World‑class amethyst‑agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopes
Información suplemetaria en: doi.org/10.1007/s00126-024-01310-2
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| Outros autores: | , , , , , , , , , , , , |
| Formato: | article |
| Idioma: | inglés |
| Publicado: |
2025
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| Subjects: | |
| Acceso en liña: | https://hdl.handle.net/20.500.12008/51035 |
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| _version_ | 1868890140977397760 |
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| author | Arduin Rode, Fiorella |
| author2 | Sosa, Graciela Van den Kerkhof, Alfons Krüger, Yves Bajnai, David Pack, Andreas Di Rocco, Tommaso Oyhantçabal Cironi, Pedro Bernardo Wemmer, K. Herwartz, Daniel Klipsch, Swea Wiegand, Bettina Siegesmund, S. Hueck, M. |
| author2_role | author author author author author author author author author author author author author |
| author_browse | Arduin Rode, Fiorella Bajnai, David Di Rocco, Tommaso Herwartz, Daniel Hueck, M. Klipsch, Swea Krüger, Yves Oyhantçabal Cironi, Pedro Bernardo Pack, Andreas Siegesmund, S. Sosa, Graciela Van den Kerkhof, Alfons Wemmer, K. Wiegand, Bettina |
| author_facet | Arduin Rode, Fiorella Sosa, Graciela Van den Kerkhof, Alfons Krüger, Yves Bajnai, David Pack, Andreas Di Rocco, Tommaso Oyhantçabal Cironi, Pedro Bernardo Wemmer, K. Herwartz, Daniel Klipsch, Swea Wiegand, Bettina Siegesmund, S. Hueck, M. |
| author_role | author |
| collection | COLIBRI |
| dc.contributor.none.fl_str_mv | Arduin Rode Fiorella Sosa Graciela Van den Kerkhof Alfons Krüger Yves Bajnai David Pack Andreas Di Rocco Tommaso Oyhantçabal Cironi Pedro Bernardo, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas. Wemmer K. Herwartz Daniel Klipsch Swea Wiegand Bettina Siegesmund S. Hueck M. |
| dc.creator.none.fl_str_mv | Arduin Rode, Fiorella Sosa, Graciela Van den Kerkhof, Alfons Krüger, Yves Bajnai, David Pack, Andreas Di Rocco, Tommaso Oyhantçabal Cironi, Pedro Bernardo Wemmer, K. Herwartz, Daniel Klipsch, Swea Wiegand, Bettina Siegesmund, S. Hueck, M. |
| dc.date.none.fl_str_mv | 2025-08-13T17:24:37Z 2025-08-13T17:24:37Z 2025 |
| dc.format.none.fl_str_mv | 25 h application/pdf |
| dc.identifier.none.fl_str_mv | Arduin Rode, F, Sosa, G, Van den Kerkhof, A [y otros autores]. "World‑class amethyst‑agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopes". Mineralium Deposita. [en línea] 2025, 60(4): 697-721. 25 h. DOI: 10.1007/s00126-024-01310-2 1432-1866 https://hdl.handle.net/20.500.12008/51035 10.1007/s00126-024-01310-2 |
| dc.language.none.fl_str_mv | en eng |
| dc.publisher.none.fl_str_mv | Springer |
| dc.relation.none.fl_str_mv | Mineralium Deposita, 2025, 60(4): 697-721. |
| dc.rights.none.fl_str_mv | info:eu-repo/semantics/openAccess Licencia Creative Commons Atribución (CC - By 4.0) |
| dc.source.none.fl_str_mv | reponame:COLIBRI instname:Universidad de la República instacron:Universidad de la República |
| dc.subject.none.fl_str_mv | Amethyst geodes Fluid inclusions Isotope geochemistry Triple oxygen isotopes Los Catalanes Gemmological District Paraná-Etendeka LIP |
| dc.title.none.fl_str_mv | World‑class amethyst‑agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopes |
| dc.type.none.fl_str_mv | Artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| description | Información suplemetaria en: doi.org/10.1007/s00126-024-01310-2 |
| eu_rights_str_mv | openAccess |
| format | article |
| id | anni_9741cc52414f3d299eb73cd8024cc3d4 |
| identifier_str_mv | Arduin Rode, F, Sosa, G, Van den Kerkhof, A [y otros autores]. "World‑class amethyst‑agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopes". Mineralium Deposita. [en línea] 2025, 60(4): 697-721. 25 h. DOI: 10.1007/s00126-024-01310-2 1432-1866 10.1007/s00126-024-01310-2 |
| instacron_str | Universidad de la República |
| institution | Universidad de la República |
| instname_str | Universidad de la República |
| language | eng |
| language_invalid_str_mv | en |
| network_acronym_str | anni |
| network_name_str | oai-lr-anni |
| oai_identifier_str | oai:colibri.udelar.edu.uy:20.500.12008/51035 |
| publishDate | 2025 |
| publishDateSort | 2025 |
| publisher.none.fl_str_mv | Springer |
