Re-organization of Pacific overturning circulation across the Miocene Climate Optimum
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| Autores principales: | , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2024
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| _version_ | 1867167682990702592 |
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| author | Holbourn, Ann E Kuhnt, Wolfgang Kulhanek, Denise K |
| author_facet | Holbourn, Ann E Kuhnt, Wolfgang Kulhanek, Denise K |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | We reconstruct the evolution of deep-water chemistry across the Miocene Climate Optimum (16.9 to 14.7 Ma) and Middle Miocene Climate Transition (14.7-13.8 Ma), using high-resolution benthic foraminiferal stable isotopes, X-ray fluorescence (XRF) scanner-derived elemental records, light reflectance spectroscopy data as well as coarse fraction >63 µm residue and calcium carbonate (CaCO3) weight percentage records from western equatorial Pacific Site U1490. We integrate our results with published records from key locations in the Pacific, Indian and Southern Oceans to investigate ocean-wide circulation changes and to better understand the processes driving short- and long-term variations in deep water production and ocean overturning on a warmer-than-modern Earth. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_971967 |
| institution | PANGAEA |
| language | en |
| publishDate | 2024 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Re-organization of Pacific overturning circulation across the Miocene Climate Optimum Holbourn, Ann E Kuhnt, Wolfgang Kulhanek, Denise K Benthic foraminiferal stable isotopes; Carbonate Content; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Middle Miocene Climate Transition; Miocene Climate Optimum; Ocean Drilling Program; ODP; Pacific overturning circulation; XRF core scanner data We reconstruct the evolution of deep-water chemistry across the Miocene Climate Optimum (16.9 to 14.7 Ma) and Middle Miocene Climate Transition (14.7-13.8 Ma), using high-resolution benthic foraminiferal stable isotopes, X-ray fluorescence (XRF) scanner-derived elemental records, light reflectance spectroscopy data as well as coarse fraction >63 µm residue and calcium carbonate (CaCO3) weight percentage records from western equatorial Pacific Site U1490. We integrate our results with published records from key locations in the Pacific, Indian and Southern Oceans to investigate ocean-wide circulation changes and to better understand the processes driving short- and long-term variations in deep water production and ocean overturning on a warmer-than-modern Earth. |
| title | Re-organization of Pacific overturning circulation across the Miocene Climate Optimum |
| topic | Benthic foraminiferal stable isotopes; Carbonate Content; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Middle Miocene Climate Transition; Miocene Climate Optimum; Ocean Drilling Program; ODP; Pacific overturning circulation; XRF core scanner data |
| url | https://doi.org/10.1594/PANGAEA.971967 |