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Volcán Maipo ISSN 0328-2333 Programa Nacional de Cartas Geológicas de la República Argentina 1:250.0001:250.000 Hoja Geológica 3569-I Volcán Maipo Vista panorámica del flanco oriental del volcán Maipo. Provincia de Mendoza Patricia Sruoga, Mariela Etcheverría, Alicia Folguera y David Repol Neotectónica: José M. Cortés Recursos Minerales: Juan Carlos Zanettini Supervisión: Luis Fauqué Boletin Nº 290 Buenos Aires - 2005 Programa Nacional de Cartas Geológicas de la República Argentina 1:250.000 Hoja Geológica 3569-I Volcán Maipo Provincia de Mendoza Patricia Sruoga, Mariela Etcheverría, Alicia Folguera y David Repol Neotectónica: José M. Cortés Recursos Minerales: Juan Carlos Zanettini Supervisión: Luis Fauqué Normas, dirección y supervisión del Instituto de Geología y Recursos Minerales SERVICIO GEOLÓGICO MINERO ARGENTINO INSTITUTO DE GEOLOGÍA Y RECURSOS MINERALES Boletín Nº 290 Buenos Aires 2005 SERVICIO GEOLÓGICO MINERO ARGENTINO Presidente: Ing. Jorge Mayoral Secretario Ejecutivo: Pedro Alcántara INSTITUTO DE GEOLOGÍA Y RECURSOS MINERALES Director: Roberto F. Page DIRECCIÓN DE GEOLOGÍA REGIONAL Director: José E. Mendía SEGEMAR Avenida Julio A. Roca 651 • 10º Piso • Telefax 4349-4450/3115 (C1067ABB) Buenos Aires • República Argentina www.segemar.gov.ar / [email protected] Referencia bibliográfica SRUOGA, P., M. ETCHEVERRÍA, A. FOLGUERA, D. REPOL, J. M. CORTÉS y J. C. ZANETTINI, 2005. Hoja Geológica 3569-I, Volcán Maipo. Provincia de Mendoza. Instituto de Geología y Recursos Minerales, Servicio Geológico Minero Argentino. Boletín 290, 92 p. Buenos Aires. ISSN 0328–2333 Es propiedad del SEGEMAR • Prohibida su reproducción CONTENIDO RESUMEN ...................................................................................................... 1 ABSTRACT ...................................................................................................... 2 1. INTRODUCCIÓN ...................................................................................................... 3 Ubicación de la hoja y área que abarca .................................................................................... 3 Naturaleza del trabajo ...................................................................................................... 4 Investigaciones anteriores ......................................................................................................4 2. ESTRATIGRAFÍA ...................................................................................................... 5 Relaciones generales ...................................................................................................... 5 2.1. Paleozoico ...................................................................................................... 5 2.1.1. Ordovícico - Silúrico ...................................................................................................... 5 Formación La Horqueta ....................................................................................... 5 Formación Las Lagunitas..................................................................................... 7 2.1.2. Carbonífero ...................................................................................................... 9 Tonalita Carrizalito ...................................................................................................... 9 2.1.3. Carbonífero - Pérmico inferior ......................................................................................... 10 Formación El Imperial ........................................................................................ 10 2.2. Paleozoico - Mesozoico .................................................................................................... 11 2.2.1. Pérmico - Triásico .................................................................................................... 11 Formación Choiyoi ............................................................................................. 11 2.3. Mesozoico .................................................................................................... 15 2.3.1. Triásico - Jurásico .................................................................................................... 15 Formación Arroyo Malo .................................................................................... 15 2.3.2. Jurásico .................................................................................................... 16 Grupo Cuyo .................................................................................................... 16 Formación El Freno............................................................................................ 17 Formación Puesto Araya ................................................................................... 18 Formación El Codo ............................................................................................ 19 Fomación Tábanos ............................................................................................. 21 Grupo Lotena .................................................................................................... 21 Formación Lotena y Formación La Manga ....................................................... 21 Formación Auquilco (Yeso Principal) ................................................................ 22 2.3.3. Jurásico superior - Cretácico ........................................................................................... 23 Grupo Mendoza .................................................................................................... 23 Formación Río Damas ....................................................................................... 24 Formación Tordillo ............................................................................................. 25 Formación Vaca Muerta .................................................................................... 26 Formación Chachao y Formación Agrio ............................................................. 28 Formación Vaca Muerta, Formación Chachao y Formación Agrio ................... 30 2.3.4. Cretácico inferior - superior .............................................................................................30 Grupo Rayoso .................................................................................................... 30 2.3.5. Cretácico superior .................................................................................................... 32 Grupo Neuquén .................................................................................................. 32 Formación Saldeño............................................................................................. 33 2.4. Mesozoico - Cenozoico .................................................................................................... 33 2.4.1. Cretácico superior - paleógeno ........................................................................................ 33 Grupo Malargüe .................................................................................................... 33 2.5. Cenozoico .................................................................................................... 34 2.5.1. Paleógeno .................................................................................................... 34 2.5.1.1. Oligoceno .................................................................................................... 34 Formación Molle ................................................................................................ 34 2.5.2. Paleógeno - Neógeno .................................................................................................... 35 2.5.2.1. Oligoceno superior- Mioceno inferior ....................................................................... 35 Formación Palaoco ............................................................................................ 35 2.5.3. Neógeno .................................................................................................... 37 2.5.3.1. Mioceno medio .................................................................................................... 37 Formación Papal ................................................................................................ 37 Formación Agua de la Piedra ............................................................................ 39 2.5.3.2. Mioceno medio - superior ......................................................................................... 41 Formación Huincán ............................................................................................ 41 2.5.3.3. Mioceno superior .................................................................................................... 42 Formación Loma Fiera....................................................................................... 42 2.5.3.4. Plioceno .................................................................................................... 43 Formación Tristeza............................................................................................. 43 Formación Agua de la Piedra, Formación Loma Fiera y Formación Tristeza.......................................................................................... 44 2.5.4. Neógeno - Cuaternario .................................................................................................... 45 2.5.4.1. Plioceno-Pleistoceno inferior..................................................................................... 45 Formación Coyocho ..........................................................................................
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