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The Significance of Nanomineral Particles during the Growth Process of Polymetallic Nodules in the Western Pacific Ocean

As a huge reservoir of economic metallic elements, oceanic polymetallic nodules have important strategic significance and are one of the main research objects in marine geology, especially their formation process and genetic mechanism. In this study, polymetallic nodules from the cobalt-rich crust e...

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Detalles Bibliográficos
Autores principales: Huang, Qiangtai, He, Bo, Cai, Zhourong, Huang, Qianru
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9657869/
https://www.ncbi.nlm.nih.gov/pubmed/36360855
http://dx.doi.org/10.3390/ijerph192113972
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author Huang, Qiangtai
He, Bo
Cai, Zhourong
Huang, Qianru
author_facet Huang, Qiangtai
He, Bo
Cai, Zhourong
Huang, Qianru
author_sort Huang, Qiangtai
collection PubMed
description As a huge reservoir of economic metallic elements, oceanic polymetallic nodules have important strategic significance and are one of the main research objects in marine geology, especially their formation process and genetic mechanism. In this study, polymetallic nodules from the cobalt-rich crust exploration contract area in the Western Pacific Ocean were taken as the research object. Optical microscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS) were used for observation and testing. The results indicate that many nanomineral particles, mainly composed of Fe and Mn, developed in polymetallic nodules from the western Pacific Ocean. The solid–liquid interface process of nanomineral particles plays an important role in the growth and evolution of nodules. We propose that the growth process of polymetallic nodules in the western Pacific Ocean can be divided into three stages. First, terrigenous detritus nucleates, and nanomineral particles composed of Fe, Mn, and other elements form, aggregate and attach to the core to form the initial shell. Second, a dense layer of the shell forms under stable conditions. In the third stage, the redox conditions of the nodules change, and the polymetallic nodules experience a variety of interface process modifications.
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spelling pubmed-96578692022-11-15 The Significance of Nanomineral Particles during the Growth Process of Polymetallic Nodules in the Western Pacific Ocean Huang, Qiangtai He, Bo Cai, Zhourong Huang, Qianru Int J Environ Res Public Health Article As a huge reservoir of economic metallic elements, oceanic polymetallic nodules have important strategic significance and are one of the main research objects in marine geology, especially their formation process and genetic mechanism. In this study, polymetallic nodules from the cobalt-rich crust exploration contract area in the Western Pacific Ocean were taken as the research object. Optical microscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS) were used for observation and testing. The results indicate that many nanomineral particles, mainly composed of Fe and Mn, developed in polymetallic nodules from the western Pacific Ocean. The solid–liquid interface process of nanomineral particles plays an important role in the growth and evolution of nodules. We propose that the growth process of polymetallic nodules in the western Pacific Ocean can be divided into three stages. First, terrigenous detritus nucleates, and nanomineral particles composed of Fe, Mn, and other elements form, aggregate and attach to the core to form the initial shell. Second, a dense layer of the shell forms under stable conditions. In the third stage, the redox conditions of the nodules change, and the polymetallic nodules experience a variety of interface process modifications. MDPI 2022-10-27 /pmc/articles/PMC9657869/ /pubmed/36360855 http://dx.doi.org/10.3390/ijerph192113972 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Huang, Qiangtai
He, Bo
Cai, Zhourong
Huang, Qianru
The Significance of Nanomineral Particles during the Growth Process of Polymetallic Nodules in the Western Pacific Ocean
title The Significance of Nanomineral Particles during the Growth Process of Polymetallic Nodules in the Western Pacific Ocean
title_full The Significance of Nanomineral Particles during the Growth Process of Polymetallic Nodules in the Western Pacific Ocean
title_fullStr The Significance of Nanomineral Particles during the Growth Process of Polymetallic Nodules in the Western Pacific Ocean
title_full_unstemmed The Significance of Nanomineral Particles during the Growth Process of Polymetallic Nodules in the Western Pacific Ocean
title_short The Significance of Nanomineral Particles during the Growth Process of Polymetallic Nodules in the Western Pacific Ocean
title_sort significance of nanomineral particles during the growth process of polymetallic nodules in the western pacific ocean
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9657869/
https://www.ncbi.nlm.nih.gov/pubmed/36360855
http://dx.doi.org/10.3390/ijerph192113972
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