Stable isotope ratios, and trace elements from Pacific and S. Atlantic mid-latitudes across Eocene Thermal Maximum 2 and the Paleocene-Eocene Thermal Maximum
Eocene Thermal Maximum 2 (ETM‐2; 54.1 Ma) was the second largest Eocene hyperthermal. Like the Paleocene‐Eocene Thermal Maximum (PETM), ETM‐2 was characterized by massive carbon emissions and several degrees of global warming and thus can serve as a case study for assessing the impacts of rapid CO2...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.904063 2024-05-12T08:09:24+00:00 Stable isotope ratios, and trace elements from Pacific and S. Atlantic mid-latitudes across Eocene Thermal Maximum 2 and the Paleocene-Eocene Thermal Maximum Harper, Dustin T Hönisch, Bärbel Zeebe, Richard E Shaffer, Gary Haynes, Laura Thomas, Ellen Zachos, James C MEDIAN LATITUDE: 17.173009 * MEDIAN LONGITUDE: 119.477656 * SOUTH-BOUND LATITUDE: -28.835010 * WEST-BOUND LONGITUDE: 2.639330 * NORTH-BOUND LATITUDE: 32.651800 * EAST-BOUND LONGITUDE: 158.506080 * DATE/TIME START: 2001-09-18T08:00:00 * DATE/TIME END: 2003-04-11T10:45:00 2019 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.904063 https://doi.org/10.1594/PANGAEA.904063 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.904063 https://doi.org/10.1594/PANGAEA.904063 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Harper, Dustin T; Hönisch, Bärbel; Zeebe, Richard E; Shaffer, Gary; Haynes, Laura; Thomas, E; Zachos, James C (2020): The Magnitude of Surface Ocean Acidification and Carbon Release During Eocene Thermal Maximum 2 (ETM‐2) and the Paleocene‐Eocene Thermal Maximum (PETM). Paleoceanography and Paleoclimatology, 35(2), e2019PA003699, https://doi.org/10.1029/2019PA003699 Boron isotope carbon isotope ETM-2 Ocean Drilling Program ODP PETM Dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.90406310.1029/2019PA003699 2024-04-17T14:21:33Z Eocene Thermal Maximum 2 (ETM‐2; 54.1 Ma) was the second largest Eocene hyperthermal. Like the Paleocene‐Eocene Thermal Maximum (PETM), ETM‐2 was characterized by massive carbon emissions and several degrees of global warming and thus can serve as a case study for assessing the impacts of rapid CO2 emissions on ocean carbonate chemistry, biota, and climate. Marine carbonate records of ETM‐2 are better preserved than those of the PETM due to more subdued carbonate dissolution. As yet, however, the magnitude of this carbon cycle perturbation has not been well constrained. Here, we present the first records of surface ocean acidification for ETM‐2, based on stable boron isotope records in mixed‐layer planktic foraminifera from two midlatitude ODP sites (1210 in the North Pacific and 1265 in the SE Atlantic), which indicate conservative minimum global sea surface acidification of −0.20 +0.12/−0.13 pH units. Using these estimates of pH and temperature as constraints on carbon cycle model simulations, we conclude that the total mass of C, released over a period of 15 to 25 kyr during ETM‐2, likely ranged from 2,600 to 3,800 Gt C, which is greater than previously estimated on the basis of other observations (i.e., stable carbon isotopes and carbonate compensation depth) alone. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science Pacific ENVELOPE(2.639330,158.506080,32.651800,-28.835010) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Boron isotope carbon isotope ETM-2 Ocean Drilling Program ODP PETM |
spellingShingle |
Boron isotope carbon isotope ETM-2 Ocean Drilling Program ODP PETM Harper, Dustin T Hönisch, Bärbel Zeebe, Richard E Shaffer, Gary Haynes, Laura Thomas, Ellen Zachos, James C Stable isotope ratios, and trace elements from Pacific and S. Atlantic mid-latitudes across Eocene Thermal Maximum 2 and the Paleocene-Eocene Thermal Maximum |
topic_facet |
