Artículo
Strelin, J.; Malagnino, E. "Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley " (2009) Revista de la Asociacion Geologica Argentina. 64(1):101-108
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Abstract:
Although the depositational environment assigned by Darwin to the large erratic blocks and gravels in the Río Santa Cruz valley has been reinterpreted, his geomorphological and stratigraphic observations are still in force. The large erratic blocks he described as crowning the Condor Cliff terrace and spread at the bottom of the valley just east of this locality (Sites 2 and 3), are now interpreted as indicators of the maximum glacial expansion in Patagonia. Similar blocks, though of a different lithology, accumulated over a lower terrace located up-valley (Site 4), are now linked to moraines and glacifluvial terraces of the Penultimate Glaciation. Finally, in addition to the erratic block discovered by Darwin in the lower Río Santa Cruz valley (Site 1), there are others - recently discovered - which probably account for a catastrophic event ascribed to a big glacier-lake outburst during the last interglacial.
Registro:
| Documento: | Artículo |
| Título: | Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley |
| Autor: | Strelin, J.; Malagnino, E. |
| Filiación: | Instituto Antartico Argentino, Universidad Nacional de Cordoba, Departamento de Geologia Basica, Facultad de Ciencias Exactas Fisicas y Naturales, Universidad Nacional de Córdoba, Argentina Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina |
| Palabras clave: | Darwin; Erratic blocks; Glaciations; Moraines; Patagonia; depositional environment; geomorphology; glaciation; glaciofluvial deposit; Last Interglacial; moraine; outburst; stratigraphy; Patagonia; South America |
| Año: | 2009 |
| Volumen: | 64 |
| Número: | 1 |
| Página de inicio: | 101 |
| Página de fin: | 108 |
| 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_v64_n1_p101_Strelin.pdf |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v64_n1_p101_Strelin |
Referencias:
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- Darwin, C., On the distribution of erratic boulders and on the contemporaneous uns- tratified deposits of South America (1842) Transac- tions Geological Society London, 6, pp. 415-431
- Darwin, C., Geological Observations on The Volcanic Island, visited during the Voy- age of H. M. S. Beagle (1844) The Geology of the Voyage of the Beagle, (PART. 2), p. 172. , Smith Elder and Co, London
- Darwin, C., Geological observations on South America. Being the third part of the geology of the voyage of the Beagle, under the command of Capt (1846) Fitzroy, R.N. during the years 1832 to 1836, p. 280. , Smith Elder and Co, London
- Feruglio, E., Descripción Geológica de la Patagonia (1950) Yacimientos Petroliferos Fiscales, 3, p. 431. , Buenos Aires
- von Hoff, K.E.A., (1834) Geschichte der durch Ueberlieferung nachgewiesenen natürlichen Veränderungen der Erdoberfläche, p. 2086. , 1-4, Perthes, Gotha
- Lyell, C., (1830) Principles of Geology, 1, p. 511. , John Murray, Albemarle-Street, (1830), London
- Lyell, C., (1830) Principles of Geology, 2, p. 330. , John Murray, Albemarle-Street, (1832), London
- Lyell, C., (1830) Principles of Geology, 3, p. 109. , John Murray, Albemarle-Street, (1833), London
- Lyell, C., On the Boulder Formation, or drift and associated freshwater deposits com- posing the mud-cliffs of Eastern Norfolk (1840) The London and Edinburgh Philosophical Magazine and Journal of Science, Third Series, 16 (104), pp. 345-380
- Malagnino, E.C., The discovery of the old- est extra-Andean glaciation in the Lago Bue- nos Aires Basin, Argentina (1995) Quaternary of South America and Antartic Peninsula, 9, pp. 69-83. , A.A. Balkema
- Mercer, J.H., Fleck, R.J., Mankinen, E.A., Sander, W., Southern Patagonia: Glacial Events Between 4 m.y. and 1 m.y. Ago (1975) Quaternary Studies, The Royal Society of New Zealand, pp. 223-230. , In Suggate, R.P. and Creswell, M.M. (eds.), Wellington
- Strelin, J.A., New evidences on the relationships between the oldest estra-andean glaciations in the the Santa Cruz River area (1995) Quaternary of South America and Antarctic Peninsula, 9, pp. 105-116. , A.A. Balkema, Rotterdam
- Strelin, J.A., Malagnino, E.C., Glaciaciones Pleistocenas del Lago Argentino y Alto Valle del Río Santa Cruz (1996) 13° Congreso Geo- lógico Argentino, Actas, 4, pp. 311-326
- Strelin, J., Re, G., Keller, R., Malagnino, E., New evidences concerning the Plio- Pleistocene landscape evolution of southern Santa Cruz region (1999) Journal of South American Earth Sciences, 12, pp. 333-341
Citas:
---------- APA ----------
Strelin, J. & Malagnino, E. (2009) . Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley . Revista de la Asociacion Geologica Argentina, 64(1), 101-108.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v64_n1_p101_Strelin [ ]
---------- CHICAGO ----------
Strelin, J., Malagnino, E. "Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley " . Revista de la Asociacion Geologica Argentina 64, no. 1 (2009) : 101-108.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v64_n1_p101_Strelin [ ]
---------- MLA ----------
Strelin, J., Malagnino, E. "Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley " . Revista de la Asociacion Geologica Argentina, vol. 64, no. 1, 2009, pp. 101-108.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v64_n1_p101_Strelin [ ]
---------- VANCOUVER ----------
Strelin, J., Malagnino, E. Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley . Rev. Asoc. Geol. Argent. 2009;64(1):101-108.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v64_n1_p101_Strelin [ ]
