Oxygen- and carbon-isotopes of Globigerina bulloides and Neogloboquadrina pachyderma at DSDP Holes 80-548 and 80-549A
Oxygen- and carbon-isotope analyses have been performed on the Quaternary planktonic foraminifers of Sites 548 and 549 (DSDP Leg 80) to investigate major water mass changes that occurred in the northeastern Atlantic at different glacial-interglacial cycles and to compare them with the well-defined p...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.807761 2023-05-15T17:15:00+02:00 Oxygen- and carbon-isotopes of Globigerina bulloides and Neogloboquadrina pachyderma at DSDP Holes 80-548 and 80-549A Vergnaud-Grazzini, Colette Saliège, Jean Francois MEDIAN LATITUDE: 49.002000 * MEDIAN LONGITUDE: -12.631100 * SOUTH-BOUND LATITUDE: 48.915800 * WEST-BOUND LONGITUDE: -13.098200 * NORTH-BOUND LATITUDE: 49.088200 * EAST-BOUND LONGITUDE: -12.164000 * DATE/TIME START: 1981-06-10T00:00:00 * DATE/TIME END: 1981-06-15T00:00:00 1985-02-22 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.807761 https://doi.org/10.1594/PANGAEA.807761 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.807761 https://doi.org/10.1594/PANGAEA.807761 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Vergnaud-Grazzini, Colette; Saliège, Jean Francois (1985): Pleistocene climatic changes in surface waters of the northeastern Atlantic: Oxygen and carbon isotopic compositions of planktonic foraminifers at Deep Sea Drilling Project Sites 548 and 549. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 793-803, https://doi.org/10.2973/dsdp.proc.80.130.1985 Deep Sea Drilling Project DSDP Dataset 1985 ftpangaea https://doi.org/10.1594/PANGAEA.807761 https://doi.org/10.2973/dsdp.proc.80.130.1985 2023-01-20T07:32:54Z Oxygen- and carbon-isotope analyses have been performed on the Quaternary planktonic foraminifers of Sites 548 and 549 (DSDP Leg 80) to investigate major water mass changes that occurred in the northeastern Atlantic at different glacial-interglacial cycles and to compare them with the well-defined picture of 18,000 yr. ago. Oxygen-isotope stratigraphy also provides a chronological framework for the more important data on the fauna and flora. Although bioturbation and sedimentary gaps obliterate the climatic and stratigraphic record, general trends in the oceanographic history can be deduced from the isotopic data. Isotopic stratigraphy has tentatively been delineated down to isotopic Stage 16 at Site 548 and in Hole 549A. This stratigraphy fits well with that deduced from benthic foraminiferal d18O changes and with bioclimatic zonations based on foraminiferal associations at Site 549. Variations in the geographic extension and in the flux of the Gulf Stream subtropical waters are inferred from both d18O and d13C changes. Maximal fluxes occurred during the late Pliocene. Northward extension of subtropical waters increased through the various interglacial phases of the early Pleistocene and decreased through the late Pleistocene interglacial phases. Conversely, glacial maxima were more intense after Stage 16. Isotopic Stages 12 and 16 mark times of important change in water mass circulation. Oxygen- and carbon-isotope analyses have been performed on the Quaternary planktonic foraminifers of Sites 548 and 549 (DSDP Leg 80) to investigate major water mass changes that occurred in the northeastern Atlantic at different glacial-interglacial cycles and to compare them with the well-defined picture of 18,000 yr. ago. Oxygen-isotope stratigraphy also provides a chronological framework for the more important data on the fauna and flora. Although bioturbation and sedimentary gaps obliterate the climatic and stratigraphic record, general trends in the oceanographic history can be deduced from the isotopic data. Isotopic ... Dataset Neogloboquadrina pachyderma PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-13.098200,-12.164000,49.088200,48.915800) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Deep Sea Drilling Project DSDP |
spellingShingle |
Deep Sea Drilling Project DSDP Vergnaud-Grazzini, Colette Saliège, Jean Francois Oxygen- and carbon-isotopes of Globigerina bulloides and Neogloboquadrina pachyderma at DSDP Holes 80-548 and 80-549A |
topic_facet |
Deep Sea Drilling Project DSDP |
