Mg/Ca and oxygen isotope data from the Indo-Pacific ...

Across the middle Miocene, Earth's climate underwent a major cooling and expansion of the Antarctic ice sheet. However, the associated response and development of the tropical climate system is not fully understood, in part because this is influenced by both global climate and also low latitude...

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Main Authors: Sosdian, Sindia M, Lear, Caroline H
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2021
Subjects:
Online Access:https://dx.doi.org/10.1594/pangaea.928247
https://doi.pangaea.de/10.1594/PANGAEA.928247
id ftdatacite:10.1594/pangaea.928247
record_format openpolar
spelling ftdatacite:10.1594/pangaea.928247 2024-09-15T17:47:17+00:00 Mg/Ca and oxygen isotope data from the Indo-Pacific ... Sosdian, Sindia M Lear, Caroline H 2021 application/zip https://dx.doi.org/10.1594/pangaea.928247 https://doi.pangaea.de/10.1594/PANGAEA.928247 en eng PANGAEA https://dx.doi.org/10.1029/2020pa003920 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Glaciation Indo-Pacific Mg/Ca Miocene planktic foraminifera tropics Ocean Drilling Program ODP article Collection Bundled Publication of Datasets 2021 ftdatacite https://doi.org/10.1594/pangaea.92824710.1029/2020pa003920 2024-08-01T10:54:44Z Across the middle Miocene, Earth's climate underwent a major cooling and expansion of the Antarctic ice sheet. However, the associated response and development of the tropical climate system is not fully understood, in part because this is influenced by both global climate and also low latitude tectonic gateways and paleoceanography. Here we use combined δ18O and Mg/Ca of planktic foraminifera to reconstruct the thermal history and changes in hydrology from the Indo-Pacific region from 16.5 to 11.5 Ma. During the warmth of the early middle Miocene, our records indicate a dynamic ocean-atmosphere system in the Indo-Pacific region, with episodes of saltier and warmer tropical surface waters associated with high pCO2 and retreat of the Antarctic ice sheet. We show that across the middle Miocene Climate Transition (MMCT) surface ocean temperatures in the Indo-Pacific cooled by ~ 2˚C, synchronous with the advance of the Antarctic ice sheet. The associated cooling in the Southern Ocean appears to have started ... Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Southern Ocean DataCite
institution Open Polar
collection DataCite
op_collection_id ftdatacite
language English
topic Glaciation
Indo-Pacific
Mg/Ca
Miocene
planktic foraminifera
tropics
Ocean Drilling Program ODP
spellingShingle Glaciation
Indo-Pacific
Mg/Ca
Miocene
planktic foraminifera
tropics
Ocean Drilling Program ODP
Sosdian, Sindia M
Lear, Caroline H
Mg/Ca and oxygen isotope data from the Indo-Pacific ...
topic_facet Glaciation
Indo-Pacific
Mg/Ca
Miocene
planktic foraminifera
tropics
Ocean Drilling Program ODP
description Across the middle Miocene, Earth's climate underwent a major cooling and expansion of the Antarctic ice sheet. However, the associated response and development of the tropical climate system is not fully understood, in part because this is influenced by both global climate and also low latitude tectonic gateways and paleoceanography. Here we use combined δ18O and Mg/Ca of planktic foraminifera to reconstruct the thermal history and changes in hydrology from the Indo-Pacific region from 16.5 to 11.5 Ma. During the warmth of the early middle Miocene, our records indicate a dynamic ocean-atmosphere system in the Indo-Pacific region, with episodes of saltier and warmer tropical surface waters associated with high pCO2 and retreat of the Antarctic ice sheet. We show that across the middle Miocene Climate Transition (MMCT) surface ocean temperatures in the Indo-Pacific cooled by ~ 2˚C, synchronous with the advance of the Antarctic ice sheet. The associated cooling in the Southern Ocean appears to have started ...
format Article in Journal/Newspaper
author Sosdian, Sindia M
Lear, Caroline H
author_facet Sosdian, Sindia M
Lear, Caroline H
author_sort Sosdian, Sindia M
title Mg/Ca and oxygen isotope data from the Indo-Pacific ...
title_short Mg/Ca and oxygen isotope data from the Indo-Pacific ...
title_full Mg/Ca and oxygen isotope data from the Indo-Pacific ...
title_fullStr Mg/Ca and oxygen isotope data from the Indo-Pacific ...
title_full_unstemmed Mg/Ca and oxygen isotope data from the Indo-Pacific ...
title_sort mg/ca and oxygen isotope data from the indo-pacific ...
publisher PANGAEA
publishDate 2021
url https://dx.doi.org/10.1594/pangaea.928247
https://doi.pangaea.de/10.1594/PANGAEA.928247
genre Antarc*
Antarctic
Ice Sheet
Southern Ocean
genre_facet Antarc*
Antarctic
Ice Sheet
Southern Ocean
op_relation https://dx.doi.org/10.1029/2020pa003920
op_rights Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
cc-by-4.0
op_doi https://doi.org/10.1594/pangaea.92824710.1029/2020pa003920
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