Boron isotope carbon isotope ETM-2 Ocean Drilling Program ODP PETM |
description |
Eocene Thermal Maximum 2 (ETM‐2; 54.1 Ma) was the second largest Eocene hyperthermal. Like the Paleocene‐Eocene Thermal Maximum (PETM), ETM‐2 was characterized by massive carbon emissions and several degrees of global warming and thus can serve as a case study for assessing the impacts of rapid CO2 emissions on ocean carbonate chemistry, biota, and climate. Marine carbonate records of ETM‐2 are better preserved than those of the PETM due to more subdued carbonate dissolution. As yet, however, the magnitude of this carbon cycle perturbation has not been well constrained. Here, we present the first records of surface ocean acidification for ETM‐2, based on stable boron isotope records in mixed‐layer planktic foraminifera from two midlatitude ODP sites (1210 in the North Pacific and 1265 in the SE Atlantic), which indicate conservative minimum global sea surface acidification of −0.20 +0.12/−0.13 pH units. Using these estimates of pH and temperature as constraints on carbon cycle model simulations, we conclude that the total mass of C, released over a period of 15 to 25 kyr during ETM‐2, likely ranged from 2,600 to 3,800 Gt C, which is greater than previously estimated on the basis of other observations (i.e., stable carbon isotopes and carbonate compensation depth) alone. |
format |
Dataset |
author |
Harper, Dustin T Hönisch, Bärbel Zeebe, Richard E Shaffer, Gary Haynes, Laura Thomas, Ellen Zachos, James C |
author_facet |
Harper, Dustin T Hönisch, Bärbel Zeebe, Richard E Shaffer, Gary Haynes, Laura Thomas, Ellen Zachos, James C |
author_sort |
Harper, Dustin T |
title |
Stable isotope ratios, and trace elements from Pacific and S. Atlantic mid-latitudes across Eocene Thermal Maximum 2 and the Paleocene-Eocene Thermal Maximum |
title_short |
Stable isotope ratios, and trace elements from Pacific and S. Atlantic mid-latitudes across Eocene Thermal Maximum 2 and the Paleocene-Eocene Thermal Maximum |
title_full |
Stable isotope ratios, and trace elements from Pacific and S. Atlantic mid-latitudes across Eocene Thermal Maximum 2 and the Paleocene-Eocene Thermal Maximum |
title_fullStr |
Stable isotope ratios, and trace elements from Pacific and S. Atlantic mid-latitudes across Eocene Thermal Maximum 2 and the Paleocene-Eocene Thermal Maximum |
title_full_unstemmed |
Stable isotope ratios, and trace elements from Pacific and S. Atlantic mid-latitudes across Eocene Thermal Maximum 2 and the Paleocene-Eocene Thermal Maximum |
title_sort |
stable isotope ratios, and trace elements from pacific and s. atlantic mid-latitudes across eocene thermal maximum 2 and the paleocene-eocene thermal maximum |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.904063 https://doi.org/10.1594/PANGAEA.904063 |
op_coverage |
MEDIAN LATITUDE: 17.173009 * MEDIAN LONGITUDE: 119.477656 * SOUTH-BOUND LATITUDE: -28.835010 * WEST-BOUND LONGITUDE: 2.639330 * NORTH-BOUND LATITUDE: 32.651800 * EAST-BOUND LONGITUDE: 158.506080 * DATE/TIME START: 2001-09-18T08:00:00 * DATE/TIME END: 2003-04-11T10:45:00 |
long_lat |
ENVELOPE(2.639330,158.506080,32.651800,-28.835010) |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Harper, Dustin T; Hönisch, Bärbel; Zeebe, Richard E; Shaffer, Gary; Haynes, Laura; Thomas, E; Zachos, James C (2020): The Magnitude of Surface Ocean Acidification and Carbon Release During Eocene Thermal Maximum 2 (ETM‐2) and the Paleocene‐Eocene Thermal Maximum (PETM). Paleoceanography and Paleoclimatology, 35(2), e2019PA003699, https://doi.org/10.1029/2019PA003699 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.904063 https://doi.org/10.1594/PANGAEA.904063 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.90406310.1029/2019PA003699 |
_version_ |
1798852634743930880 |