{"data":{"id":"10.1594/pangaea.714969","type":"dois","attributes":{"doi":"10.1594/pangaea.714969","prefix":"10.1594","suffix":"pangaea.714969","identifiers":[],"alternateIdentifiers":[],"creators":[{"name":"MacDougall, J Douglas","givenName":"J Douglas","familyName":"MacDougall","affiliation":[],"nameIdentifiers":[]},{"name":"Finkel, R C","givenName":"R C","familyName":"Finkel","affiliation":[],"nameIdentifiers":[]},{"name":"Carlson, J","givenName":"J","familyName":"Carlson","affiliation":[],"nameIdentifiers":[]},{"name":"Krishnaswami, Seth","givenName":"Seth","familyName":"Krishnaswami","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Uranium chemistry of oceanic basalts"}],"publisher":"PANGAEA","container":{},"publicationYear":1979,"subjects":[{"subject":"Drilling/drill rig","subjectScheme":"Method"},{"subject":"Leg22","subjectScheme":"Campaign"},{"subject":"Leg24","subjectScheme":"Campaign"},{"subject":"Glomar Challenger","subjectScheme":"Basis"},{"subject":"Deep Sea Drilling Project (DSDP)","subjectScheme":"Project"}],"contributors":[],"dates":[{"date":"1979","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":"10.1016/0012-821x(79)90187-0","relatedIdentifierType":"DOI"}],"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":"Measurements of uranium concentration and the 234U/238 U activity ratio in oceanic basalts which have undergone low-temperature seafloor alteration indicate that uranium uptake is a pervasive occurrence but that the various phases involved behave differently with respect to this process. Palagonite exhibits uranium contents 8-20 times higher than unaltered glass coupled with low 234U/238U, suggesting ongoing preferential leaching of 234U. Altered crystalline interiors of several old basalts have 234U/238U \u0026gt; 1, indicative of recent uranium exchange with seawater. The data also provide evidence for uranium sources with 234U/238U higher than the seawater value of 1.14. Manganese crusts on basalts of a variety of ages have isotopic ratios indicating that they either are recent deposits or also have experienced continuing uranium exchange with seawater.","descriptionType":"Abstract"},{"description":"Supplement to: MacDougall, J Douglas; Finkel, R C; Carlson, J; Krishnaswami, Seth (1979): Isotopic evidence for uranium exchange during low-temperature alteration of oceanic basalt. Earth and Planetary Science Letters, 42(1), 27-34","descriptionType":"Other"}],"geoLocations":[{"geoLocationBox":{"eastBoundLongitude":"-105.19999999999999","northBoundLatitude":"9.2167","southBoundLatitude":"-24.1433","westBoundLongitude":"70.235"}},{"geoLocationPlace":"Indian Ocean//BASIN"},{"geoLocationPlace":"Indian Ocean//FRACTURE 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