Stable isotope record of benthic and planktonic foraminifera in sediment cores of ODP Leg 177, Southern Ocean
While onboard ship during Leg 177, we used variations in sediment physical properties (mainly percent color reflectance) in conjunction with biomagnetostratigraphy to correlate among sites and predict the position of marine isotope stages (MISs) (e.g., see fig. F11 in Shipboard Scientific Party, 199...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.701432 2023-05-15T18:01:07+02:00 Stable isotope record of benthic and planktonic foraminifera in sediment cores of ODP Leg 177, Southern Ocean Hodell, David A Charles, Christopher D Curtis, Jason H Mortyn, P Graham Ninnemann, Ulysses S Venz, Kathryn A MEDIAN LATITUDE: -45.176021 * MEDIAN LONGITUDE: 8.658758 * SOUTH-BOUND LATITUDE: -53.180350 * WEST-BOUND LONGITUDE: 5.130333 * NORTH-BOUND LATITUDE: -40.936333 * EAST-BOUND LONGITUDE: 13.562830 * DATE/TIME START: 1997-12-17T09:45:00 * DATE/TIME END: 1998-01-20T00:00:00 2003-06-02 application/zip, 6 datasets https://doi.pangaea.de/10.1594/PANGAEA.701432 https://doi.org/10.1594/PANGAEA.701432 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.701432 https://doi.org/10.1594/PANGAEA.701432 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; Curtis, Jason H; Mortyn, P Graham; Ninnemann, Ulysses S; Venz, Kathryn A (2003): Data Report: Oxygen isotope stratigraphy of ODP Leg 117 sites 1088, 1089, 1090, 1093, and 1094. In: Gersonde, R; Hodell, DA; Blum, P (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 177, 1-26, https://doi.org/10.2973/odp.proc.sr.177.120.2003 177-1088B 177-1089 177-1090 177-1093 177-1094 COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg177 Ocean Drilling Program ODP PC Piston corer South Atlantic Ocean TN057-6-PC4 Dataset 2003 ftpangaea https://doi.org/10.1594/PANGAEA.701432 https://doi.org/10.2973/odp.proc.sr.177.120.2003 2023-01-20T07:31:13Z While onboard ship during Leg 177, we used variations in sediment physical properties (mainly percent color reflectance) in conjunction with biomagnetostratigraphy to correlate among sites and predict the position of marine isotope stages (MISs) (e.g., see fig. F11 in Shipboard Scientific Party, 1999, p. 45). Our working assumption was that physical properties of Leg 177 sediments are controlled mainly by variations in carbonate content. Previous studies of Southern Ocean sediment cores have shown that carbonate concentrations are relatively high during interglacial stages and low during glacial stages at sites located within the Polar Frontal Zone (PFZ). Today, the PFZ marks a lithologic boundary in underlying sediment separating calcareous oozes to the north and silica-rich facies to the south (Hays et al., 1976). Although there is debate whether the position of the "physical" PFZ actually moved during glacial-interglacial cycles (Charles and Fairbanks, 1990; Matsumoto et al., 2001), the "biochemical" PFZ, as expressed by the CaCO3/opal boundary in sediments, certainly migrated north during glacials and south during interglacials. This gave rise to lithologic variations that are useful for stratigraphic correlation. At Leg 177 sites located north of the PFZ and at sublysoclinal depths, we expected the same pattern of carbonate variation because cores in the Atlantic basin are marked by increased carbonate dissolution during glacial periods and increased preservation during interglacials (Crowley, 1985). Dataset Planktonic foraminifera South Atlantic Ocean Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Fairbanks Southern Ocean ENVELOPE(5.130333,13.562830,-40.936333,-53.180350) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
177-1088B 177-1089 177-1090 177-1093 177-1094 COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg177 Ocean Drilling Program ODP PC Piston corer South Atlantic Ocean TN057-6-PC4 |
spellingShingle |
177-1088B 177-1089 177-1090 177-1093 177-1094 COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg177 Ocean Drilling Program ODP PC Piston corer South Atlantic Ocean TN057-6-PC4 Hodell, David A Charles, Christopher D Curtis, Jason H Mortyn, P Graham Ninnemann, Ulysses S Venz, Kathryn A Stable isotope record of benthic and planktonic foraminifera in sediment cores of ODP Leg 177, Southern Ocean |
