Stable carbon and oxygen isotope ratios of foraminifera from Cretaceous and Paleocene sediments
Detailed analysis of over 200 samples of uppermost Cretaceous and Paleocene sediments from Atlantic Ocean DSDP Sites 384, 86, 95, 152, 144, 20C, 21, 356, 357, and 329 provides new information on the temperature stratification of Paleocene planktonic foraminifera, the temperature and carbon isotopic...
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1979
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.726830 2023-05-15T17:33:16+02:00 Stable carbon and oxygen isotope ratios of foraminifera from Cretaceous and Paleocene sediments Boersma, Anne Shackleton, Nicholas J Hall, Michael A Given, Quentin MEDIAN LATITUDE: 4.509145 * MEDIAN LONGITUDE: -58.391523 * SOUTH-BOUND LATITUDE: -30.004200 * WEST-BOUND LONGITUDE: -113.995200 * NORTH-BOUND LATITUDE: 40.360800 * EAST-BOUND LONGITUDE: -26.845500 * DATE/TIME START: 1969-01-09T00:00:00 * DATE/TIME END: 1978-11-18T00:00:00 1979-08-26 application/zip, 5 datasets https://doi.pangaea.de/10.1594/PANGAEA.726830 https://doi.org/10.1594/PANGAEA.726830 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.726830 https://doi.org/10.1594/PANGAEA.726830 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Boersma, Anne; Shackleton, Nicholas J; Hall, Michael A; Given, Quentin (1979): Carbon and oxygen isotope records at DSDP Site 384 (North Atlantic) and some Paleocene paleotemperatures and carbon isotope variations in the Atlantic Ocean. In: Tucholke, B.E., Vogt, P.R., et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Government Print Office), 43, 695-717, https://doi.org/10.2973/dsdp.proc.43.131.1979 10-86 10-94 10-95 14-144A 3-20C 3-21 39-356 39-357 43-384 63-472 Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Gulf of Mexico/BENCH Gulf of Mexico/SCARP Leg10 Leg14 Leg3 Leg39 Leg43 Leg63 North Atlantic/CONT RISE North Atlantic/RIDGE North Pacific/PLATEAU South Atlantic/CONT RISE South Atlantic/PLATEAU South Atlantic/VALLEY Dataset 1979 ftpangaea https://doi.org/10.1594/PANGAEA.726830 https://doi.org/10.2973/dsdp.proc.43.131.1979 2023-01-20T07:31:29Z Detailed analysis of over 200 samples of uppermost Cretaceous and Paleocene sediments from Atlantic Ocean DSDP Sites 384, 86, 95, 152, 144, 20C, 21, 356, 357, and 329 provides new information on the temperature stratification of Paleocene planktonic foraminifera, the temperature and carbon isotopic changes across the Cretaceous/Tertiary boundary, and the fluctuating temperature and carbon isotopic records through the Paleocene ~64.5-54 m.y.). There was a significant temperature rise across the Cretaceous/Tertiary boundary both at the surface and in deep waters of the Atlantic Ocean. This temperature rise occurred before the basal Tertiary 'Globigerina' eugubina Zone, so that in the oldest Paleocene sample yet analyzed from the deep sea (Site 356) temperatures are already three degrees higher at the bottom and at the surface than in the Cretaceous. The temperature rise across the boundaryis more pronounced on the bottom and in samples from higher latitudes. Accompanying the temperature rise across the boundary there is a significant shift in the carbon isotope profile. In the basal Paleocene the foraminifera of the surface zone demonstrate very negative carbon isotope values (unlike in the Cretaceous of today's ocean), while deeper dwelling species have more positive values which then decrease to the bottom. The unusual carbon isotope gradients persist through the first three million years of the Paleocene until towards the top of planktonic foraminiferal Zone P.1 (G. trinidadensis Zone) the foraminifera record a profile more positive at the surface and decreasing towards the bottom (as in today's ocean). During the Paleocene there are two noteworthy rises in surface water temperature; the first around 62-61 m.y. (G. trinidadensis Zone), and the second near the base of the Globorotalia angulata Zone, 60-59 m.y. At this time surface temperatures at low to mid latitudes reached values near 25°C, while at mid-latitude Site 384 temperature highs near 22°C were registered. At a sample spacing of around one per million ... Dataset North Atlantic Planktonic foraminifera PANGAEA - Data Publisher for Earth & Environmental Science Pacific ENVELOPE(-113.995200,-26.845500,40.360800,-30.004200) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
10-86 10-94 10-95 14-144A 3-20C 3-21 39-356 39-357 43-384 63-472 Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Gulf of Mexico/BENCH Gulf of Mexico/SCARP Leg10 Leg14 Leg3 Leg39 Leg43 Leg63 North Atlantic/CONT RISE North Atlantic/RIDGE North Pacific/PLATEAU South Atlantic/CONT RISE South Atlantic/PLATEAU South Atlantic/VALLEY |
spellingShingle |
