{"data":{"id":"10.1594/pangaea.711683","type":"dois","attributes":{"doi":"10.1594/pangaea.711683","prefix":"10.1594","suffix":"pangaea.711683","identifiers":[],"alternateIdentifiers":[],"creators":[{"name":"Salisbury, Matthew H","givenName":"Matthew H","familyName":"Salisbury","affiliation":[],"nameIdentifiers":[]},{"name":"Christensen, Nikolas I","givenName":"Nikolas I","familyName":"Christensen","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Basalt density, basement age, and intrusive/extrusive relations from DSDP Legs 2 through 7, 9, and 14"}],"publisher":"PANGAEA","container":{},"publicationYear":1973,"subjects":[{"subject":"Drilling/drill rig","subjectScheme":"Method"},{"subject":"Leg2","subjectScheme":"Campaign"},{"subject":"Leg3","subjectScheme":"Campaign"},{"subject":"Leg4","subjectScheme":"Campaign"},{"subject":"Leg5","subjectScheme":"Campaign"},{"subject":"Leg6","subjectScheme":"Campaign"},{"subject":"Leg7","subjectScheme":"Campaign"},{"subject":"Leg9","subjectScheme":"Campaign"},{"subject":"Leg14","subjectScheme":"Campaign"},{"subject":"Glomar Challenger","subjectScheme":"Basis"},{"subject":"Deep Sea Drilling Project (DSDP)","subjectScheme":"Project"}],"contributors":[],"dates":[{"date":"1973","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(1973)1\u003c63:pwosbw\u003e2.0.co;2","relatedIdentifierType":"DOI"}],"relatedItems":[],"sizes":["22 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":"Densities of layer 2 basalt recovered during the Deep Sea Drilling Project have been found to decrease steadily with age, a finding ascribed to progressive submarine weathering in the context of sea-floor spreading. The least-squares solution for 52 density measurements gives a rate of decrease in density of (Delta p)/(Delta t) = -0.0046 g per ccm m.y. = -16 percent per 100 m.y., which is in excellent agreement with earlier estimates based on observed chemical depletion rates of dredged oceanic basalt. Weathering of sea-floor basalt, should it penetrate to any considerable depth in layer 2, will decrease layer 2 seismic refraction velocities, act as a source of geothermal heat, and substantially influence the chemistry of sea water and the overlying column of sediment.","descriptionType":"Abstract"},{"description":"Supplement to: Salisbury, Matthew H; Christensen, Nikolas I (1973): Progressive weathering of submarine basalt with age: further evidence of sea-floor spreading. 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