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Nanomaterial accumulation in boiling brines enhances epithermal bonanzas
Epithermal bonanza-type ores, characterized by weight-percent contents of e.g., gold and silver in a few mm to cm, are generated by mixtures of magmatic-derived hydrothermal brines and external fluids (e.g., meteoric) that transport a variety of metals to the site of deposition. However, the low sol...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10495403/ https://www.ncbi.nlm.nih.gov/pubmed/37696864 http://dx.doi.org/10.1038/s41598-023-41756-4 |
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author | Cano, Néstor González-Jiménez, José M. Camprubí, Antoni Domínguez-Carretero, Diego González-Partida, Eduardo Proenza, Joaquín A. |
author_facet | Cano, Néstor González-Jiménez, José M. Camprubí, Antoni Domínguez-Carretero, Diego González-Partida, Eduardo Proenza, Joaquín A. |
author_sort | Cano, Néstor |
collection | PubMed |
description | Epithermal bonanza-type ores, characterized by weight-percent contents of e.g., gold and silver in a few mm to cm, are generated by mixtures of magmatic-derived hydrothermal brines and external fluids (e.g., meteoric) that transport a variety of metals to the site of deposition. However, the low solubilities of precious metals in hydrothermal fluids cannot justify the high concentrations necessary to produce such type of hyper-enriched metal ore. Here we show that boiling metal-bearing brines can produce, aggregate, and accumulate metal nanomaterials, ultimately leading to focused gold + silver ± copper over-enrichments. We found direct nano-scale evidence of nanoparticulate gold- and/or silver-bearing ores formed via nonclassical growth (i.e., nanomaterial attachment) during boiling in an intermediate-sulfidation epithermal bonanza. The documented processes may explain the generation of bonanzas in metal-rich brines from a range of mineral deposit types. |
format | Online Article Text |
id | pubmed-10495403 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-104954032023-09-13 Nanomaterial accumulation in boiling brines enhances epithermal bonanzas Cano, Néstor González-Jiménez, José M. Camprubí, Antoni Domínguez-Carretero, Diego González-Partida, Eduardo Proenza, Joaquín A. Sci Rep Article Epithermal bonanza-type ores, characterized by weight-percent contents of e.g., gold and silver in a few mm to cm, are generated by mixtures of magmatic-derived hydrothermal brines and external fluids (e.g., meteoric) that transport a variety of metals to the site of deposition. However, the low solubilities of precious metals in hydrothermal fluids cannot justify the high concentrations necessary to produce such type of hyper-enriched metal ore. Here we show that boiling metal-bearing brines can produce, aggregate, and accumulate metal nanomaterials, ultimately leading to focused gold + silver ± copper over-enrichments. We found direct nano-scale evidence of nanoparticulate gold- and/or silver-bearing ores formed via nonclassical growth (i.e., nanomaterial attachment) during boiling in an intermediate-sulfidation epithermal bonanza. The documented processes may explain the generation of bonanzas in metal-rich brines from a range of mineral deposit types. Nature Publishing Group UK 2023-09-11 /pmc/articles/PMC10495403/ /pubmed/37696864 http://dx.doi.org/10.1038/s41598-023-41756-4 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Cano, Néstor González-Jiménez, José M. Camprubí, Antoni Domínguez-Carretero, Diego González-Partida, Eduardo Proenza, Joaquín A. Nanomaterial accumulation in boiling brines enhances epithermal bonanzas |
title | Nanomaterial accumulation in boiling brines enhances epithermal bonanzas |
title_full | Nanomaterial accumulation in boiling brines enhances epithermal bonanzas |
title_fullStr | Nanomaterial accumulation in boiling brines enhances epithermal bonanzas |
title_full_unstemmed | Nanomaterial accumulation in boiling brines enhances epithermal bonanzas |
title_short | Nanomaterial accumulation in boiling brines enhances epithermal bonanzas |
title_sort | nanomaterial accumulation in boiling brines enhances epithermal bonanzas |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10495403/ https://www.ncbi.nlm.nih.gov/pubmed/37696864 http://dx.doi.org/10.1038/s41598-023-41756-4 |
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