Mineral Phase-Element Associations Based on Sequential Leaching of Ferromanganese Crusts, Amerasia Basin Arctic Ocean
Ferromanganese (FeMn) crusts from Mendeleev Ridge, Chukchi Borderland, and Alpha Ridge, in the Amerasia Basin, Arctic Ocean, are similar based on morphology and chemical composition. The crusts are characterized by a two- to four-layered stratigraphy. The chemical composition of the Arctic crusts di...
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Online Access: | http://hdl.handle.net/10174/25530 https://www.mdpi.com/2075-163X/8/10/460 https://doi.org/10.3390/min8100460 |
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ftunivevora:oai:dspace.uevora.pt:10174/25530 2023-09-05T13:11:40+02:00 Mineral Phase-Element Associations Based on Sequential Leaching of Ferromanganese Crusts, Amerasia Basin Arctic Ocean Konstantinova, Natalia Hein, James R. Gartman, Amy Mizell, Kira Barrulas, Pedro Cherkashov, Georgy Mikhailik, Pavel Khanchuk, Alexander 2018 http://hdl.handle.net/10174/25530 https://www.mdpi.com/2075-163X/8/10/460 https://doi.org/10.3390/min8100460 por por Konstantinova, N., Hein, J.R., Gartman, A., Mizell, K., Barrulas, P., Cherkashov, G., Mikhailik, P., Khanchuk, A. (2018). Mineral phase-element associations based on sequential leaching of ferromanganese crusts, Amerasia Basin Arctic ocean. Minerals, 8 (10), art. no. 460. DOI:10.3390/min8100460 https://www.mdpi.com/2075-163X/8/10/460 http://hdl.handle.net/10174/25530 nd pbarrulas@uevora.pt 395 doi:10.3390/min8100460 restrictedAccess article 2018 ftunivevora https://doi.org/10.3390/min8100460 2023-08-14T17:44:33Z Ferromanganese (FeMn) crusts from Mendeleev Ridge, Chukchi Borderland, and Alpha Ridge, in the Amerasia Basin, Arctic Ocean, are similar based on morphology and chemical composition. The crusts are characterized by a two- to four-layered stratigraphy. The chemical composition of the Arctic crusts differs significantly from hydrogenetic crusts from elsewhere of global ocean by high mean Fe/Mn ratios, high As, Li, V, Sc, and Th concentrations, and high detrital contents. Here, we present element distributions through crust stratigraphic sections and element phase association using several complementary techniques such as SEM-EDS, LA-ICP-MS, and sequential leaching, a widely employed method of element phase association that dissolves mineral phases of different stability step-by-step: Exchangeable cations and Ca carbonates, Mn-oxides, Fe-hydroxides, and residual fraction. Sequential leaching shows that the Arctic crusts have higher contents of most elements characteristic of the aluminosilicate phase than do Pacific crusts. Elements have similar distributions between the hydrogenetic Mn and Fe phases in all the Arctic and Pacific crusts. The main host phases for the elements enriched in the Arctic crusts over Pacific crusts (Li, As, Th, and V) are the Mn-phase for Li and Fe-phase for As, Th, and V; those elements also have higher contents in the residual aluminosilicate phase. Thus, higher concentrations of Li, As, Th, and V likely occur in the dissolved and particulate phases in bottom waters where the Arctic crusts grow, which has been shown to be true for Sc, also highly enriched in the crusts. The phase distributions of elements within the crust layers is mostly consistent among the Arctic crusts, being somewhat different in element concentrations in the residual phase Article in Journal/Newspaper alpha ridge Arctic Arctic Arctic Ocean Chukchi Repositório Científico da Universidade de Évora Alpha Ridge ENVELOPE(-120.000,-120.000,85.500,85.500) Amerasia Basin ENVELOPE(-170.000,-170.000,80.000,80.000) Arctic Arctic Ocean Chukchi Borderland ENVELOPE(-165.000,-165.000,77.000,77.000) Pacific Minerals 8 10 460 |
institution |
Open Polar |
collection |
Repositório Científico da Universidade de Évora |
op_collection_id |
ftunivevora |
language |
Portuguese |
description |
