Artículo
Marenssi, S.A.; Net, L.I.; Caselli, A.T.; Tripaldi, A.; Limarino, O. "Discovery and interpretation of internal unconformities within the Vinchina Formation (Neogene), La Troya creek, La Rioja, Argentina " (2000) Revista de la Asociacion Geologica Argentina. 55(4):414-418
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Abstract:
Two low-angle erosive surfaces (D1 and D2) associated with lithofacies changes and a petrographical break were identified in the middle part of the Neogene Vinchina Formation at its type locality. These surfaces bound three intervals here named P1, P2 and P3. The oldest (P1) rocks, composed of quartz-rich lithic feldsarenites (with Lm/Lv=0.5), were deposited by anastomosing rivers. These rocks were tilted by 9° to the SW and erosional D1 was formed before deposition of P2 strata. The middle interval (P2) consists of lithic feldsarenites (Lm/Lv=0.2) deposited by gravelly braided rivers. The whole sequence was tilted 4° to the NE and developing D2 unconformity before deposition of P3 strata. The younger interval (P3) comprises quartz-poor feldspathic litharenites (with Lm/Lv=0.2) originated in sandy braided rivers. Finally, the entire Vinchina Formation was tilted 56° to the NW. Synsedimentary tectonic activity is strongly suggested by the geometric relationships and petrographic changes observed among P1, P2 and P3 intervals.
Registro:
| Documento: | Artículo |
| Título: | Discovery and interpretation of internal unconformities within the Vinchina Formation (Neogene), La Troya creek, La Rioja, Argentina |
| Autor: | Marenssi, S.A.; Net, L.I.; Caselli, A.T.; Tripaldi, A.; Limarino, O. |
| Filiación: | Dpto. Ciencias Geol., Facultad Ciencias Exactas Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina |
| Palabras clave: | Foreland basin; Internal unconformities; La Rioja; Neogene; foreland basin; Neogene; sedimentation; synsedimentary tectonics; unconformity; Argentina |
| Año: | 2000 |
| Volumen: | 55 |
| Número: | 4 |
| Página de inicio: | 414 |
| Página de fin: | 418 |
| Título revista: | Revista de la Asociacion Geologica Argentina |
| Título revista abreviado: | Rev. Asoc. Geol. Argent. |
| ISSN: | 00044822 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v55_n4_p414_Marenssi |
Referencias:
- Dickinson, W.R., Beard, L.S., Brakenridge, G.R., Rejavec, J.L., Ferguson, R.C., Inman, K.F., Kneep, F.A., Ryberg, P.T., Provenance of North American Phanerozoic sandstones in relation to tectonic setting (1983) Geological Society of America, Bulletin, 94, pp. 222-235
- Folk, R.L., Andrews, P.B., Lewis, D.W., Detrital sedimentary rock classification and nomenclature for use in New Zealand (1970) New Zealand Journal of Geology and Geophysics, 13, pp. 937-968
- Jordan, T.E., Retroarc foreland and related basins (1995) Tectonics of Sedimentary Basins, pp. 331-362. , Busby C.J., Ingersoll R.V. (Eds.): Blackwell Science, Cambridge
- Limarino, C., Tripaldi, A., Caselli, A., Marenssi, S., Re, G., Net, L., Facies, paleoambientes depositacionales y edad de la Formación Vinchina (1999) Actas 14° Congreso Geológico Argentino, 1, p. 65. , Neógeno, Provincia de La Rioja. Salta
- Limarino, C., Tripaldi, A., Marenssi, S., Net, L., Re, G., Caselli, A., Tectonic control on the evolution of the fluvial systems of the Vinchina formation (Miocene), northwestern Argentina (2000) The Sedimentary and Tectonic Evolution of Cenozoic Andean Foreland Basins. Journal of South American Earth Sciences, , González Bonorino G., Kraemer P., Re. G.,(Eds.): Special Volume. En prensa
- Ramos, V.A., Estratigrafía y estructura del Terciario en la Sierra de Los Colorados (Provincia de La Rioja), República Argentina (1970) Revista De La Asociación Geológica Argentina, 25 (3), pp. 359-382. , Buenos Aires
- Turner, J.C.M., Descripción Geológica de la Hoja 15c. Vinchina (Provincia de La Rioja) (1964) Dirección Nacional De Geología Y Minería, p. 81. , Buenos Aires
- Zuffa, G.G., Optical analyses of arenites: Influence of metodology on compositional results (1985) Provenance of Arenites. NATO Advanced Studies Institute, Series C: Mathematical and Physical Sciences, 148, pp. 165-189. , (Ed.) D. Reidel Publishing Company, Boston
Citas:
---------- APA ----------
Marenssi, S.A., Net, L.I., Caselli, A.T., Tripaldi, A. & Limarino, O. (2000) . Discovery and interpretation of internal unconformities within the Vinchina Formation (Neogene), La Troya creek, La Rioja, Argentina . Revista de la Asociacion Geologica Argentina, 55(4), 414-418.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v55_n4_p414_Marenssi [ ]
---------- CHICAGO ----------
Marenssi, S.A., Net, L.I., Caselli, A.T., Tripaldi, A., Limarino, O. "Discovery and interpretation of internal unconformities within the Vinchina Formation (Neogene), La Troya creek, La Rioja, Argentina " . Revista de la Asociacion Geologica Argentina 55, no. 4 (2000) : 414-418.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v55_n4_p414_Marenssi [ ]
---------- MLA ----------
Marenssi, S.A., Net, L.I., Caselli, A.T., Tripaldi, A., Limarino, O. "Discovery and interpretation of internal unconformities within the Vinchina Formation (Neogene), La Troya creek, La Rioja, Argentina " . Revista de la Asociacion Geologica Argentina, vol. 55, no. 4, 2000, pp. 414-418.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v55_n4_p414_Marenssi [ ]
---------- VANCOUVER ----------
Marenssi, S.A., Net, L.I., Caselli, A.T., Tripaldi, A., Limarino, O. Discovery and interpretation of internal unconformities within the Vinchina Formation (Neogene), La Troya creek, La Rioja, Argentina . Rev. Asoc. Geol. Argent. 2000;55(4):414-418.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v55_n4_p414_Marenssi [ ]
