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Rare earth element geochemistry of oceanic ferromanganese nodules and associated sediments
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In this paper, the authors made an analysis of the rare earth contents of a suite of deep-sea (> 4000 m) seafloor nodules and associated sediments from the Pacific Ocean and found that 3 + REE concentrations are controlled by the surface chemistry of these phases during diagenetic reactions which vary with sediment accumulation rate.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1981-04-01. It has received 456 citations till now. The article focuses on the topics: Ferromanganese nodules & Cerium anomaly.read more
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A Sm-Nd isotopic study of atmospheric dusts and particulates from major river systems
TL;DR: In this paper, the average ratio of Sm/Nd is about 0.19 in the upper continental crust, and has remained so since the early Archean, thereby precluding the likelihood of major mafic-to-felsic or felsicto-mafic trends in the overall composition of the sedimentary mass through earth history.
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The rare earth elements in seawater
Henry Elderfield,Mervyn Greaves +1 more
TL;DR: In this article, the depth distributions of La, Ce, Nd, Sm, Eu, Gd, Dy, Er and Yb in the oceanic water column are used to evaluate the marine geochemical cycle of the rare earth elements and their application as water-mass tracers.
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Element transport from slab to volcanic front at the Mariana arc
TL;DR: Agarwal et al. as mentioned in this paper presented a comprehensive geochemical data set for the most recent volcanics from the Mariana Islands, which provides new constraints on the timing and nature of fluxes from the subducting slab.
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Element transport from slab to volcanic front at the Mariana Arc
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The geochemistry of marine sediments, island arc magma genesis, and crust-mantle recycling
TL;DR: In this article, the role of sediment subduction and recycling in island arc magma genesis and mantle evolution has been assessed using 36 modern marine sediments, including Mn nodules, biogenic oozes, and pelagic and hemipelagic clays from the Pacific, Atlantic and Indian Oceans.
References
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1972 values for international geochemical reference samples
TL;DR: In this article, the best values for constituents determined in a rock analysis and for trace elements are collected for samples prepared by the Centre de Recherches Petrographiqueset Geochimiques, France, the Canadian Standard Reference Materials Project (formerly SSC), the Geological Survey of Japan, the National Institute for Metallurgy, South Africa, the U.S. Geological Survey and the Zentrales Geologisches Institut, D.D.R.
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Variations in143Nd/144Nd and87Sr/86Sr ratios in oceanic basalts
TL;DR: In this article, a strong negative correlation exists between 87Sr/86Sr ratios in oceanic basalt from Iceland and the Reykjanes Ridge, but such a clear correlation does not exist for samples from the Hawaiian Islands.
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Rare earth elements in the sedimentary cycle: A summary
TL;DR: The relative and absolute concentrations of rare earth elements (REE) in authigenic and biogenic phases of deep-sea sediments are quite different as mentioned in this paper, and the distribution of REE in different masses of seawater strongly reflects their fractionation in sediments.
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Marine Geochemistry 1. Chemical Scavengers of the Sea
TL;DR: In this article, the ability of hydrated oxides of manganese and iron to adsorb ions from solution (scavenging) is considered in relation to some problems in marine geology, chemistry, and biology.
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Rare-Earth distributions in the marine environment
TL;DR: In this article, the rare-earth elements in sea water, in a phosphorite, and in a manganese nodule were made by neutron activation and x-ray fluorescence techniques.