Auxiliary material and basic geochemical and benthic foraminiferal stable isotope data for the interval bracketing Eocene Thermal Maximum 2 (ETM2) at DSDP Sites 401 and 550 in the northeastern Atlantic Ocean
Ever since its discovery, Eocene Thermal Maximum 2 (ETM2; ~53.7 Ma) has been considered as one of the "little brothers" of the Paleocene-Eocene Thermal Maximum (PETM; ~56 Ma) as it displays similar characteristics including abrupt warming, ocean acidification, and biotic shifts. One of the...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.833010 2023-05-15T17:51:56+02:00 Auxiliary material and basic geochemical and benthic foraminiferal stable isotope data for the interval bracketing Eocene Thermal Maximum 2 (ETM2) at DSDP Sites 401 and 550 in the northeastern Atlantic Ocean D'haenens, Simon Bornemann, André Claeys, Philippe Röhl, Ursula Steurbaut, Etienne Speijer, Robert P MEDIAN LATITUDE: 36.847259 * MEDIAN LONGITUDE: -13.395567 * SOUTH-BOUND LATITUDE: -65.160667 * WEST-BOUND LONGITUDE: -76.357750 * NORTH-BOUND LATITUDE: 48.515200 * EAST-BOUND LONGITUDE: 2.779567 * DATE/TIME START: 1976-06-06T00:00:00 * DATE/TIME END: 2003-04-05T00:00:00 2014-05-27 application/zip, 9 datasets https://doi.pangaea.de/10.1594/PANGAEA.833010 https://doi.org/10.1594/PANGAEA.833010 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.833010 https://doi.org/10.1594/PANGAEA.833010 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: D'haenens, Simon; Bornemann, André; Claeys, Philippe; Röhl, Ursula; Steurbaut, Etienne; Speijer, Robert P (2014): A transient deep-sea circulation switch during Eocene Thermal Maximum 2. Paleoceanography, https://doi.org/10.1002/2013PA002567 Deep Sea Drilling Project DSDP Dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.833010 https://doi.org/10.1002/2013PA002567 2023-01-20T07:33:17Z Ever since its discovery, Eocene Thermal Maximum 2 (ETM2; ~53.7 Ma) has been considered as one of the "little brothers" of the Paleocene-Eocene Thermal Maximum (PETM; ~56 Ma) as it displays similar characteristics including abrupt warming, ocean acidification, and biotic shifts. One of the remaining key questions is what effect these lesser climate perturbations had on ocean circulation and ventilation and, ultimately, biotic disruptions. Here we characterize ETM2 sections of the NE Atlantic (Deep Sea Drilling Project Sites 401 and 550) using multispecies benthic foraminiferal stable isotopes, grain size analysis, XRF core scanning, and carbonate content. The magnitude of the carbon isotope excursion (0.85-1.10 per mil) and bottom water warming (2-2.5°C) during ETM2 seems slightly smaller than in South Atlantic records. The comparison of the lateral d13C gradient between the North and South Atlantic reveals that a transient circulation switch took place during ETM2, a similar pattern as observed for the PETM. New grain size and published faunal data support this hypothesis by indicating a reduction in deepwater current velocity. Following ETM2, we record a distinct intensification of bottom water currents influencing Atlantic carbonate accumulation and biotic communities, while a dramatic and persistent clay reduction hints at a weakening of the regional hydrological cycle. Our findings highlight the similarities and differences between the PETM and ETM2. Moreover, the heterogeneity of hyperthermal expression emphasizes the need to specifically characterize each hyperthermal event and its background conditions to minimalize artifacts in global climate and carbonate burial models for the early Paleogene. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-76.357750,2.779567,48.515200,-65.160667) |
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 D'haenens, Simon Bornemann, André Claeys, Philippe Röhl, Ursula Steurbaut, Etienne Speijer, Robert P Auxiliary material and basic geochemical and benthic foraminiferal stable isotope data for the interval bracketing Eocene Thermal Maximum 2 (ETM2) at DSDP Sites 401 and 550 in the northeastern Atlantic Ocean |
topic_facet |
Deep Sea Drilling Project DSDP |
description |
