Rare earth elements in foraminifera tests

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doi: 10.1016/0012-821X(85)90077-9
Authors:Palmer, M. R.
Author Affiliations:Primary:
Univ. Leeds, Dep. Earth Sci., Leeds, United Kingdom
Volume Title:Earth and Planetary Science Letters
Source:Earth and Planetary Science Letters, 73(2-4), p.285-298. Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0012-821X
Publication Date:1985
Note:In English. 55 refs.; illus. incl. 8 tables
Summary:The concentrations of nine REE (La, Ce, Nd, Sm, Eu, Gd, Dy, Er and Yb) were determined in mixed species assemblages of foraminifera tests taken from Atlantic Ocean sediment core tops. Reductive cleaning techniques revealed that REE are present in three phases: 1) REE included in the foraminiferal calcite matrix (termed lattice REE); 2) REE associated with an authigenic Fe,Mn-rich phase adsorbed onto the surface of the test following the death of the organism (coating REE) and 3) REE associated with alumino-silicate detritus (detrital REE) which commonly infills the test chambers after burial in the sediment. About 90% of the non-detrital REE resides in the coating phase, the remainder being present in the lattice phase. These data were used to investigate the relative distribution of dissolved REE in the ocean and in the coating and lattice phases. Concentrations of Mn, Fe, Cu, Al and PO4 were also measured. [P.Br.]
Subjects:Aluminum; Biochemistry; Cerium; Copper; Dysprosium; Erbium; Europium; Foraminifera; Gadolinium; Geochemistry; Iron; Lanthanum; Lattice; Manganese; Metals; Microfossils; Neodymium; Ocean floors; Rare earths; Samarium; Sedimentation; Sediments; Tests; Trace elements; Ytterbium; Atlantic Ocean; Invertebrata; Nondetrital phase; Protista
Abstract Numbers:86M/0683
Record ID:1985072075
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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