{"data":{"id":"10.1594/pangaea.667438","type":"dois","attributes":{"doi":"10.1594/pangaea.667438","prefix":"10.1594","suffix":"pangaea.667438","identifiers":[],"alternateIdentifiers":[],"creators":[{"name":"Staudigel, Hubert","givenName":"Hubert","familyName":"Staudigel","affiliation":[],"nameIdentifiers":[]},{"name":"Frey, Frederick A","givenName":"Frederick A","familyName":"Frey","nameIdentifiers":[{"schemeUri":"https://orcid.org","nameIdentifier":"https://orcid.org/0000-0002-5403-5677","nameIdentifierScheme":"ORCID"}],"affiliation":[]},{"name":"Hart, Stanley R","givenName":"Stanley R","familyName":"Hart","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Chemical composition and isotope ratios of basalts from DSDP Sites 417 and 418, West Atlantic Ocean"}],"publisher":"PANGAEA","container":{},"publicationYear":1979,"subjects":[{"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":"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":"10.2973/dsdp.proc.515253.138.1980","relatedIdentifierType":"DOI"}],"relatedItems":[],"sizes":["12 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":"Basalts from Sites 417 and 418 are relatively depleted in light REE compared to a chondritic REE distribution. In the least altered samples, K, Rb, Cs, and Sr and Ba concentrations are lower than in average mid-ocean ridge basalt (MORB). Thus, the source rock for these basalts must have been highly depleted in incompatible elements. However, 87/86Sr ratios in these basalts, even in microscopically fresh glass, are high (\u0026gt; 0.7030). These ratios, compared to normal MORB, are largely an effect of low-temperature alteration. Sr isotope exchange with sea water is postulated for basaltic glass (87/86Sr = 0.70301) with low incompatible-element abundances, but we cannot eliminate the possibility that these relatively high 87/86Sr ratios are primary. By studying closely associated glass-palagonite-crystalline rock samples, we can identify two types of alteration processes: (1) palagonite formation which causes loss of REE elements, without changing their distribution, and decreasing K/Rb and K/Cs with increasing K content; and (2) glass-sea water exchange which is apparently a diffusioncontrolled process, causing increasing K/Rb and K/Cs with increasing K content but not affecting REE.","descriptionType":"Abstract"},{"description":"Supplement to: Staudigel, Hubert; Frey, Frederick A; Hart, Stanley R (1979): Incompatible trace-element geochemistry and 87/86Sr in basalts and corresponding glasses and palagonites. In: Donnelly, T, Francheteau, J., Bryan, W., Robinson, P., Flower, M., Salisbury, M., et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Government Print Office), 51,52,53, 1137-1144","descriptionType":"Other"}],"geoLocations":[{"geoLocationBox":{"eastBoundLongitude":"-68.0468","northBoundLatitude":"25.1115","southBoundLatitude":"25.035","westBoundLongitude":"-68.0573"}},{"geoLocationPlace":"North Atlantic/CONT 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