANGAEA.735540 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.735540 https://doi.org/10.1594/PANGAEA.735540 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Osterman, Lisa Ellen; Poore, Richard Z; Barron, John A (2001): Climate variability of the Holocene, Site 1098, Palmer Deep, Antarctica. In: Barker, PF; Camerlenghi, A; Acton, GD; Ramsay, ATS (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 178, 1-45, https://doi.org/10.2973/odp.proc.sr.178.203.2001 178-1098C Drake Passage DRILL Drilling/drill rig Joides Resolution Leg178 Ocean Drilling Program ODP dataset publication series 2001 ftpangaea https://doi.org/10.1594/PANGAEA.73554010.2973/odp.proc.sr.178.203.2001 2024-07-24T02:31:20Z Detailed study of four Holocene sediment intervals from Ocean Drilling Program Site 1098 (Palmer Deep, Antarctic Peninsula) reveals that in situ dissolution of calcareous foraminifers in the core repository has significantly altered and in some cases eliminated calcareous foraminifers. Despite dissolution, the foraminifer and supporting diatom data show that the most open-ocean and reduced sea-ice conditions occurred in the early Holocene. The influence of Circumpolar Deep Water was greatest during the early Holocene but continued to be important throughout the Holocene. An increase in sea-ice proximal diatoms at 3500 cal. BP documents an expansion in the amount of persistent sea ice. The inferred increase in sea ice corresponds with an overall increase in magnetic susceptibility values. Benthic foraminifers are present in all samples from the Palmer Deep, including the middle Holocene pervasively laminated sediments with low magnetic susceptibility values. The consistent presence of mobile epifaunal benthic foraminifers in the laminated sediments demonstrates that the laminations do not represent anoxic conditions. The uniform composition of the agglutinated foraminifer fauna throughout the late Holocene suggests that the Palmer Deep did not experience bottom-water-mass changes associated with the alternating deposition of bioturbated or laminated sediments. Other/Unknown Material Antarc* Antarctic Antarctic Peninsula Drake Passage Sea ice PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-64.207810,-64.207810,-64.861830,-64.861830) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
178-1098C Drake Passage DRILL Drilling/drill rig Joides Resolution Leg178 Ocean Drilling Program ODP |
spellingShingle |
178-1098C Drake Passage DRILL Drilling/drill rig Joides Resolution Leg178 Ocean Drilling Program ODP Osterman, Lisa Ellen Poore, Richard Z Barron, John A Micropaleontology and stable isotope record of ODP Hole 178-1098C |
topic_facet |
178-1098C Drake Passage DRILL Drilling/drill rig Joides Resolution Leg178 Ocean Drilling Program ODP |
description |
Detailed study of four Holocene sediment intervals from Ocean Drilling Program Site 1098 (Palmer Deep, Antarctic Peninsula) reveals that in situ dissolution of calcareous foraminifers in the core repository has significantly altered and in some cases eliminated calcareous foraminifers. Despite dissolution, the foraminifer and supporting diatom data show that the most open-ocean and reduced sea-ice conditions occurred in the early Holocene. The influence of Circumpolar Deep Water was greatest during the early Holocene but continued to be important throughout the Holocene. An increase in sea-ice proximal diatoms at 3500 cal. BP documents an expansion in the amount of persistent sea ice. The inferred increase in sea ice corresponds with an overall increase in magnetic susceptibility values. Benthic foraminifers are present in all samples from the Palmer Deep, including the middle Holocene pervasively laminated sediments with low magnetic susceptibility values. The consistent presence of mobile epifaunal benthic foraminifers in the laminated sediments demonstrates that the laminations do not represent anoxic conditions. The uniform composition of the agglutinated foraminifer fauna throughout the late Holocene suggests that the Palmer Deep did not experience bottom-water-mass changes associated with the alternating deposition of bioturbated or laminated sediments. |
format |
Other/Unknown Material |
author |
Osterman, Lisa Ellen Poore, Richard Z Barron, John A |
author_facet |
Osterman, Lisa Ellen Poore, Richard Z Barron, John A |
author_sort |
Osterman, Lisa Ellen |
title |
Micropaleontology and stable isotope record of ODP Hole 178-1098C |
title_short |
Micropaleontology and stable isotope record of ODP Hole 178-1098C |
title_full |
Micropaleontology and stable isotope record of ODP Hole 178-1098C |
title_fullStr |
Micropaleontology and stable isotope record of ODP Hole 178-1098C |
title_full_unstemmed |
Micropaleontology and stable isotope record of ODP Hole 178-1098C |
title_sort |
micropaleontology and stable isotope record of odp hole 178-1098c |
publisher |
PANGAEA |
publishDate |
2001 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.735540 https://doi.org/10.1594/PANGAEA.735540 |
op_coverage |
LATITUDE: -64.861830 * LONGITUDE: -64.207810 * DATE/TIME START: 1998-03-13T00:00:00 * DATE/TIME END: 1998-03-13T00:00:00 |
long_lat |
ENVELOPE(-64.207810,-64.207810,-64.861830,-64.861830) |
genre |
Antarc* Antarctic Antarctic Peninsula Drake Passage Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Drake Passage Sea ice |
op_source |
Supplement to: Osterman, Lisa Ellen; Poore, Richard Z; Barron, John A (2001): Climate variability of the Holocene, Site 1098, Palmer Deep, Antarctica. In: Barker, PF; Camerlenghi, A; Acton, GD; Ramsay, ATS (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 178, 1-45, https://doi.org/10.2973/odp.proc.sr.178.203.2001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.735540 https://doi.org/10.1594/PANGAEA.735540 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.73554010.2973/odp.proc.sr.178.203.2001 |
_version_ |
1810490775930142720 |