Stable carbon and oxygen isotope record of Marine Isotope Stage 11 in the South Atlantic
Oxygen and carbon isotopic gradients in surface waters were reconstructed for the past 450 kyr by analysis of the planktic foraminifer Neogloboquadrina pachyderma in cores located at approximately 43°, 47°, and 54°S across the Polar Frontal Zone in the South Atlantic sector of the Southern Ocean. Co...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.742701 2023-05-15T13:42:10+02:00 Stable carbon and oxygen isotope record of Marine Isotope Stage 11 in the South Atlantic Hodell, David A Charles, Christopher D Ninnemann, Ulysses S MEDIAN LATITUDE: -44.951400 * MEDIAN LONGITUDE: 7.634375 * SOUTH-BOUND LATITUDE: -47.100000 * WEST-BOUND LONGITUDE: 5.916700 * NORTH-BOUND LATITUDE: -42.913300 * EAST-BOUND LONGITUDE: 8.600000 * DATE/TIME START: 1987-04-25T13:30:00 * DATE/TIME END: 1987-04-26T06:54:00 2000-06-30 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.742701 https://doi.org/10.1594/PANGAEA.742701 en eng PANGAEA Hodell, David A (2000): South Atlantic foraminifer stable isotope data, marine isotope stage 11. IGBP PAGES/World Data Center A for Paleoclimatology Data Contribution Series #2000-059. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA, ftp://ftp.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hodell2000/ https://doi.pangaea.de/10.1594/PANGAEA.742701 https://doi.org/10.1594/PANGAEA.742701 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Hodell, David A; Charles, Christopher D; Ninnemann, Ulysses S (2000): Comparison of interglacial stages in the South Atlantic sector of the southern ocean for the past 450 kyr: implifications for Marine Isotope Stage (MIS) 11. Global and Planetary Change, 24(1), 7-26, https://doi.org/10.1016/S0921-8181(99)00069-7 114-704A DRILL Drilling/drill rig Joides Resolution Leg114 Meteor Rise Ocean Drilling Program ODP PC Piston corer South Atlantic Ocean TN057-10 TN057-6-PC4 Dataset 2000 ftpangaea https://doi.org/10.1594/PANGAEA.742701 https://doi.org/10.1016/S0921-8181(99)00069-7 2023-01-20T07:31:50Z Oxygen and carbon isotopic gradients in surface waters were reconstructed for the past 450 kyr by analysis of the planktic foraminifer Neogloboquadrina pachyderma in cores located at approximately 43°, 47°, and 54°S across the Polar Frontal Zone in the South Atlantic sector of the Southern Ocean. Comparison of the oxygen isotopic records for peak interglacial conditions during the past 450 kyr reveals that Marine Isotope Stage (MIS) 11 was not substantially warmer than other interglacials at high southern latitudes, although the period of warmth lasted longer. The carbonate and carbon isotope chemistry of surface and deep water represent the truly distinctive aspects of Stage 11 in the Southern Ocean. Peak carbonate production occurred at high southern latitudes during MIS 11, resulting in light-colored, high-carbonate sediments deposited throughout the Southern Ocean above the lysocline. Carbon isotopic values of benthic foraminifera in cores bathed by Circumpolar Deep Water (CPDW) were highest during MIS11, suggesting strong input of North Atlantic Deep Water (NADW) to the Southern Ocean. Planktic delta13C values at high southern latitudes were also highest during MIS 11, which may reflect upwelling of CPDW with a greater contribution of NADW, lower whole-ocean nutrient inventories, higher gas exchange rates, and/or lowered alkalinity of Antarctic surface waters (resulting from carbonate precipitation south of the Polar Front). Dataset Antarc* Antarctic NADW Neogloboquadrina pachyderma North Atlantic Deep Water North Atlantic South Atlantic Ocean Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Southern Ocean ENVELOPE(5.916700,8.600000,-42.913300,-47.100000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
114-704A DRILL Drilling/drill rig Joides Resolution Leg114 Meteor Rise Ocean Drilling Program ODP PC Piston corer South Atlantic Ocean TN057-10 TN057-6-PC4 |
spellingShingle |
114-704A DRILL Drilling/drill rig Joides Resolution Leg114 Meteor Rise Ocean Drilling Program ODP PC Piston corer South Atlantic Ocean TN057-10 TN057-6-PC4 Hodell, David A Charles, Christopher D Ninnemann, Ulysses S Stable carbon and oxygen isotope record of Marine Isotope Stage 11 in the South Atlantic |