10-86 10-94 10-95 14-144A 3-20C 3-21 39-356 39-357 43-384 63-472 Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Gulf of Mexico/BENCH Gulf of Mexico/SCARP Leg10 Leg14 Leg3 Leg39 Leg43 Leg63 North Atlantic/CONT RISE North Atlantic/RIDGE North Pacific/PLATEAU South Atlantic/CONT RISE South Atlantic/PLATEAU South Atlantic/VALLEY Boersma, Anne Shackleton, Nicholas J Hall, Michael A Given, Quentin Stable carbon and oxygen isotope ratios of foraminifera from Cretaceous and Paleocene sediments |
topic_facet |
10-86 10-94 10-95 14-144A 3-20C 3-21 39-356 39-357 43-384 63-472 Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Gulf of Mexico/BENCH Gulf of Mexico/SCARP Leg10 Leg14 Leg3 Leg39 Leg43 Leg63 North Atlantic/CONT RISE North Atlantic/RIDGE North Pacific/PLATEAU South Atlantic/CONT RISE South Atlantic/PLATEAU South Atlantic/VALLEY |
description |
Detailed analysis of over 200 samples of uppermost Cretaceous and Paleocene sediments from Atlantic Ocean DSDP Sites 384, 86, 95, 152, 144, 20C, 21, 356, 357, and 329 provides new information on the temperature stratification of Paleocene planktonic foraminifera, the temperature and carbon isotopic changes across the Cretaceous/Tertiary boundary, and the fluctuating temperature and carbon isotopic records through the Paleocene ~64.5-54 m.y.). There was a significant temperature rise across the Cretaceous/Tertiary boundary both at the surface and in deep waters of the Atlantic Ocean. This temperature rise occurred before the basal Tertiary 'Globigerina' eugubina Zone, so that in the oldest Paleocene sample yet analyzed from the deep sea (Site 356) temperatures are already three degrees higher at the bottom and at the surface than in the Cretaceous. The temperature rise across the boundaryis more pronounced on the bottom and in samples from higher latitudes. Accompanying the temperature rise across the boundary there is a significant shift in the carbon isotope profile. In the basal Paleocene the foraminifera of the surface zone demonstrate very negative carbon isotope values (unlike in the Cretaceous of today's ocean), while deeper dwelling species have more positive values which then decrease to the bottom. The unusual carbon isotope gradients persist through the first three million years of the Paleocene until towards the top of planktonic foraminiferal Zone P.1 (G. trinidadensis Zone) the foraminifera record a profile more positive at the surface and decreasing towards the bottom (as in today's ocean). During the Paleocene there are two noteworthy rises in surface water temperature; the first around 62-61 m.y. (G. trinidadensis Zone), and the second near the base of the Globorotalia angulata Zone, 60-59 m.y. At this time surface temperatures at low to mid latitudes reached values near 25°C, while at mid-latitude Site 384 temperature highs near 22°C were registered. At a sample spacing of around one per million ... |
format |
Dataset |
author |
Boersma, Anne Shackleton, Nicholas J Hall, Michael A Given, Quentin |
author_facet |
Boersma, Anne Shackleton, Nicholas J Hall, Michael A Given, Quentin |
author_sort |
Boersma, Anne |
title |
Stable carbon and oxygen isotope ratios of foraminifera from Cretaceous and Paleocene sediments |
title_short |
Stable carbon and oxygen isotope ratios of foraminifera from Cretaceous and Paleocene sediments |
title_full |
Stable carbon and oxygen isotope ratios of foraminifera from Cretaceous and Paleocene sediments |
title_fullStr |
Stable carbon and oxygen isotope ratios of foraminifera from Cretaceous and Paleocene sediments |
title_full_unstemmed |
Stable carbon and oxygen isotope ratios of foraminifera from Cretaceous and Paleocene sediments |
title_sort |
stable carbon and oxygen isotope ratios of foraminifera from cretaceous and paleocene sediments |
publisher |
PANGAEA |
publishDate |
1979 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.726830 https://doi.org/10.1594/PANGAEA.726830 |
op_coverage |
MEDIAN LATITUDE: 4.509145 * MEDIAN LONGITUDE: -58.391523 * SOUTH-BOUND LATITUDE: -30.004200 * WEST-BOUND LONGITUDE: -113.995200 * NORTH-BOUND LATITUDE: 40.360800 * EAST-BOUND LONGITUDE: -26.845500 * DATE/TIME START: 1969-01-09T00:00:00 * DATE/TIME END: 1978-11-18T00:00:00 |
long_lat |
ENVELOPE(-113.995200,-26.845500,40.360800,-30.004200) |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic Planktonic foraminifera |
genre_facet |
North Atlantic Planktonic foraminifera |
op_source |
Supplement to: Boersma, Anne; Shackleton, Nicholas J; Hall, Michael A; Given, Quentin (1979): Carbon and oxygen isotope records at DSDP Site 384 (North Atlantic) and some Paleocene paleotemperatures and carbon isotope variations in the Atlantic Ocean. In: Tucholke, B.E., Vogt, P.R., et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Government Print Office), 43, 695-717, https://doi.org/10.2973/dsdp.proc.43.131.1979 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.726830 https://doi.org/10.1594/PANGAEA.726830 |
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.726830 https://doi.org/10.2973/dsdp.proc.43.131.1979 |
_version_ |
1766131732361248768 |