{"data":{"id":"10.1594/pangaea.667373","type":"dois","attributes":{"doi":"10.1594/pangaea.667373","prefix":"10.1594","suffix":"pangaea.667373","identifiers":[],"alternateIdentifiers":[],"creators":[{"name":"Staudigel, Hubert","givenName":"Hubert","familyName":"Staudigel","affiliation":[],"nameIdentifiers":[]},{"name":"Muehlenbachs, Karlis","givenName":"Karlis","familyName":"Muehlenbachs","affiliation":[],"nameIdentifiers":[]},{"name":"Richardson, Stephen H","givenName":"Stephen H","familyName":"Richardson","affiliation":[],"nameIdentifiers":[]},{"name":"Hart, Stanley R","givenName":"Stanley R","familyName":"Hart","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Isotope ratios of smectites, calcites and whole rocks from DSDP Legs 51 and 52, Atlantic Ocean"}],"publisher":"PANGAEA","container":{},"publicationYear":1981,"subjects":[{"subject":"Composite Core","subjectScheme":"Method"},{"subject":"Drilling/drill rig","subjectScheme":"Method"},{"subject":"Leg51","subjectScheme":"Campaign"},{"subject":"Leg52","subjectScheme":"Campaign"},{"subject":"Leg53","subjectScheme":"Campaign"},{"subject":"Glomar Challenger","subjectScheme":"Basis"},{"subject":"Deep Sea Drilling Project (DSDP)","subjectScheme":"Project"}],"contributors":[],"dates":[{"date":"1981","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":"10.1007/bf00636518","relatedIdentifierType":"DOI"}],"relatedItems":[],"sizes":["10 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":"Delta180 and 87Sr/86Sr isotopic data from smectites, calcites, and whole rocks, together with published isotopic age determinations, alkali element concentration data and petrographic observations suggest a sequential model of ocean floor alteration. The early stage lasts about 3 m.y. and is characterized by palagonite and smectite formation, and solutions with a large basaltic component, increasing with temperature which varies from 15° to 80° C at DSDP site 418A. Most carbonates are deposited after this stage from solutions with a negligible basaltic Sr component and temperatures of 15° to 40° C. Water of seawater Sr and O isotopic composition is shown to percolate to at least 500 m into the basaltic basement. No evidence was found for continuing exchange of strontium or oxygen after 3 m.y.","descriptionType":"Abstract"},{"description":"Supplement to: Staudigel, Hubert; Muehlenbachs, Karlis; Richardson, Stephen H; Hart, Stanley R (1981): Agents of low temperature ocean crust alteration. Contributions to Mineralogy and Petrology, 77(2), 150-157","descriptionType":"Other"}],"geoLocations":[{"geoLocationBox":{"eastBoundLongitude":"-68.0413","northBoundLatitude":"25.1115","southBoundLatitude":"25.035","westBoundLongitude":"-68.0573"}},{"geoLocationPlace":"North Atlantic/CONT 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