(Table 1, pages 646) Uranium, thorium and protactinium analyses of selected manganese nodules from the Atlantic and Pacific oceans, supplement to: Sackett, William M (1966): Manganese Nodules: Thorium-230: Protactinium-231 Ratios. Science, 154(3749), 646-647


The Th230/Pa231 activity ratio in 7 of 11 manganese nodules is less than 10.8, the theoretical production ratio of activities in the ocean. This finding indicates difierential accumulation of these nuclides in authigenic deposits of manganese-iron oxide.

The analytical procedures for carrier-free separation of uranium, thorium, and protactinium from manganese nodules make use of 232U, 234Th, and 233Pa tracers to monitor yield. Extraction of proactinium uses diisobutyl carbinol extraction and that of uranium and thorium is perforemed using cation exchange techniques.

DOI https://doi.org/10.1594/PANGAEA.871886
Related Identifier https://doi.org/10.1126/science.154.3749.646
Related Identifier https://doi.org/10.7289/V52Z13FT
Related Identifier https://doi.org/10.7289/V53X84KN
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.871886
Creator Sackett, William M
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 1966
Rights Creative Commons Attribution 3.0 Unported
OpenAccess true
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Size 124 data points
Discipline Earth System Research
Spatial Coverage (-171.000W, -41.983S, -56.150E, 40.300N); Atlantic Ocean; Pacific Ocean; Blake Plateau, Atlantic Ocean
Temporal Coverage Begin 1950-09-02T00:00:00Z
Temporal Coverage End 1965-08-20T00:00:00Z