Stable carbon and oxygen isotope ratios of planktonic foraminifera in upper Miocene to Holocene sediments of ODP Leg 105 sites ...
Oxygen and carbon isotopic compositions of planktonic foraminifers Neogloboquadrina pachyderma and N. atlantica were determined at approximately 150-cm intervals through late Pliocene to Holocene sediments in Hole 647A and late Miocene to Holocene sediments in Hole 646B. The isotopic record shows an...
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ftdatacite:10.1594/pangaea.744963 2023-05-15T17:06:11+02:00 Stable carbon and oxygen isotope ratios of planktonic foraminifera in upper Miocene to Holocene sediments of ODP Leg 105 sites ... Aksu, Ali E Hillaire-Marcel, Claude 1989 application/zip https://dx.doi.org/10.1594/pangaea.744963 https://doi.pangaea.de/10.1594/PANGAEA.744963 en eng PANGAEA https://dx.doi.org/10.2973/odp.proc.sr.105.139.1989 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Composite Core Drilling/drill rig Leg105 Joides Resolution Ocean Drilling Program ODP article Collection Supplementary Publication Series of Datasets 1989 ftdatacite https://doi.org/10.1594/pangaea.74496310.2973/odp.proc.sr.105.139.1989 2023-04-03T13:12:12Z Oxygen and carbon isotopic compositions of planktonic foraminifers Neogloboquadrina pachyderma and N. atlantica were determined at approximately 150-cm intervals through late Pliocene to Holocene sediments in Hole 647A and late Miocene to Holocene sediments in Hole 646B. The isotopic record shows an overall enrichment of about 4.0 per mil in d18O and 1.0 per mil in d13C from the base to top of Hole 646B. In general, this enrichment probably represents the progressive climatic cooling that started in the middle and late Miocene, continued throughout the Pliocene, and led to the Pleistocene glaciations. The d18O values in sediments from approximately 2.66 to 2.42 Ma show a considerable enrichment (~2.5 per mil) and little change in the d13C values, which probably reflects significant long-term ice storage in the Northern Hemisphere. We interpreted enrichments of ~1.5 per mil in d18O and ~1.0 per mil in d13C at -3.2 Ma, associated with minor ice-rafted material, as substantial cooling of surface waters in the ... : Supplement to: Aksu, Ali E; Hillaire-Marcel, Claude (1989): Upper Miocene to Holocene oxygen and carbon isotopic stratigraphy of sites 646 and 647, Labrador Sea. In: Srivastava, SP; Arthur, M; Clement, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 105, 689-704 ... Article in Journal/Newspaper Labrador Sea Neogloboquadrina pachyderma Planktonic foraminifera DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Composite Core Drilling/drill rig Leg105 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Composite Core Drilling/drill rig Leg105 Joides Resolution Ocean Drilling Program ODP Aksu, Ali E Hillaire-Marcel, Claude Stable carbon and oxygen isotope ratios of planktonic foraminifera in upper Miocene to Holocene sediments of ODP Leg 105 sites ... |
topic_facet |
Composite Core Drilling/drill rig Leg105 Joides Resolution Ocean Drilling Program ODP |
description |
Oxygen and carbon isotopic compositions of planktonic foraminifers Neogloboquadrina pachyderma and N. atlantica were determined at approximately 150-cm intervals through late Pliocene to Holocene sediments in Hole 647A and late Miocene to Holocene sediments in Hole 646B. The isotopic record shows an overall enrichment of about 4.0 per mil in d18O and 1.0 per mil in d13C from the base to top of Hole 646B. In general, this enrichment probably represents the progressive climatic cooling that started in the middle and late Miocene, continued throughout the Pliocene, and led to the Pleistocene glaciations. The d18O values in sediments from approximately 2.66 to 2.42 Ma show a considerable enrichment (~2.5 per mil) and little change in the d13C values, which probably reflects significant long-term ice storage in the Northern Hemisphere. We interpreted enrichments of ~1.5 per mil in d18O and ~1.0 per mil in d13C at -3.2 Ma, associated with minor ice-rafted material, as substantial cooling of surface waters in the ... : Supplement to: Aksu, Ali E; Hillaire-Marcel, Claude (1989): Upper Miocene to Holocene oxygen and carbon isotopic stratigraphy of sites 646 and 647, Labrador Sea. In: Srivastava, SP; Arthur, M; Clement, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 105, 689-704 ... |
format |
Article in Journal/Newspaper |
author |
Aksu, Ali E Hillaire-Marcel, Claude |
author_facet |
Aksu, Ali E Hillaire-Marcel, Claude |
author_sort |
Aksu, Ali E |
title |
Stable carbon and oxygen isotope ratios of planktonic foraminifera in upper Miocene to Holocene sediments of ODP Leg 105 sites ... |
title_short |
Stable carbon and oxygen isotope ratios of planktonic foraminifera in upper Miocene to Holocene sediments of ODP Leg 105 sites ... |
title_full |
Stable carbon and oxygen isotope ratios of planktonic foraminifera in upper Miocene to Holocene sediments of ODP Leg 105 sites ... |
title_fullStr |
Stable carbon and oxygen isotope ratios of planktonic foraminifera in upper Miocene to Holocene sediments of ODP Leg 105 sites ... |
title_full_unstemmed |
Stable carbon and oxygen isotope ratios of planktonic foraminifera in upper Miocene to Holocene sediments of ODP Leg 105 sites ... |
title_sort |
stable carbon and oxygen isotope ratios of planktonic foraminifera in upper miocene to holocene sediments of odp leg 105 sites ... |
publisher |
PANGAEA |
publishDate |
1989 |
url |
https://dx.doi.org/10.1594/pangaea.744963 https://doi.pangaea.de/10.1594/PANGAEA.744963 |
genre |
Labrador Sea Neogloboquadrina pachyderma Planktonic foraminifera |
genre_facet |
Labrador Sea Neogloboquadrina pachyderma Planktonic foraminifera |
op_relation |
https://dx.doi.org/10.2973/odp.proc.sr.105.139.1989 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.74496310.2973/odp.proc.sr.105.139.1989 |
_version_ |
1766061194051846144 |