topic_facet |
114-704A DRILL Drilling/drill rig Joides Resolution Leg114 Meteor Rise Ocean Drilling Program ODP PC Piston corer South Atlantic Ocean TN057-10 TN057-6-PC4 |
description |
Oxygen and carbon isotopic gradients in surface waters were reconstructed for the past 450 kyr by analysis of the planktic foraminifer Neogloboquadrina pachyderma in cores located at approximately 43°, 47°, and 54°S across the Polar Frontal Zone in the South Atlantic sector of the Southern Ocean. Comparison of the oxygen isotopic records for peak interglacial conditions during the past 450 kyr reveals that Marine Isotope Stage (MIS) 11 was not substantially warmer than other interglacials at high southern latitudes, although the period of warmth lasted longer. The carbonate and carbon isotope chemistry of surface and deep water represent the truly distinctive aspects of Stage 11 in the Southern Ocean. Peak carbonate production occurred at high southern latitudes during MIS 11, resulting in light-colored, high-carbonate sediments deposited throughout the Southern Ocean above the lysocline. Carbon isotopic values of benthic foraminifera in cores bathed by Circumpolar Deep Water (CPDW) were highest during MIS11, suggesting strong input of North Atlantic Deep Water (NADW) to the Southern Ocean. Planktic delta13C values at high southern latitudes were also highest during MIS 11, which may reflect upwelling of CPDW with a greater contribution of NADW, lower whole-ocean nutrient inventories, higher gas exchange rates, and/or lowered alkalinity of Antarctic surface waters (resulting from carbonate precipitation south of the Polar Front). |
format |
Dataset |
author |
Hodell, David A Charles, Christopher D Ninnemann, Ulysses S |
author_facet |
Hodell, David A Charles, Christopher D Ninnemann, Ulysses S |
author_sort |
Hodell, David A |
title |
Stable carbon and oxygen isotope record of Marine Isotope Stage 11 in the South Atlantic |
title_short |
Stable carbon and oxygen isotope record of Marine Isotope Stage 11 in the South Atlantic |
title_full |
Stable carbon and oxygen isotope record of Marine Isotope Stage 11 in the South Atlantic |
title_fullStr |
Stable carbon and oxygen isotope record of Marine Isotope Stage 11 in the South Atlantic |
title_full_unstemmed |
Stable carbon and oxygen isotope record of Marine Isotope Stage 11 in the South Atlantic |
title_sort |
stable carbon and oxygen isotope record of marine isotope stage 11 in the south atlantic |
publisher |
PANGAEA |
publishDate |
2000 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.742701 https://doi.org/10.1594/PANGAEA.742701 |
op_coverage |
MEDIAN LATITUDE: -44.951400 * MEDIAN LONGITUDE: 7.634375 * SOUTH-BOUND LATITUDE: -47.100000 * WEST-BOUND LONGITUDE: 5.916700 * NORTH-BOUND LATITUDE: -42.913300 * EAST-BOUND LONGITUDE: 8.600000 * DATE/TIME START: 1987-04-25T13:30:00 * DATE/TIME END: 1987-04-26T06:54:00 |
long_lat |
ENVELOPE(5.916700,8.600000,-42.913300,-47.100000) |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic NADW Neogloboquadrina pachyderma North Atlantic Deep Water North Atlantic South Atlantic Ocean Southern Ocean |
genre_facet |
Antarc* Antarctic NADW Neogloboquadrina pachyderma North Atlantic Deep Water North Atlantic South Atlantic Ocean Southern Ocean |
op_source |
Supplement to: Hodell, David A; Charles, Christopher D; Ninnemann, Ulysses S (2000): Comparison of interglacial stages in the South Atlantic sector of the southern ocean for the past 450 kyr: implifications for Marine Isotope Stage (MIS) 11. Global and Planetary Change, 24(1), 7-26, https://doi.org/10.1016/S0921-8181(99)00069-7 |
op_relation |
Hodell, David A (2000): South Atlantic foraminifer stable isotope data, marine isotope stage 11. IGBP PAGES/World Data Center A for Paleoclimatology Data Contribution Series #2000-059. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA, ftp://ftp.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hodell2000/ https://doi.pangaea.de/10.1594/PANGAEA.742701 https://doi.org/10.1594/PANGAEA.742701 |
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.742701 https://doi.org/10.1016/S0921-8181(99)00069-7 |
_version_ |
1766163835766439936 |