Cerros Amarillos: An alteration porphyry type system, Upper Miocene, Cordillera Principal, Mendoza
In the Cerros Amarillos area, Cordillera Principal of Mendoza province, Argentina (35°S, 70°W) it crops out an alteration zone which is spatially linked to volcanics of Upper Miocene age. It is characterized by early potassic alteration with a paragenesis of biotite-magnetite. It is overprinted by a...
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2009
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v65_n3_p566_Rubinstein http://hdl.handle.net/20.500.12110/paper_00044822_v65_n3_p566_Rubinstein |
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paper:paper_00044822_v65_n3_p566_Rubinstein2023-06-08T14:26:21Z Cerros Amarillos: An alteration porphyry type system, Upper Miocene, Cordillera Principal, Mendoza Rubinstein, Nora Alicia Etcheverría, Mariela Patricia Alteration paragenesis Porphyry system Skarn Sodic alteration Upper miocene albite magmatism metamorphism metasomatism Miocene outcrop paragenesis phyllite plagioclase porphyry potassic rock pyroxene skarn sodicity structural control Argentina Cerros Amarillos Mendoza In the Cerros Amarillos area, Cordillera Principal of Mendoza province, Argentina (35°S, 70°W) it crops out an alteration zone which is spatially linked to volcanics of Upper Miocene age. It is characterized by early potassic alteration with a paragenesis of biotite-magnetite. It is overprinted by a sericita-silica-carbonate paragenensis with associated albite. This later stage corresponds to a high level albite-sericite association which is prior to the phyllic alteration stage. Endoskarn facies comprising pyroxene breccias and plagio-clase-pyroxene veins also crops out in the area. The recognized paragenesis points to a porphyry system with sodic alteration. The stratigraphic controls and the geochronological data suggest a genetically link with the Upper Miocene magmatism. Fil:Rubinstein, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Etcheverría, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v65_n3_p566_Rubinstein http://hdl.handle.net/20.500.12110/paper_00044822_v65_n3_p566_Rubinstein |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Alteration paragenesis Porphyry system Skarn Sodic alteration Upper miocene albite magmatism metamorphism metasomatism Miocene outcrop paragenesis phyllite plagioclase porphyry potassic rock pyroxene skarn sodicity structural control Argentina Cerros Amarillos Mendoza |
| spellingShingle |
Alteration paragenesis Porphyry system Skarn Sodic alteration Upper miocene albite magmatism metamorphism metasomatism Miocene outcrop paragenesis phyllite plagioclase porphyry potassic rock pyroxene skarn sodicity structural control Argentina Cerros Amarillos Mendoza Rubinstein, Nora Alicia Etcheverría, Mariela Patricia Cerros Amarillos: An alteration porphyry type system, Upper Miocene, Cordillera Principal, Mendoza |
| topic_facet |
Alteration paragenesis Porphyry system Skarn Sodic alteration Upper miocene albite magmatism metamorphism metasomatism Miocene outcrop paragenesis phyllite plagioclase porphyry potassic rock pyroxene skarn sodicity structural control Argentina Cerros Amarillos Mendoza |
| description |
In the Cerros Amarillos area, Cordillera Principal of Mendoza province, Argentina (35°S, 70°W) it crops out an alteration zone which is spatially linked to volcanics of Upper Miocene age. It is characterized by early potassic alteration with a paragenesis of biotite-magnetite. It is overprinted by a sericita-silica-carbonate paragenensis with associated albite. This later stage corresponds to a high level albite-sericite association which is prior to the phyllic alteration stage. Endoskarn facies comprising pyroxene breccias and plagio-clase-pyroxene veins also crops out in the area. The recognized paragenesis points to a porphyry system with sodic alteration. The stratigraphic controls and the geochronological data suggest a genetically link with the Upper Miocene magmatism. |
| author |
Rubinstein, Nora Alicia Etcheverría, Mariela Patricia |
| author_facet |
Rubinstein, Nora Alicia Etcheverría, Mariela Patricia |
| author_sort |
Rubinstein, Nora Alicia |
| title |
Cerros Amarillos: An alteration porphyry type system, Upper Miocene, Cordillera Principal, Mendoza |
| title_short |
Cerros Amarillos: An alteration porphyry type system, Upper Miocene, Cordillera Principal, Mendoza |
| title_full |
Cerros Amarillos: An alteration porphyry type system, Upper Miocene, Cordillera Principal, Mendoza |
| title_fullStr |
Cerros Amarillos: An alteration porphyry type system, Upper Miocene, Cordillera Principal, Mendoza |
| title_full_unstemmed |
Cerros Amarillos: An alteration porphyry type system, Upper Miocene, Cordillera Principal, Mendoza |
| title_sort |
cerros amarillos: an alteration porphyry type system, upper miocene, cordillera principal, mendoza |
| publishDate |
2009 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v65_n3_p566_Rubinstein http://hdl.handle.net/20.500.12110/paper_00044822_v65_n3_p566_Rubinstein |
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AT rubinsteinnoraalicia cerrosamarillosanalterationporphyrytypesystemuppermiocenecordilleraprincipalmendoza AT etcheverriamarielapatricia cerrosamarillosanalterationporphyrytypesystemuppermiocenecordilleraprincipalmendoza |
| _version_ |
1768543446789783552 |