{"data":{"id":"10.1594/pangaea.713540","type":"dois","attributes":{"doi":"10.1594/pangaea.713540","prefix":"10.1594","suffix":"pangaea.713540","identifiers":[],"alternateIdentifiers":[],"creators":[{"name":"Bohaty, Steven M","givenName":"Steven M","familyName":"Bohaty","affiliation":[],"nameIdentifiers":[]},{"name":"Zachos, James C","givenName":"James C","familyName":"Zachos","nameIdentifiers":[{"schemeUri":"https://orcid.org","nameIdentifier":"https://orcid.org/0000-0001-8439-1886","nameIdentifierScheme":"ORCID"}],"affiliation":[]}],"titles":[{"title":"Carbon and oxygen isotopic compositions of Cibicidoides spp. and fine fraction separates (\u0026lt;10 µm) from ODP Holes 113-689B, 119-738B, and 120-748B"}],"publisher":"PANGAEA","container":{},"publicationYear":2003,"subjects":[{"subject":"Drilling/drill rig","subjectScheme":"Method"},{"subject":"Leg113","subjectScheme":"Campaign"},{"subject":"Leg119","subjectScheme":"Campaign"},{"subject":"Leg120","subjectScheme":"Campaign"},{"subject":"Joides Resolution","subjectScheme":"Basis"},{"subject":"Ocean Drilling Program (ODP)","subjectScheme":"Project"}],"contributors":[],"dates":[{"date":"2003","dateType":"Issued"}],"language":"en","types":{"ris":"GEN","bibtex":"misc","citeproc":"article","schemaOrg":"Collection","resourceType":"Supplementary Publication Series of Datasets","resourceTypeGeneral":"Collection"},"relatedIdentifiers":[{"relationType":"IsSupplementTo","relatedIdentifier":"10.1130/g19800.1","relatedIdentifierType":"DOI"}],"relatedItems":[],"sizes":["5 datasets"],"formats":["application/zip"],"version":null,"rightsList":[{"rights":"Creative Commons Attribution 3.0 Unported","rightsUri":"https://creativecommons.org/licenses/by/3.0/legalcode","schemeUri":"https://spdx.org/licenses/","rightsIdentifier":"cc-by-3.0","rightsIdentifierScheme":"SPDX"}],"descriptions":[{"description":"A prominent middle Eocene warming event is identified in Southern Ocean deep-sea cores, indicating that long-term cooling through the middle and late Eocene was not monotonic. At sites on Maud Rise and the Kerguelen Plateau, a distinct negative shift in d18O values (~1.0 per mil) is observed ca. 41.5 Ma. This excursion is interpreted as primarily a temperature signal, with a transient warming of 4°C over 600 k.y. affecting both surface and middle-bathyal deep waters in the Indian-Atlantic region of the Southern Ocean. This isotopic event is designated as the middle Eocene climatic optimum, and is interpreted to represent a significant climatic reversal in the midst of middle to late Eocene deep-sea cooling. The lack of a significant negative carbon isotope excursion, as observed during the Paleocene-Eocene thermal maximum, and the gradual rate of high-latitude warming suggest that this event was not triggered by methane hydrate dissociation. Rather, a transient rise in pCO2 levels is suspected, possibly as a result of metamorphic decarbonation in the Himalayan orogen or increased ridge/arc volcanism during the late middle Eocene.","descriptionType":"Abstract"},{"description":"Supplement to: Bohaty, Steven M; Zachos, James C (2003): Significant Southern Ocean warming event in the late middle Eocene. Geology, 31(11), 1017-1020","descriptionType":"Other"}],"geoLocations":[{"geoLocationBox":{"eastBoundLongitude":"82.7878","northBoundLatitude":"-58.441","southBoundLatitude":"-64.517","westBoundLongitude":"3.0999"}},{"geoLocationPlace":"South Atlantic Ocean"},{"geoLocationPlace":"Indian Ocean"},{"geoLocationPlace":"South Indian Ridge, South Indian 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