Comparing Seawater Temperature Proxy Records for the Past 90 Myrs From the Shallow Shelf Record Bass River, New Jersey
We present a multiproxy (foraminifer Mg/Ca, δ 18 O, ∆ 47 , and Sr/Ca, and biomarker TEX 86 H , MAT mrs ) low-resolution paleotemperature record based on seven sets of high-resolution time series from the late Cretaceous to Miocene from the Ocean Drilling Program Bass River site, New Jersey Shelf, No...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/380612 2023-07-23T04:20:42+02:00 Comparing Seawater Temperature Proxy Records for the Past 90 Myrs From the Shallow Shelf Record Bass River, New Jersey de Bar, M. W. de Nooijer, L. J. Schouten, S. Ziegler, M. Sluijs, A. Reichart, G.-J. Organic geochemistry Stratigraphy and paleontology Marine palynology and palaeoceanography Paleoenvironments and paleoclimate 2019-04 image/pdf https://dspace.library.uu.nl/handle/1874/380612 en eng 2572-4517 https://dspace.library.uu.nl/handle/1874/380612 info:eu-repo/semantics/OpenAccess Oceanography Atmospheric Science Palaeontology Article 2019 ftunivutrecht 2023-07-02T02:46:47Z We present a multiproxy (foraminifer Mg/Ca, δ 18 O, ∆ 47 , and Sr/Ca, and biomarker TEX 86 H , MAT mrs ) low-resolution paleotemperature record based on seven sets of high-resolution time series from the late Cretaceous to Miocene from the Ocean Drilling Program Bass River site, New Jersey Shelf, North Atlantic. Along with insight into long-term climate evolution, this allows testing for internal consistency between proxies. The bottom water temperatures (BWTs) reconstructed using benthic δ 18 O and Mg/Ca values show good agreement in recorded trends with the TEX 86 H sea surface and shallow subsurface temperature record, and with the stacked global benthic oxygen isotope record. The Mg/Ca-based BWTs are higher than the δ 18 O-based BWTs, likely due to uncertainty in the assumptions associated with the Mg/Ca calibration to seawater Mg/Ca. Absolute δ 18 O-based BWT reconstructions are supported by clumped isotope paleothermometry. The agreement in main trends of the independent paleotemperature proxies indicates that the underlying assumed mechanisms for the different proxy relations to temperature stayed largely intact back to at least 90 Ma. Consistent differences in absolute temperature values highlight, however, that a better understanding of the individual proxies is required in order to achieve accurate absolute temperature reconstructions. Article in Journal/Newspaper North Atlantic Utrecht University Repository |
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Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
topic |
Oceanography Atmospheric Science Palaeontology |
spellingShingle |
Oceanography Atmospheric Science Palaeontology de Bar, M. W. de Nooijer, L. J. Schouten, S. Ziegler, M. Sluijs, A. Reichart, G.-J. Comparing Seawater Temperature Proxy Records for the Past 90 Myrs From the Shallow Shelf Record Bass River, New Jersey |
topic_facet |
Oceanography Atmospheric Science Palaeontology |
description |
We present a multiproxy (foraminifer Mg/Ca, δ 18 O, ∆ 47 , and Sr/Ca, and biomarker TEX 86 H , MAT mrs ) low-resolution paleotemperature record based on seven sets of high-resolution time series from the late Cretaceous to Miocene from the Ocean Drilling Program Bass River site, New Jersey Shelf, North Atlantic. Along with insight into long-term climate evolution, this allows testing for internal consistency between proxies. The bottom water temperatures (BWTs) reconstructed using benthic δ 18 O and Mg/Ca values show good agreement in recorded trends with the TEX 86 H sea surface and shallow subsurface temperature record, and with the stacked global benthic oxygen isotope record. The Mg/Ca-based BWTs are higher than the δ 18 O-based BWTs, likely due to uncertainty in the assumptions associated with the Mg/Ca calibration to seawater Mg/Ca. Absolute δ 18 O-based BWT reconstructions are supported by clumped isotope paleothermometry. The agreement in main trends of the independent paleotemperature proxies indicates that the underlying assumed mechanisms for the different proxy relations to temperature stayed largely intact back to at least 90 Ma. Consistent differences in absolute temperature values highlight, however, that a better understanding of the individual proxies is required in order to achieve accurate absolute temperature reconstructions. |
author2 |
Organic geochemistry Stratigraphy and paleontology Marine palynology and palaeoceanography Paleoenvironments and paleoclimate |
format |
Article in Journal/Newspaper |
author |
de Bar, M. W. de Nooijer, L. J. Schouten, S. Ziegler, M. Sluijs, A. Reichart, G.-J. |
author_facet |
de Bar, M. W. de Nooijer, L. J. Schouten, S. Ziegler, M. Sluijs, A. Reichart, G.-J. |
author_sort |
de Bar, M. W. |
title |
Comparing Seawater Temperature Proxy Records for the Past 90 Myrs From the Shallow Shelf Record Bass River, New Jersey |
title_short |
Comparing Seawater Temperature Proxy Records for the Past 90 Myrs From the Shallow Shelf Record Bass River, New Jersey |
title_full |
Comparing Seawater Temperature Proxy Records for the Past 90 Myrs From the Shallow Shelf Record Bass River, New Jersey |
title_fullStr |
Comparing Seawater Temperature Proxy Records for the Past 90 Myrs From the Shallow Shelf Record Bass River, New Jersey |
title_full_unstemmed |
Comparing Seawater Temperature Proxy Records for the Past 90 Myrs From the Shallow Shelf Record Bass River, New Jersey |
title_sort |
comparing seawater temperature proxy records for the past 90 myrs from the shallow shelf record bass river, new jersey |
publishDate |
2019 |
url |
https://dspace.library.uu.nl/handle/1874/380612 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
2572-4517 https://dspace.library.uu.nl/handle/1874/380612 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1772185338871021568 |