Rare earth element zonation in Pacific ferromanganese nodules

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doi: 10.1016/0016-7037(81)90146-0
Authors:Elderfield, H.; Hawkesworth, C. J.; Greaves, M. J.; Calvert, S. E.
Author Affiliations:Primary:
Univ. B.C., Dep. Oceanogr., Vancouver, BC V6T 1WS, Canada
Volume Title:Geochimica et Cosmochimica Acta
Source:Geochimica et Cosmochimica Acta, 45(7), p.1231-1234. Publisher: Pergamon, Oxford, International. ISSN: 0016-7037
Publication Date:1981
Note:In English. 11 refs.; illus. incl. 1 table
Summary:The lower surfaces of ferromanganese nodules from the N equatorial Pacific Ocean, which are enriched in Mn, Cu and Ni, and the upper surfaces, which are enriched in Fe, P and Co, have been analysed for La, Ce, Nd, Sm, Eu, Gd, Dy, Er and Yb. The RE contents are lower and the Ce anomaly is smaller in the lower surfaces than in the upper surfaces. The magnitude of the Ce anomaly increases with decreasing Mn/Fe ratio, indicative of a sea-water origin. The zonal distribution of the other RE supports the conclusion derived previously from inter-nodule and nodule/sediment relationships: that diagenetic fixation of RE in sediments affects their enrichment by nodular iron oxyhydroxides. (Authors' abstract) [M.B.H.]
Subjects:Composition; Ferromanganese composition; Geochemistry; Major elements; Metals; Minor elements; Nodules; Oceanography; Rare earths; Zoning; Equatorial Pacific; Pacific Ocean
Abstract Numbers:82M/2962
Record ID:1982056917
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique
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