Applying sandstone petrofacies to unravel the Upper Carboniferous evolution of the Paganzo Basin, northwest Argentina
A compositional study of sandstones belonging to the lower section of the Paganzo Group (Middle Carboniferous-Early Permian) in the Paganzo Basin (northwestern Argentina) helps unravel the stratigraphic and paleogeographic evolution of the basin. Three morphotectonic units constitute the complex bas...
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2006
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08959811_v22_n3-4_p239_Net http://hdl.handle.net/20.500.12110/paper_08959811_v22_n3-4_p239_Net |
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paper:paper_08959811_v22_n3-4_p239_Net2023-06-08T15:48:19Z Applying sandstone petrofacies to unravel the Upper Carboniferous evolution of the Paganzo Basin, northwest Argentina Carboniferous Paganzo Basin Petrofacies Petrosomes Provenance Carboniferous facies analysis morphogenesis paleogeography petrogenesis provenance sandstone sequence stratigraphy tectonic evolution Argentina Paganzo Basin South America A compositional study of sandstones belonging to the lower section of the Paganzo Group (Middle Carboniferous-Early Permian) in the Paganzo Basin (northwestern Argentina) helps unravel the stratigraphic and paleogeographic evolution of the basin. Three morphotectonic units constitute the complex basement of the basin: (1) to the east, the igneous-metamorphic basement of the Sierras Pampeanas and Famatina systems; (2) to the west, the Precordillera, made up of Early and Middle Paleozoic sedimentary rocks; and (3) the Upper Paleozoic volcanic arc along the western boundary with the Río Blanco Basin. On the basis of sandstone detrital modes of the Lagares, Malanzán, Loma Larga, Guandacol, Tupe, Punta del Agua, and Río del Peñón formations, seven petrofacies are distinguished: quartzofeldespathic (QF), quartzofeldespathic-metamorphic enriched (QF-Lm), quartzofeldespathic-sedimentary enriched (QF-Ls), mixed quartzolithic (QL), quartzolithic-volcanic (QLv), volcanolithic-quartzose (LvQ), and volcanolithic (Lv). The spatial and temporal distribution of these petrofacies suggest an evolutive model for the Upper Paleozoic sedimentary filling of the basin that includes three "petrosomes": (1) the basement petrosome, a clastic wedge of arkosic composition that diachronically prograded and thinned from east to west; (2) the recycled orogen petrosome, revealing the Protoprecordillera as a positive element in the western Paganzo Basin during the Namurian; and (3) the volcanic arc petrosome, recording volcanic activity along the western margin of Gondwana during the Westphalian. © 2006 Elsevier Ltd. All rights reserved. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08959811_v22_n3-4_p239_Net http://hdl.handle.net/20.500.12110/paper_08959811_v22_n3-4_p239_Net |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Carboniferous Paganzo Basin Petrofacies Petrosomes Provenance Carboniferous facies analysis morphogenesis paleogeography petrogenesis provenance sandstone sequence stratigraphy tectonic evolution Argentina Paganzo Basin South America |
| spellingShingle |
Carboniferous Paganzo Basin Petrofacies Petrosomes Provenance Carboniferous facies analysis morphogenesis paleogeography petrogenesis provenance sandstone sequence stratigraphy tectonic evolution Argentina Paganzo Basin South America Applying sandstone petrofacies to unravel the Upper Carboniferous evolution of the Paganzo Basin, northwest Argentina |
| topic_facet |
Carboniferous Paganzo Basin Petrofacies Petrosomes Provenance Carboniferous facies analysis morphogenesis paleogeography petrogenesis provenance sandstone sequence stratigraphy tectonic evolution Argentina Paganzo Basin South America |
| description |
A compositional study of sandstones belonging to the lower section of the Paganzo Group (Middle Carboniferous-Early Permian) in the Paganzo Basin (northwestern Argentina) helps unravel the stratigraphic and paleogeographic evolution of the basin. Three morphotectonic units constitute the complex basement of the basin: (1) to the east, the igneous-metamorphic basement of the Sierras Pampeanas and Famatina systems; (2) to the west, the Precordillera, made up of Early and Middle Paleozoic sedimentary rocks; and (3) the Upper Paleozoic volcanic arc along the western boundary with the Río Blanco Basin. On the basis of sandstone detrital modes of the Lagares, Malanzán, Loma Larga, Guandacol, Tupe, Punta del Agua, and Río del Peñón formations, seven petrofacies are distinguished: quartzofeldespathic (QF), quartzofeldespathic-metamorphic enriched (QF-Lm), quartzofeldespathic-sedimentary enriched (QF-Ls), mixed quartzolithic (QL), quartzolithic-volcanic (QLv), volcanolithic-quartzose (LvQ), and volcanolithic (Lv). The spatial and temporal distribution of these petrofacies suggest an evolutive model for the Upper Paleozoic sedimentary filling of the basin that includes three "petrosomes": (1) the basement petrosome, a clastic wedge of arkosic composition that diachronically prograded and thinned from east to west; (2) the recycled orogen petrosome, revealing the Protoprecordillera as a positive element in the western Paganzo Basin during the Namurian; and (3) the volcanic arc petrosome, recording volcanic activity along the western margin of Gondwana during the Westphalian. © 2006 Elsevier Ltd. All rights reserved. |
| title |
Applying sandstone petrofacies to unravel the Upper Carboniferous evolution of the Paganzo Basin, northwest Argentina |
| title_short |
Applying sandstone petrofacies to unravel the Upper Carboniferous evolution of the Paganzo Basin, northwest Argentina |
| title_full |
Applying sandstone petrofacies to unravel the Upper Carboniferous evolution of the Paganzo Basin, northwest Argentina |
| title_fullStr |
Applying sandstone petrofacies to unravel the Upper Carboniferous evolution of the Paganzo Basin, northwest Argentina |
| title_full_unstemmed |
Applying sandstone petrofacies to unravel the Upper Carboniferous evolution of the Paganzo Basin, northwest Argentina |
| title_sort |
applying sandstone petrofacies to unravel the upper carboniferous evolution of the paganzo basin, northwest argentina |
| publishDate |
2006 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08959811_v22_n3-4_p239_Net http://hdl.handle.net/20.500.12110/paper_08959811_v22_n3-4_p239_Net |
| _version_ |
1768542698231300096 |