Results 31 to 40 of about 1,157 (196)

Hydrocarbon-derived ferromanganese nodules in carbonate-mud mounds from the Gulf of Cadiz: Mud-breccia sediments and clasts as nucleation sites [PDF]

open access: yes, 2009
More than 500 F e - M n nodules were sampled during the Anastasya-01 cruise (TASYO project) along the continental margin of the Gulf of Cadiz (eastern Central Atlantic), at the confluence of the Mediterranean Sea with the Atlantic Ocean, where ...
Torres Pérez-Hidalgo, Trinidad José
core   +2 more sources

Copper-nickel-rich, amalgamated ferromanganese crust-nodule deposits from Shatsky Rise, NW Pacific [PDF]

open access: yes, 2012
A unique set of ferromanganese crusts and nodules collected from Shatsky Rise (SR), NW Pacific, were analyzed for mineralogical and chemical compositions, and dated using Be isotopes and cobalt chronometry.
Andel   +66 more
core   +1 more source

Thorium and uranium isotopes in a manganese nodule from the Peru basin determined by alpha spectrometry and thermal ionization mass spectrometry (TIMS): Are manganese supply and growth related to climate? [PDF]

open access: yes, 1996
Thorium- and uranium isotopes were measured in a diagenetic manganese nodule from the Peru basin applying alpha- and thermal ionization mass spectrometry (TIMS).
Bollhöfer, A.   +4 more
core   +1 more source

Reconstructing the evolution of the submarine Monterey Canyon System from Os, Nd, and Pb isotopes in hydrogenetic Fe-Mn crusts [PDF]

open access: yes, 2017
Author Posting. © American Geophysical Union, 2017. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geochemistry, Geophysics, Geosystems 18 (2017):
Blusztajn, Jerzy S.   +6 more
core   +1 more source

Minor element geochemistry of Lake Michigan ferromanganese nodules [PDF]

open access: yesEarth and Planetary Science Letters, 1970
Abstract Samples of ferromanganese nodules from several localities in Lake Michigan have been analyzed for their minor element content utilizing neutron activation techniques. The thorium and uranium levels in Lake Michigan nodules exhibit marked dissimilarities with marine nodules.
Edgington, David N., Callender, Edward
openaire   +2 more sources

Characterization of metalliferous sediment from a low-temperature hydrothermal environment on the Eastern Flank of the East Pacific Rise [PDF]

open access: yes, 2008
Metalliferous deposits are described from the eastern flank of the East Pacific Rise (EPR) offshore Costa Rica, close to a basaltic seamount called “Dorado high”.
Adatte, Thierry   +4 more
core   +4 more sources

Optimización de parámetros para la extracción de elementos desde minerales en medios ácido [PDF]

open access: yes, 2020
[SPA] Esta tesis doctoral se presenta bajo la modalidad de compendio de publicaciones. Actualmente, la gran minería del cobre chilena se encuentra frente a nuevos problemas y desafíos a superar.
Toro Villarroel, Norman Rodrigo
core   +2 more sources

Potential mitigation and restoration actions in ecosystems impacted by seabed mining [PDF]

open access: yes, 2018
Mining impacts will affect local populations to different degrees. Impacts range from removal of habitats and possible energy sources to pollution and smaller-scale alterations in local habitats that, depending on the degree of disturbance, can lead to ...
Aguilar de Soto   +175 more
core   +9 more sources

Ecological functions of uncultured microorganisms in the cobalt-rich ferromanganese crust of a seamount in the central Pacific are elucidated by fosmid sequencing [PDF]

open access: yes, 2014
Author Posting. © The Author(s), 2014. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution.
Cheng, Hong   +7 more
core   +1 more source

On the discovery of ferromanganese nodules in the World Ocean

open access: yesDeep Sea Research Part I: Oceanographic Research Papers, 2021
Abstract For a century, the discovery of ferromanganese (Fe–Mn) nodules in the World Ocean was universally and indisputably credited to the Challenger circum-global oceanographic expedition of 1872–1876, during which the first manganese nodules and crusts were dredged up from the sea floor in February–March 1873.
Igor M. Belkin   +2 more
openaire   +2 more sources

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