Ever since its discovery, Eocene Thermal Maximum 2 (ETM2; ~53.7 Ma) has been considered as one of the "little brothers" of the Paleocene-Eocene Thermal Maximum (PETM; ~56 Ma) as it displays similar characteristics including abrupt warming, ocean acidification, and biotic shifts. One of the remaining key questions is what effect these lesser climate perturbations had on ocean circulation and ventilation and, ultimately, biotic disruptions. Here we characterize ETM2 sections of the NE Atlantic (Deep Sea Drilling Project Sites 401 and 550) using multispecies benthic foraminiferal stable isotopes, grain size analysis, XRF core scanning, and carbonate content. The magnitude of the carbon isotope excursion (0.85-1.10 per mil) and bottom water warming (2-2.5°C) during ETM2 seems slightly smaller than in South Atlantic records. The comparison of the lateral d13C gradient between the North and South Atlantic reveals that a transient circulation switch took place during ETM2, a similar pattern as observed for the PETM. New grain size and published faunal data support this hypothesis by indicating a reduction in deepwater current velocity. Following ETM2, we record a distinct intensification of bottom water currents influencing Atlantic carbonate accumulation and biotic communities, while a dramatic and persistent clay reduction hints at a weakening of the regional hydrological cycle. Our findings highlight the similarities and differences between the PETM and ETM2. Moreover, the heterogeneity of hyperthermal expression emphasizes the need to specifically characterize each hyperthermal event and its background conditions to minimalize artifacts in global climate and carbonate burial models for the early Paleogene. |
format |
Dataset |
author |
D'haenens, Simon Bornemann, André Claeys, Philippe Röhl, Ursula Steurbaut, Etienne Speijer, Robert P |
author_facet |
D'haenens, Simon Bornemann, André Claeys, Philippe Röhl, Ursula Steurbaut, Etienne Speijer, Robert P |
author_sort |
D'haenens, Simon |
title |
Auxiliary material and basic geochemical and benthic foraminiferal stable isotope data for the interval bracketing Eocene Thermal Maximum 2 (ETM2) at DSDP Sites 401 and 550 in the northeastern Atlantic Ocean |
title_short |
Auxiliary material and basic geochemical and benthic foraminiferal stable isotope data for the interval bracketing Eocene Thermal Maximum 2 (ETM2) at DSDP Sites 401 and 550 in the northeastern Atlantic Ocean |
title_full |
Auxiliary material and basic geochemical and benthic foraminiferal stable isotope data for the interval bracketing Eocene Thermal Maximum 2 (ETM2) at DSDP Sites 401 and 550 in the northeastern Atlantic Ocean |
title_fullStr |
Auxiliary material and basic geochemical and benthic foraminiferal stable isotope data for the interval bracketing Eocene Thermal Maximum 2 (ETM2) at DSDP Sites 401 and 550 in the northeastern Atlantic Ocean |
title_full_unstemmed |
Auxiliary material and basic geochemical and benthic foraminiferal stable isotope data for the interval bracketing Eocene Thermal Maximum 2 (ETM2) at DSDP Sites 401 and 550 in the northeastern Atlantic Ocean |
title_sort |
auxiliary material and basic geochemical and benthic foraminiferal stable isotope data for the interval bracketing eocene thermal maximum 2 (etm2) at dsdp sites 401 and 550 in the northeastern atlantic ocean |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.833010 https://doi.org/10.1594/PANGAEA.833010 |
op_coverage |
MEDIAN LATITUDE: 36.847259 * MEDIAN LONGITUDE: -13.395567 * SOUTH-BOUND LATITUDE: -65.160667 * WEST-BOUND LONGITUDE: -76.357750 * NORTH-BOUND LATITUDE: 48.515200 * EAST-BOUND LONGITUDE: 2.779567 * DATE/TIME START: 1976-06-06T00:00:00 * DATE/TIME END: 2003-04-05T00:00:00 |
long_lat |
ENVELOPE(-76.357750,2.779567,48.515200,-65.160667) |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: D'haenens, Simon; Bornemann, André; Claeys, Philippe; Röhl, Ursula; Steurbaut, Etienne; Speijer, Robert P (2014): A transient deep-sea circulation switch during Eocene Thermal Maximum 2. Paleoceanography, https://doi.org/10.1002/2013PA002567 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.833010 https://doi.org/10.1594/PANGAEA.833010 |
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.833010 https://doi.org/10.1002/2013PA002567 |
_version_ |
1766159229415063552 |