Nd–Sr isotope and REY geochemistry of metalliferous sediments in a low-temperature off-axis hydrothermal environment (Costa Rica margin)

Steinmann, Marc; Bodeï, Sabine; Buatier, Martine

doi:10.1016/j.margeo.2012.04.005

Cited by 5 publications

(3 citation statements)

References 69 publications

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“…8), most closely resembles the 50GCC spectrum from hydrothermal Mn deposits in hemipelagic sediments off Costa Rica (Fig. 10e) (Bodei et al , 2008Steinmann et al 2012). High-resolution transmission electron microscopy (HRTEM) coupled with microanalysis showed that 50GCC is a mixture of 10Å-vernadite and todorokite with Ni partitioned almost evenly between the two phases (Bodeï et al 2007).…”

Section: Crystal Chemistry Of Trace Metalssupporting

confidence: 56%

“…The sample has no corner-sharing Co-(Co,Mn) peak, meaning that all Co and Mn atoms are in the manganese layer. (e,f) Ni K-edge EXAFS spectra and Fourier transform magnitudes of the diagenetic nodule from the Central Pacific studied here (NiD465D), and from a hydrothermal metalliferous Fe-Mn deposit collected west of Nicoya Peninsula off Costa Rica (Ni50GCC) (Bodei et al , 2008Steinmann et al 2012). The crystal chemistry of Ni is nearly identical in the two deep-ocean Fe-Mn deposits.…”

Section: Figurementioning

confidence: 93%

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Mineralogy and crystal chemistry of Mn, Fe, Co, Ni, and Cu in a deep-sea Pacific polymetallic nodule

Manceau

Lanson

Takahashi

2014

American Mineralogist

117

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Minor-element concentrations in marine ferromanganese nodules are primarily controlled by the mineralogy, which itself depends on redox conditions at the sediment-water interface. Results are presented for the first in-depth X-ray microstructural and microspectroscopic investigation of a mixed hydrogenetic-diagenetic nodule, which is representative of ferromanganese deposits on abyssal plains.(Cu+Ni+Co)/Mn = 0.13 which is slightly lower than 0.167 (1/6), the maximum metal uptake capacity reported for marine nodules. By analogy with synthetic todorokites we infer that Mg 2+ , which has a hydrated diameter close to that of the [3 x 3] tunnel, and Mn 3+ and Cu 2+ , which prefer Jahn-Teller distorted octahedra, play a crucial role in templating the topotactic transformation of 10Å-vernadite to todorokite and stabilizing todorokite in suboxic marine sediments.

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Section: Crystal Chemistry Of Trace Metalssupporting

confidence: 56%

Section: Figurementioning

confidence: 93%

Mineralogy and crystal chemistry of Mn, Fe, Co, Ni, and Cu in a deep-sea Pacific polymetallic nodule

Manceau

Lanson

Takahashi

2014

American Mineralogist

117

View full text Add to dashboard Cite

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“…To eliminate this influence, the bulk samples were leached using 1 M HCl as described by Innocent et al (1999) and Steinmann et al (2012) for deep-sea sediments. The residues were rinsed three times in distilled water and further treated in sealed teflon beakers with 1 M ammonia to dissolve biogenic opals.…”

Section: Leaching Proceduresmentioning

confidence: 99%

Geochemical and Sr–Nd isotopic variations in a deep-sea sediment core from Eastern Indian Ocean: Constraints on dust provenances, paleoclimate and volcanic eruption history in the last 300,000years

et al. 2015

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Geochemical and Sr-Nd isotopic variations in a deep-sea sediment core from eastern Indian Ocean: Constraints on dust provenances, palaeoclimate and volcanic eruption history in the last 300,000 years, Marine Geology (2015Geology ( ), doi: 10.1016Geology ( /j.margeo.2015 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.A C C E P T E D M A N U S C R I P T ka section than in the older section, which might be associated with increased ACCEPTED MANUSCRIPT A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPTAustralian continental aridity towards more recent time.

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Chemical characteristics of modern deep-sea metalliferous sediments in closed versus open basins, with emphasis on rare-earth elements and Nd isotopes

Barrett¹,

Jarvis

Hannington

et al. 2021

Earth-Science Reviews

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Nd–Sr isotope and REY geochemistry of metalliferous sediments in a low-temperature off-axis hydrothermal environment (Costa Rica margin)

Cited by 5 publications

References 69 publications

Mineralogy and crystal chemistry of Mn, Fe, Co, Ni, and Cu in a deep-sea Pacific polymetallic nodule

Mineralogy and crystal chemistry of Mn, Fe, Co, Ni, and Cu in a deep-sea Pacific polymetallic nodule

Geochemical and Sr–Nd isotopic variations in a deep-sea sediment core from Eastern Indian Ocean: Constraints on dust provenances, paleoclimate and volcanic eruption history in the last 300,000years

Chemical characteristics of modern deep-sea metalliferous sediments in closed versus open basins, with emphasis on rare-earth elements and Nd isotopes

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