Assemblages and microthermometry of barite ore deposits from chorriaca anticline, Neuquén Province

In this contribution, the barium sulfate mineralization from Chorriaca anticline was studied. All mines are hosted in carbonate layers (Agua de la Mula stratigraphical unit, Agrio Formation) that evidence a strong lithological control. The assemblages is mainly composed of barite, calcite and iron o...

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Detalles Bibliográficos
Autores principales: Leal, P.R., Mateo, P.
Formato: JOUR
Materias:
Barite
Chorriaca
Fluid inclusions
Neuquén
anticline
barite
fluid inclusion
mineralization
ore deposit
Argentina
Neuquen
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00044822_v72_n2_p_Leal
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00044822_v72_n2_p_Leal
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spelling todo:paper_00044822_v72_n2_p_Leal2023-10-03T13:59:08Z Assemblages and microthermometry of barite ore deposits from chorriaca anticline, Neuquén Province Leal, P.R. Mateo, P. Barite Chorriaca Fluid inclusions Neuquén anticline barite fluid inclusion mineralization ore deposit Argentina Neuquen In this contribution, the barium sulfate mineralization from Chorriaca anticline was studied. All mines are hosted in carbonate layers (Agua de la Mula stratigraphical unit, Agrio Formation) that evidence a strong lithological control. The assemblages is mainly composed of barite, calcite and iron oxides. Their textures imply three mineralization events, from which the last one was the most important. Fluid inclusion studies on barite crystallized during this last event were carried out. The most representative primary fluid inclusions are composed of water with dissolved salts. Few of them also present hydrocarbons on the liquid phases. Microthermometry evidenced homogeneization temperatures above 300°C and solutions with low salinities. Regarding the reasons stated above we propose that this barite mineralization was generated by hydrothermal processes related to the magmatic activity of Neuquén basin. © 2015, Asociacion Geologica Argentina. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00044822_v72_n2_p_Leal
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Barite
Chorriaca
Fluid inclusions
Neuquén
anticline
barite
fluid inclusion
mineralization
ore deposit
Argentina
Neuquen
spellingShingle Barite
Chorriaca
Fluid inclusions
Neuquén
anticline
barite
fluid inclusion
mineralization
ore deposit
Argentina
Neuquen
Leal, P.R.
Mateo, P.
Assemblages and microthermometry of barite ore deposits from chorriaca anticline, Neuquén Province
topic_facet Barite
Chorriaca
Fluid inclusions
Neuquén
anticline
barite
fluid inclusion
mineralization
ore deposit
Argentina
Neuquen
description In this contribution, the barium sulfate mineralization from Chorriaca anticline was studied. All mines are hosted in carbonate layers (Agua de la Mula stratigraphical unit, Agrio Formation) that evidence a strong lithological control. The assemblages is mainly composed of barite, calcite and iron oxides. Their textures imply three mineralization events, from which the last one was the most important. Fluid inclusion studies on barite crystallized during this last event were carried out. The most representative primary fluid inclusions are composed of water with dissolved salts. Few of them also present hydrocarbons on the liquid phases. Microthermometry evidenced homogeneization temperatures above 300°C and solutions with low salinities. Regarding the reasons stated above we propose that this barite mineralization was generated by hydrothermal processes related to the magmatic activity of Neuquén basin. © 2015, Asociacion Geologica Argentina. All rights reserved.
format JOUR
author Leal, P.R.
Mateo, P.
author_facet Leal, P.R.
Mateo, P.
author_sort Leal, P.R.
title Assemblages and microthermometry of barite ore deposits from chorriaca anticline, Neuquén Province
title_short Assemblages and microthermometry of barite ore deposits from chorriaca anticline, Neuquén Province
title_full Assemblages and microthermometry of barite ore deposits from chorriaca anticline, Neuquén Province
title_fullStr Assemblages and microthermometry of barite ore deposits from chorriaca anticline, Neuquén Province
title_full_unstemmed Assemblages and microthermometry of barite ore deposits from chorriaca anticline, Neuquén Province
title_sort assemblages and microthermometry of barite ore deposits from chorriaca anticline, neuquén province
url http://hdl.handle.net/20.500.12110/paper_00044822_v72_n2_p_Leal
work_keys_str_mv AT lealpr assemblagesandmicrothermometryofbariteoredepositsfromchorriacaanticlineneuquenprovince
AT mateop assemblagesandmicrothermometryofbariteoredepositsfromchorriacaanticlineneuquenprovince
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