{"data":{"id":"10.1594/pangaea.712626","type":"dois","attributes":{"doi":"10.1594/pangaea.712626","prefix":"10.1594","suffix":"pangaea.712626","identifiers":[],"alternateIdentifiers":[],"creators":[{"name":"Wei, Wuchang","givenName":"Wuchang","familyName":"Wei","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Census of calcareous nannofossil taxa expressed as percent of total number of individuals counted, ODP Legs 113, 114, 119, 120"}],"publisher":"PANGAEA","container":{},"publicationYear":1991,"subjects":[{"subject":"Composite Core","subjectScheme":"Method"},{"subject":"Leg113","subjectScheme":"Campaign"},{"subject":"Leg114","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":"1991","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":"10.1130/0091-7613(1991)019\u003c0780:efaeoa\u003e2.3.co;2","relatedIdentifierType":"DOI"},{"relationType":"IsDocumentedBy","relatedIdentifier":"ftp://rock.geosociety.org/pub/reposit/1991/9122.pdf","relatedIdentifierType":"URL"}],"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":"Quantitative analysis of upper Eocene-upper Oligocene calcareous nannofossil assemblages from five Ocean Drilling Program sites in the Atlantic and Indian Ocean sectors of the Southern Ocean reveals an abrupt increase in cool-water taxa at the top of magnetic Subchron C13R ca. 35.9 Ma, coincident with an enrichment of ~1‰ d18O in the planktonic foraminifers at these sites. The synchrony of the abrupt increase in cool-water taxa in the Southern Ocean renders this event a useful biostratigraphic datum at southern high latitudes. This earliest Oligocene cool-water taxa increase was the sharpest and largest during the late Eocene-late Oligocene interval and indicates a drop in surface-water temperature of more than 3°C in the Southern Ocean. This suggests that the earliest Oligocene d18O shift represents primarily a temperature signal; a small portion (~0.2‰) is attributable to a global ice-volume increase.","descriptionType":"Abstract"},{"description":"Supplement to: Wei, Wuchang (1991): Evidence for an earliest Oligocene abrupt cooling in the surface waters of the Southern Ocean. Geology, 19(8), 780-783","descriptionType":"Other"}],"geoLocations":[{"geoLocationBox":{"eastBoundLongitude":"80.595","northBoundLatitude":"-47.051","southBoundLatitude":"-64.517","westBoundLongitude":"-30.677"}},{"geoLocationPlace":"South Atlantic Ocean"},{"geoLocationPlace":"Indian Ocean"},{"geoLocationPlace":"South Indian Ridge, South Indian 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