Petrology and provenance of the Toro Negro Formation (Neogene) of the Vinchina broken-foreland basin (Central Andes of Argentina)

Detrital modes of sandstones and conglomerates of the Toro Negro Formation (Late Miocene-early Pliocene) were used to analyze the evolution of the broken-foreland stage of the Vinchina Basin (28°30'-29°00' S and 68°30'-68°20' W) of NW Argentina. This basin located in the Western...

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Autores principales: Ciccioli, P.L., Marenssi, S.A., Limarino, C.O.
Formato: JOUR
Materias:
Andes
Broken-foreland
Neogene
Petrofacies
Sedimentary petrology
basin evolution
conglomerate
depositional sequence
detrital deposit
foreland basin
lithostratigraphy
provenance
sandstone
sedimentary petrology
Argentina
Cordillera Frontal
Precordillera
Sierras Pampeanas
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_08959811_v49_n_p15_Ciccioli
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_08959811_v49_n_p15_Ciccioli2023-10-03T15:43:11Z Petrology and provenance of the Toro Negro Formation (Neogene) of the Vinchina broken-foreland basin (Central Andes of Argentina) Ciccioli, P.L. Marenssi, S.A. Limarino, C.O. Andes Broken-foreland Neogene Petrofacies Sedimentary petrology basin evolution conglomerate depositional sequence detrital deposit foreland basin lithostratigraphy Neogene provenance sandstone sedimentary petrology Andes Argentina Cordillera Frontal Precordillera Sierras Pampeanas Detrital modes of sandstones and conglomerates of the Toro Negro Formation (Late Miocene-early Pliocene) were used to analyze the evolution of the broken-foreland stage of the Vinchina Basin (28°30'-29°00' S and 68°30'-68°20' W) of NW Argentina. This basin located in the Western Sierras Pampeanas is bounded to the west by the Precordillera and to the east by the Famatina System. Three sandstone petrofacies: plutonic-metamorphic, volcanic and mixed petrofacies and three conglomerate lithic associations: basement, sedimentary and volcanic lithic associations were recognized, allowing to establish three source areas: Western Sierras Pampeanas (Toro Negro and Umango Ranges), Cordillera Frontal and Precordillera.During the Late Miocene, the Toro Negro Range (to the north) together with the Cordillera Frontal and Precordillera (to the west) were the main sources for depositional sequences I and II (lower member of the Toro Negro Formation). On the contrary, during the latest Miocene-early Pliocene, Depositional Sequence III (upper member) exhibited a progressive increase in the supply from the eastern Precordillera (to the west) with additional material from the Umango Range to the south. Besides, evidence of synchronic volcanism is recorded in the upper part of Depositional Sequence II and the lower part of Depositional Sequence III.The coexistence of the three source areas and the changing distribution patterns due to re-accommodation of sediment dispersal routes demonstrate that the evolution of this type of basin is much more complex than previously envisaged. Therefore, an integrated analysis using different tools (sedimentary facies, paleocurrent measurements, sandstone petrography and conglomerate composition) is needed for a clearer understanding of broken-foreland basins. © 2013 Elsevier Ltd. Fil:Ciccioli, P.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Marenssi, S.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Limarino, C.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_08959811_v49_n_p15_Ciccioli
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Andes
Broken-foreland
Neogene
Petrofacies
Sedimentary petrology
basin evolution
conglomerate
depositional sequence
detrital deposit
foreland basin
lithostratigraphy
Neogene
provenance
sandstone
sedimentary petrology
Andes
Argentina
Cordillera Frontal
Precordillera
Sierras Pampeanas
spellingShingle Andes
Broken-foreland
Neogene
Petrofacies
Sedimentary petrology
basin evolution
conglomerate
depositional sequence
detrital deposit
foreland basin
lithostratigraphy
Neogene
provenance
sandstone
sedimentary petrology
Andes
Argentina
Cordillera Frontal
Precordillera
Sierras Pampeanas
Ciccioli, P.L.
Marenssi, S.A.
Limarino, C.O.
Petrology and provenance of the Toro Negro Formation (Neogene) of the Vinchina broken-foreland basin (Central Andes of Argentina)
topic_facet Andes
Broken-foreland
Neogene
Petrofacies
Sedimentary petrology
basin evolution
conglomerate
depositional sequence
detrital deposit
foreland basin
lithostratigraphy
Neogene
provenance
sandstone
sedimentary petrology
Andes
Argentina
Cordillera Frontal
Precordillera
Sierras Pampeanas
description Detrital modes of sandstones and conglomerates of the Toro Negro Formation (Late Miocene-early Pliocene) were used to analyze the evolution of the broken-foreland stage of the Vinchina Basin (28°30'-29°00' S and 68°30'-68°20' W) of NW Argentina. This basin located in the Western Sierras Pampeanas is bounded to the west by the Precordillera and to the east by the Famatina System. Three sandstone petrofacies: plutonic-metamorphic, volcanic and mixed petrofacies and three conglomerate lithic associations: basement, sedimentary and volcanic lithic associations were recognized, allowing to establish three source areas: Western Sierras Pampeanas (Toro Negro and Umango Ranges), Cordillera Frontal and Precordillera.During the Late Miocene, the Toro Negro Range (to the north) together with the Cordillera Frontal and Precordillera (to the west) were the main sources for depositional sequences I and II (lower member of the Toro Negro Formation). On the contrary, during the latest Miocene-early Pliocene, Depositional Sequence III (upper member) exhibited a progressive increase in the supply from the eastern Precordillera (to the west) with additional material from the Umango Range to the south. Besides, evidence of synchronic volcanism is recorded in the upper part of Depositional Sequence II and the lower part of Depositional Sequence III.The coexistence of the three source areas and the changing distribution patterns due to re-accommodation of sediment dispersal routes demonstrate that the evolution of this type of basin is much more complex than previously envisaged. Therefore, an integrated analysis using different tools (sedimentary facies, paleocurrent measurements, sandstone petrography and conglomerate composition) is needed for a clearer understanding of broken-foreland basins. © 2013 Elsevier Ltd.
format JOUR
author Ciccioli, P.L.
Marenssi, S.A.
Limarino, C.O.
author_facet Ciccioli, P.L.
Marenssi, S.A.
Limarino, C.O.
author_sort Ciccioli, P.L.
title Petrology and provenance of the Toro Negro Formation (Neogene) of the Vinchina broken-foreland basin (Central Andes of Argentina)
title_short Petrology and provenance of the Toro Negro Formation (Neogene) of the Vinchina broken-foreland basin (Central Andes of Argentina)
title_full Petrology and provenance of the Toro Negro Formation (Neogene) of the Vinchina broken-foreland basin (Central Andes of Argentina)
title_fullStr Petrology and provenance of the Toro Negro Formation (Neogene) of the Vinchina broken-foreland basin (Central Andes of Argentina)
title_full_unstemmed Petrology and provenance of the Toro Negro Formation (Neogene) of the Vinchina broken-foreland basin (Central Andes of Argentina)
title_sort petrology and provenance of the toro negro formation (neogene) of the vinchina broken-foreland basin (central andes of argentina)
url http://hdl.handle.net/20.500.12110/paper_08959811_v49_n_p15_Ciccioli
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AT marenssisa petrologyandprovenanceofthetoronegroformationneogeneofthevinchinabrokenforelandbasincentralandesofargentina
AT limarinoco petrologyandprovenanceofthetoronegroformationneogeneofthevinchinabrokenforelandbasincentralandesofargentina
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