Artículo
Sellés-Martínez, J.; Azcurra, D. "Lower Paleozoic microestructures in the headwaters of Río Jachal, San Juan Province: Their description and interpretation " (2010) Revista de la Asociacion Geologica Argentina. 66(1-2):94-101
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Abstract:
Group of microstructures present in the Ordovician Yerba Loca and Los Sombreros Formations (cropping out in the vicinity of Road 150, between cuesta del Viento and Los Túneles), are described and interpreted. Cleavage, joints and fractures, shear zones, planar and sigmoid (en echelon) veins and kink bands are most common among them. Folded and domino faulted quartz veins, resulting from pressure solution contraction during formation of axial plane cleavage, are an outstanding feature and allowed calculation of contraction associated to cleavage development. The assemblage of minor structures shows coherency with the major structures hosting them and evidences a systematic displacement and stacking of rock masses from west to east. They also show the important participation of pressure solution and re-crystallization processes during deformation, along with progressive deformation due to rotation of local structures in the regional stress field.
Registro:
| Documento: | Artículo |
| Título: | Lower Paleozoic microestructures in the headwaters of Río Jachal, San Juan Province: Their description and interpretation |
| Autor: | Sellés-Martínez, J.; Azcurra, D. |
| Filiación: | Depto. de Ciencias Geológicas, FCEyN, UBA, Pabellón 2-Ciudad Universitaria, 1428-Autónoma, Buenos Aires, Argentina SEGEMAR, Universidad de Buenos Aires, Buenos Aires, Argentina |
| Palabras clave: | Jáchal River; Minor structures; Palaeozoic; Precordillera; Yerba Loca Formation; deformation; displacement; geological structure; headwater; microstructure; Ordovician; Paleozoic; recrystallization; shear zone; stress field; Argentina; Jachal River; San Juan [Argentina]; Croton ovalifolius |
| Año: | 2010 |
| Volumen: | 66 |
| Número: | 1-2 |
| Página de inicio: | 94 |
| Página de fin: | 101 |
| Título revista: | Revista de la Asociacion Geologica Argentina |
| Título revista abreviado: | Rev. Asoc. Geol. Argent. |
| ISSN: | 00044822 |
| PDF: | https://bibliotecadigital.exactas.uba.ar/download/paper/paper_00044822_v66_n1-2_p94_SellesMartinez.pdf |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v66_n1-2_p94_SellesMartinez |
Referencias:
- Álvarez-Marrón, J., Rodríguez-Fernández, R., Heredia, N., Busquets, P., Colombo, F., Brown, D., Neogene structures overprinting Paleozoic thrust systems in the Andean Precordillera at 30o S latitude (2006) Journal of the Geological Society, 163, pp. 1-16. , London
- Sellés-Martínez, J., Graphic methods for the reconstruction of the strain ellipse from distorted regular polygons (1986) Tectonophysics, 3, pp. 393-396
- Sellés-Martínez, J., Caselli, J.A., Mena, M., Cizallamiento dúctil sobreimpuesto al clivaje de crenulación diferenciado en sedimentitas ordovícicas del área de Rodeo (Provincia de San Juan) (1988) 5o Reunión de Microtectónica (Córdoba), Actas, pp. 80-83
- Sellés-Martínez, J., (1995) What do kink bands mean? Second International Conference on Mechanics of Faulted and Jointed Rocks (Wien, Austria), pp. 311-315. , Proceedings
- Sellés-Martínez, J., Azcurra, D., Estructura menores del Paleozico inferior de las nacientes del Río Jachal, Provincia de San Juan: Su descripción e interpretación (2010) Revista de la Asociación Geológica Argentina, 66 (1-2), pp. 80-93
- von Gossen, W., Early Paleozoic and Andean structural evolution in the Río Jáchal section of the Argentine Precordillera (1997) Journal of South American Earth Sciences, 10, pp. 361-388
Citas:
---------- APA ----------
Sellés-Martínez, J. & Azcurra, D. (2010) . Lower Paleozoic microestructures in the headwaters of Río Jachal, San Juan Province: Their description and interpretation . Revista de la Asociacion Geologica Argentina, 66(1-2), 94-101.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v66_n1-2_p94_SellesMartinez [ ]
---------- CHICAGO ----------
Sellés-Martínez, J., Azcurra, D. "Lower Paleozoic microestructures in the headwaters of Río Jachal, San Juan Province: Their description and interpretation " . Revista de la Asociacion Geologica Argentina 66, no. 1-2 (2010) : 94-101.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v66_n1-2_p94_SellesMartinez [ ]
---------- MLA ----------
Sellés-Martínez, J., Azcurra, D. "Lower Paleozoic microestructures in the headwaters of Río Jachal, San Juan Province: Their description and interpretation " . Revista de la Asociacion Geologica Argentina, vol. 66, no. 1-2, 2010, pp. 94-101.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v66_n1-2_p94_SellesMartinez [ ]
---------- VANCOUVER ----------
Sellés-Martínez, J., Azcurra, D. Lower Paleozoic microestructures in the headwaters of Río Jachal, San Juan Province: Their description and interpretation . Rev. Asoc. Geol. Argent. 2010;66(1-2):94-101.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v66_n1-2_p94_SellesMartinez [ ]