description |
Oxygen- and carbon-isotope analyses have been performed on the Quaternary planktonic foraminifers of Sites 548 and 549 (DSDP Leg 80) to investigate major water mass changes that occurred in the northeastern Atlantic at different glacial-interglacial cycles and to compare them with the well-defined picture of 18,000 yr. ago. Oxygen-isotope stratigraphy also provides a chronological framework for the more important data on the fauna and flora. Although bioturbation and sedimentary gaps obliterate the climatic and stratigraphic record, general trends in the oceanographic history can be deduced from the isotopic data. Isotopic stratigraphy has tentatively been delineated down to isotopic Stage 16 at Site 548 and in Hole 549A. This stratigraphy fits well with that deduced from benthic foraminiferal d18O changes and with bioclimatic zonations based on foraminiferal associations at Site 549. Variations in the geographic extension and in the flux of the Gulf Stream subtropical waters are inferred from both d18O and d13C changes. Maximal fluxes occurred during the late Pliocene. Northward extension of subtropical waters increased through the various interglacial phases of the early Pleistocene and decreased through the late Pleistocene interglacial phases. Conversely, glacial maxima were more intense after Stage 16. Isotopic Stages 12 and 16 mark times of important change in water mass circulation. Oxygen- and carbon-isotope analyses have been performed on the Quaternary planktonic foraminifers of Sites 548 and 549 (DSDP Leg 80) to investigate major water mass changes that occurred in the northeastern Atlantic at different glacial-interglacial cycles and to compare them with the well-defined picture of 18,000 yr. ago. Oxygen-isotope stratigraphy also provides a chronological framework for the more important data on the fauna and flora. Although bioturbation and sedimentary gaps obliterate the climatic and stratigraphic record, general trends in the oceanographic history can be deduced from the isotopic data. Isotopic ... |
format |
Dataset |
author |
Vergnaud-Grazzini, Colette Saliège, Jean Francois |
author_facet |
Vergnaud-Grazzini, Colette Saliège, Jean Francois |
author_sort |
Vergnaud-Grazzini, Colette |
title |
Oxygen- and carbon-isotopes of Globigerina bulloides and Neogloboquadrina pachyderma at DSDP Holes 80-548 and 80-549A |
title_short |
Oxygen- and carbon-isotopes of Globigerina bulloides and Neogloboquadrina pachyderma at DSDP Holes 80-548 and 80-549A |
title_full |
Oxygen- and carbon-isotopes of Globigerina bulloides and Neogloboquadrina pachyderma at DSDP Holes 80-548 and 80-549A |
title_fullStr |
Oxygen- and carbon-isotopes of Globigerina bulloides and Neogloboquadrina pachyderma at DSDP Holes 80-548 and 80-549A |
title_full_unstemmed |
Oxygen- and carbon-isotopes of Globigerina bulloides and Neogloboquadrina pachyderma at DSDP Holes 80-548 and 80-549A |
title_sort |
oxygen- and carbon-isotopes of globigerina bulloides and neogloboquadrina pachyderma at dsdp holes 80-548 and 80-549a |
publisher |
PANGAEA |
publishDate |
1985 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.807761 https://doi.org/10.1594/PANGAEA.807761 |
op_coverage |
MEDIAN LATITUDE: 49.002000 * MEDIAN LONGITUDE: -12.631100 * SOUTH-BOUND LATITUDE: 48.915800 * WEST-BOUND LONGITUDE: -13.098200 * NORTH-BOUND LATITUDE: 49.088200 * EAST-BOUND LONGITUDE: -12.164000 * DATE/TIME START: 1981-06-10T00:00:00 * DATE/TIME END: 1981-06-15T00:00:00 |
long_lat |
ENVELOPE(-13.098200,-12.164000,49.088200,48.915800) |
genre |
Neogloboquadrina pachyderma |
genre_facet |
Neogloboquadrina pachyderma |
op_source |
Supplement to: Vergnaud-Grazzini, Colette; Saliège, Jean Francois (1985): Pleistocene climatic changes in surface waters of the northeastern Atlantic: Oxygen and carbon isotopic compositions of planktonic foraminifers at Deep Sea Drilling Project Sites 548 and 549. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 793-803, https://doi.org/10.2973/dsdp.proc.80.130.1985 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.807761 https://doi.org/10.1594/PANGAEA.807761 |
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.807761 https://doi.org/10.2973/dsdp.proc.80.130.1985 |
_version_ |
1766073147544567808 |