| reponame_str | COLIBRI |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | Licencia Creative Commons Atribución (CC - By 4.0) |
| spelling | World‑class amethyst‑agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopesArduin Rode, FiorellaSosa, GracielaVan den Kerkhof, AlfonsKrüger, YvesBajnai, DavidPack, AndreasDi Rocco, TommasoOyhantçabal Cironi, Pedro BernardoWemmer, K.Herwartz, DanielKlipsch, SweaWiegand, BettinaSiegesmund, S.Hueck, M.Amethyst geodesFluid inclusionsIsotope geochemistryTriple oxygen isotopesLos Catalanes Gemmological DistrictParaná-Etendeka LIPInformación suplemetaria en: doi.org/10.1007/s00126-024-01310-2The amethyst and agate geodes from the Los Catalanes Gemmological District in Uruguay represent one of the main deposits of its kind worldwide. The geometry of the deposit is horizontal, with an irregular distribution of amethyst geodes within the upper level of the basalt lava flows and shows strong variations in their abundance, as well as quality, geometry, and shape. Reliable exploration guides are scarce, and the limited knowledge of the geological parameters controlling its occurrence makes exploration unpredictable, leading to inaccurate reserve estimation. Based on cutting-edge methods including nucleation-assisted microthermometry of one-phase fluid inclusions and determination of triple oxygen isotope in silicates and carbonates, as well as analysis of geode-hosted water and groundwater, we estimate the crystallisation temperatures in the range between 15 and 60 °C. These low temperatures point to amethyst crystallisation after the emplacement of the complete basalt pile. The mineralising fluid shows isotopic signatures consistent with meteoric water and very low salinities from pure water up to rarely over 3 wt% NaCl-eq., likely sourced from the groundwater hosted in the aquifers in the basaltic sequence and underlying units. Based on the insights provided by the new data, we propose the combination of open- and closed-system crystallisation inside pre-existing cavities due to the episodic infiltration of meteoric water in a rather stable geological context.SpringerArduin Rode FiorellaSosa GracielaVan den Kerkhof AlfonsKrüger YvesBajnai DavidPack AndreasDi Rocco TommasoOyhantçabal Cironi Pedro Bernardo, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas.Wemmer K.Herwartz DanielKlipsch SweaWiegand BettinaSiegesmund S.Hueck M.2025-08-13T17:24:37Z2025-08-13T17:24:37Z2025Artículoinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion25 happlication/pdfArduin Rode, F, Sosa, G, Van den Kerkhof, A [y otros autores]. "World‑class amethyst‑agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopes". Mineralium Deposita. [en línea] 2025, 60(4): 697-721. 25 h. DOI: 10.1007/s00126-024-01310-21432-1866https://hdl.handle.net/20.500.12008/5103510.1007/s00126-024-01310-2reponame:COLIBRIinstname:Universidad de la Repúblicainstacron:Universidad de la RepúblicaenengMineralium Deposita, 2025, 60(4): 697-721.Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)info:eu-repo/semantics/openAccessLicencia Creative Commons Atribución (CC - By 4.0)oai:colibri.udelar.edu.uy:20.500.12008/510352026-04-14T10:10:55Z |
| spellingShingle | World‑class amethyst‑agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopes Arduin Rode, Fiorella Amethyst geodes Fluid inclusions Isotope geochemistry Triple oxygen isotopes Los Catalanes Gemmological District Paraná-Etendeka LIP |
| status_str | publishedVersion |
| title | World‑class amethyst‑agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopes |
| title_full | World‑class amethyst‑agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopes |
| title_fullStr | World‑class amethyst‑agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopes |
| title_full_unstemmed | World‑class amethyst‑agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopes |
| title_short | World‑class amethyst‑agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopes |
| title_sort | World‑class amethyst‑agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopes |
| topic | Amethyst geodes Fluid inclusions Isotope geochemistry Triple oxygen isotopes Los Catalanes Gemmological District Paraná-Etendeka LIP |
| url | https://hdl.handle.net/20.500.12008/51035 |