{"data":{"id":"10.1594/pangaea.510768","type":"dois","attributes":{"doi":"10.1594/pangaea.510768","prefix":"10.1594","suffix":"pangaea.510768","identifiers":[],"alternateIdentifiers":[],"creators":[{"name":"Lavelle, Mark","givenName":"Mark","familyName":"Lavelle","affiliation":[],"nameIdentifiers":[]},{"name":"Fielding, Christopher R","givenName":"Christopher R","familyName":"Fielding","affiliation":[],"nameIdentifiers":[]},{"name":"Hall, Michael A","givenName":"Michael A","familyName":"Hall","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Stable isotope ratios measured on molluscan from the CRP sediment cores in the Ross Sea, Antarctica"}],"publisher":"PANGAEA","container":{},"publicationYear":2001,"subjects":[{"subject":"Core wireline system","subjectScheme":"Method"},{"subject":"CRP-2__Campaign","subjectScheme":"Campaign"},{"subject":"CRP-3__Campaign","subjectScheme":"Campaign"},{"subject":"Sampling/drilling from ice","subjectScheme":"Basis"},{"subject":"Cape Roberts Project (CRP)","subjectScheme":"Project"}],"contributors":[],"dates":[{"date":"2001","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":"10013/epic.28228.d001","relatedIdentifierType":"Handle"}],"relatedItems":[],"sizes":["2 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":"Stable isotope analyses of marine bivalve growth increment samples have been used to estimate early Oligocene (29.4 - 31.2) Ma and early Miocene (24.0 Ma) seafloor palaeotemperature from the southwestern continental margin of the Ross Sea. Measured d18O values average +2.5 ‰ in the early Miocene and range between +1.26 to +3.24 ‰ in the early Oligocene. The results show that palaeoceanographic conditions in McMurdo Sound during the mid-Cenozoic were significantly different from those of today. The minimum estimated spring through late summer seasonal temperature range was 3°C during the early Miocene and between 1 and 5°C during the early Oligocene. This compares to the equivalent modern day range of \u0026lt;0.5°C within the sound. Absolute seawater temperatures at \u0026lt;100 m depth were of the order of 5 to 7°C during both time slices, compared to modern day values of -1.4 to - 1.9°C in the same area. The results are in broad agreement with early Oligocene Mg/Ca temperature estimates from deep Atlantic foraminifera as well as estimates from local terrestrial palynology and palaeobotany.","descriptionType":"Abstract"},{"description":"Supplement to: Lavelle, Mark; Fielding, Christopher R; Hall, Michael A (2001): Molluscan stable isotope temperature estimates of the southwestern Ross Sea during the early Oligocene and early Miocene, CRP-2/2A and CRP-3, Victoria Land Basin, Antarctica. Terra Antartica, 8(4), 439-444","descriptionType":"Other"}],"geoLocations":[{"geoLocationBox":{"eastBoundLongitude":163.71945,"northBoundLatitude":-77.0059833333333,"southBoundLatitude":-77.006,"westBoundLongitude":163.719}},{"geoLocationPlace":"off Cape Roberts, Ross Sea, Antarctica"},{"geoLocationPlace":"Ross 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