Ferromanganese (FeMn) crusts from Mendeleev Ridge, Chukchi Borderland, and Alpha Ridge, in the Amerasia Basin, Arctic Ocean, are similar based on morphology and chemical composition. The crusts are characterized by a two- to four-layered stratigraphy. The chemical composition of the Arctic crusts differs significantly from hydrogenetic crusts from elsewhere of global ocean by high mean Fe/Mn ratios, high As, Li, V, Sc, and Th concentrations, and high detrital contents. Here, we present element distributions through crust stratigraphic sections and element phase association using several complementary techniques such as SEM-EDS, LA-ICP-MS, and sequential leaching, a widely employed method of element phase association that dissolves mineral phases of different stability step-by-step: Exchangeable cations and Ca carbonates, Mn-oxides, Fe-hydroxides, and residual fraction. Sequential leaching shows that the Arctic crusts have higher contents of most elements characteristic of the aluminosilicate phase than do Pacific crusts. Elements have similar distributions between the hydrogenetic Mn and Fe phases in all the Arctic and Pacific crusts. The main host phases for the elements enriched in the Arctic crusts over Pacific crusts (Li, As, Th, and V) are the Mn-phase for Li and Fe-phase for As, Th, and V; those elements also have higher contents in the residual aluminosilicate phase. Thus, higher concentrations of Li, As, Th, and V likely occur in the dissolved and particulate phases in bottom waters where the Arctic crusts grow, which has been shown to be true for Sc, also highly enriched in the crusts. The phase distributions of elements within the crust layers is mostly consistent among the Arctic crusts, being somewhat different in element concentrations in the residual phase |
format |
Article in Journal/Newspaper |
author |
Konstantinova, Natalia Hein, James R. Gartman, Amy Mizell, Kira Barrulas, Pedro Cherkashov, Georgy Mikhailik, Pavel Khanchuk, Alexander |
spellingShingle |
Konstantinova, Natalia Hein, James R. Gartman, Amy Mizell, Kira Barrulas, Pedro Cherkashov, Georgy Mikhailik, Pavel Khanchuk, Alexander Mineral Phase-Element Associations Based on Sequential Leaching of Ferromanganese Crusts, Amerasia Basin Arctic Ocean |
author_facet |
Konstantinova, Natalia Hein, James R. Gartman, Amy Mizell, Kira Barrulas, Pedro Cherkashov, Georgy Mikhailik, Pavel Khanchuk, Alexander |
author_sort |
Konstantinova, Natalia |
title |
Mineral Phase-Element Associations Based on Sequential Leaching of Ferromanganese Crusts, Amerasia Basin Arctic Ocean |
title_short |
Mineral Phase-Element Associations Based on Sequential Leaching of Ferromanganese Crusts, Amerasia Basin Arctic Ocean |
title_full |
Mineral Phase-Element Associations Based on Sequential Leaching of Ferromanganese Crusts, Amerasia Basin Arctic Ocean |
title_fullStr |
Mineral Phase-Element Associations Based on Sequential Leaching of Ferromanganese Crusts, Amerasia Basin Arctic Ocean |
title_full_unstemmed |
Mineral Phase-Element Associations Based on Sequential Leaching of Ferromanganese Crusts, Amerasia Basin Arctic Ocean |
title_sort |
mineral phase-element associations based on sequential leaching of ferromanganese crusts, amerasia basin arctic ocean |
publishDate |
2018 |
url |
http://hdl.handle.net/10174/25530 https://www.mdpi.com/2075-163X/8/10/460 https://doi.org/10.3390/min8100460 |
long_lat |
ENVELOPE(-120.000,-120.000,85.500,85.500) ENVELOPE(-170.000,-170.000,80.000,80.000) ENVELOPE(-165.000,-165.000,77.000,77.000) |
geographic |
Alpha Ridge Amerasia Basin Arctic Arctic Ocean Chukchi Borderland Pacific |
geographic_facet |
Alpha Ridge Amerasia Basin Arctic Arctic Ocean Chukchi Borderland Pacific |
genre |
alpha ridge Arctic Arctic Arctic Ocean Chukchi |
genre_facet |
alpha ridge Arctic Arctic Arctic Ocean Chukchi |
op_relation |
Konstantinova, N., Hein, J.R., Gartman, A., Mizell, K., Barrulas, P., Cherkashov, G., Mikhailik, P., Khanchuk, A. (2018). Mineral phase-element associations based on sequential leaching of ferromanganese crusts, Amerasia Basin Arctic ocean. Minerals, 8 (10), art. no. 460. DOI:10.3390/min8100460 https://www.mdpi.com/2075-163X/8/10/460 http://hdl.handle.net/10174/25530 nd pbarrulas@uevora.pt 395 doi:10.3390/min8100460 |
op_rights |
restrictedAccess |
op_doi |
https://doi.org/10.3390/min8100460 |
container_title |
Minerals |
container_volume |
8 |
container_issue |
10 |
container_start_page |
460 |
_version_ |
1776196701041721344 |