Results 51 to 60 of about 102,399 (167)

OTUs of commonly detected in the ferromanganese crusts and nodules.

open access: yes, 2017
OTUs of commonly detected in the ferromanganese crusts and nodules.
Katsuhiko Suzuki (438832)   +5 more
core   +1 more source

Geochemical Behaviors of Heavy Metal(loid)s in Soil Ferromanganese Nodules in Typical Karst Areas in Southwest China

open access: yesAgronomy, 2023
The ferromanganese nodules (FMNs) developing in soils of karst regions are naturally characterized by high heavy metal(loid)s contents due to several geological factors.
Wenbing Ji   +8 more
doaj   +1 more source

Gold Mineralizing Potential of the Late Triassic Calcareous, Carbonaceous and Sulfide‐Rich Sedimentary Rocks of the Isatomae Formation in the South Kitakami Belt, Japan

open access: yesResource Geology, Volume 76, Issue 1, January‐December 2026.
Isatomae Formation illustrating mineralogical and geochemical characteristics. (a) Overview of the Isatomae Formation, showing the marine anoxic environment and related biogenic processes. (b) Deposition of metal‐rich Fe oxyhydroxides were transformed into sulfides through diagenesis and low grade metamorphism.
June Born Born   +4 more
wiley   +1 more source

(Volume 2, Table 34, page 451) Determination of niobium for manganes nodules and ferromanganese crusts from the Carlsberg Ridge

open access: yes, 1970
(Volume 2, Table 34, page 451) Determination of niobium for manganes nodules and ferromanganese crusts from the Carlsberg ...
Geoffrey P Glasby (6961466)   +1 more
core   +1 more source

Contents of cadmium, iron and manganese in various parts of manganese nodules and ferromanganese crusts

open access: yes, 2022
Mn nodules and ferromanganese crusts from the Pacific ocean were retrieved during expeditions of the R/V Vytiaz and analysed for their chemical composition. Cadmium contents were determined by atomic absorption spectrometry with non-flame atomization and
Oreshkin, Valentin N   +2 more
core   +1 more source

Equilibrium Fractionation of Stable Strontium Isotopes During Adsorption to Mn Oxides

open access: yesGeochemistry, Geophysics, Geosystems
Understanding the stable strontium isotope fractionation between seawater and ferromanganese crusts/nodules is crucial for reconstructing seawater Sr isotopic history.
Ben Liu   +4 more
doaj   +1 more source

Archaeal and bacterial communities in deep-sea hydrogenetic ferromanganese crusts on old seamounts of the northwestern Pacific.

open access: yesPLoS ONE, 2017
Deep-sea ferromanganese crusts are found ubiquitously on the surface of seamounts of the world's oceans. Considering the wide distribution of the crusts, archaeal and bacterial communities on these crusts potentially play a significant role in ...
Shota Nitahara   +5 more
doaj   +1 more source

Percent‐Level Copper Mineralisation Promoted by Copper‐Tolerant Iron‐Oxidising Bacteria in Circumneutral Mine Drainage

open access: yesEnvironmental Microbiology, Volume 27, Issue 12, December 2025.
A neutrophilic Fe(II)‐oxidizing Gallionellaceae was isolated from circumneutral Cu mine drainage. It mediated Fe(III) biomineralization, resulting in pronounced Cu accumulation (up to 2 wt%) within the solid precipitates. ABSTRACT Geomicrobiology of copper (Cu) and iron (Fe) in circumneutral‐pH drainage from a Japanese Cu mine was investigated, with a ...
Kazuya Tanimoto   +5 more
wiley   +1 more source

New Approach for Direct Determination of Manganese Valence State in Ferromanganese Nodules by X-ray Fluorescence Spectrometry

open access: yes, 2023
A new X-ray fluorescence technique is proposed as an alternative to the labor-consuming volumetric method for the estimation of manganese valence state in ferromanganese nodules.
Victor M. Chubarov
core   +1 more source

Almost billfish: convergent longirostry, micro‐dentition, and possible glandular sinuses in a large teleost fish from the Upper Cretaceous of Northern Italy

open access: yesJournal of Anatomy, Volume 247, Issue 6, Page 1109-1130, December 2025.
A fossil rostrum fragment of a large teleost fish from the Upper Cretaceous of Northern Italy reveals remarkable anatomical convergences with Cenozoic and Recent billfishes (marlins, swordfishes, and akin). The extinct group Plethodidae independently acquired a long snout, micro‐teeth, and oil‐gland sinuses well before the evolution of true billfishes.
Giovanni Serafini   +5 more
wiley   +1 more source

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