topic_facet |
177-1088B 177-1089 177-1090 177-1093 177-1094 COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg177 Ocean Drilling Program ODP PC Piston corer South Atlantic Ocean TN057-6-PC4 |
description |
While onboard ship during Leg 177, we used variations in sediment physical properties (mainly percent color reflectance) in conjunction with biomagnetostratigraphy to correlate among sites and predict the position of marine isotope stages (MISs) (e.g., see fig. F11 in Shipboard Scientific Party, 1999, p. 45). Our working assumption was that physical properties of Leg 177 sediments are controlled mainly by variations in carbonate content. Previous studies of Southern Ocean sediment cores have shown that carbonate concentrations are relatively high during interglacial stages and low during glacial stages at sites located within the Polar Frontal Zone (PFZ). Today, the PFZ marks a lithologic boundary in underlying sediment separating calcareous oozes to the north and silica-rich facies to the south (Hays et al., 1976). Although there is debate whether the position of the "physical" PFZ actually moved during glacial-interglacial cycles (Charles and Fairbanks, 1990; Matsumoto et al., 2001), the "biochemical" PFZ, as expressed by the CaCO3/opal boundary in sediments, certainly migrated north during glacials and south during interglacials. This gave rise to lithologic variations that are useful for stratigraphic correlation. At Leg 177 sites located north of the PFZ and at sublysoclinal depths, we expected the same pattern of carbonate variation because cores in the Atlantic basin are marked by increased carbonate dissolution during glacial periods and increased preservation during interglacials (Crowley, 1985). |
format |
Dataset |
author |
Hodell, David A Charles, Christopher D Curtis, Jason H Mortyn, P Graham Ninnemann, Ulysses S Venz, Kathryn A |
author_facet |
Hodell, David A Charles, Christopher D Curtis, Jason H Mortyn, P Graham Ninnemann, Ulysses S Venz, Kathryn A |
author_sort |
Hodell, David A |
title |
Stable isotope record of benthic and planktonic foraminifera in sediment cores of ODP Leg 177, Southern Ocean |
title_short |
Stable isotope record of benthic and planktonic foraminifera in sediment cores of ODP Leg 177, Southern Ocean |
title_full |
Stable isotope record of benthic and planktonic foraminifera in sediment cores of ODP Leg 177, Southern Ocean |
title_fullStr |
Stable isotope record of benthic and planktonic foraminifera in sediment cores of ODP Leg 177, Southern Ocean |
title_full_unstemmed |
Stable isotope record of benthic and planktonic foraminifera in sediment cores of ODP Leg 177, Southern Ocean |
title_sort |
stable isotope record of benthic and planktonic foraminifera in sediment cores of odp leg 177, southern ocean |
publisher |
PANGAEA |
publishDate |
2003 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.701432 https://doi.org/10.1594/PANGAEA.701432 |
op_coverage |
MEDIAN LATITUDE: -45.176021 * MEDIAN LONGITUDE: 8.658758 * SOUTH-BOUND LATITUDE: -53.180350 * WEST-BOUND LONGITUDE: 5.130333 * NORTH-BOUND LATITUDE: -40.936333 * EAST-BOUND LONGITUDE: 13.562830 * DATE/TIME START: 1997-12-17T09:45:00 * DATE/TIME END: 1998-01-20T00:00:00 |
long_lat |
ENVELOPE(5.130333,13.562830,-40.936333,-53.180350) |
geographic |
Fairbanks Southern Ocean |
geographic_facet |
Fairbanks Southern Ocean |
genre |
Planktonic foraminifera South Atlantic Ocean Southern Ocean |
genre_facet |
Planktonic foraminifera South Atlantic Ocean Southern Ocean |
op_source |
Supplement to: Hodell, David A; Charles, Christopher D; Curtis, Jason H; Mortyn, P Graham; Ninnemann, Ulysses S; Venz, Kathryn A (2003): Data Report: Oxygen isotope stratigraphy of ODP Leg 117 sites 1088, 1089, 1090, 1093, and 1094. In: Gersonde, R; Hodell, DA; Blum, P (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 177, 1-26, https://doi.org/10.2973/odp.proc.sr.177.120.2003 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.701432 https://doi.org/10.1594/PANGAEA.701432 |
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.701432 https://doi.org/10.2973/odp.proc.sr.177.120.2003 |
_version_ |
1766170454390734848 |