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Abstract:

On the northeast face of Cerro Negro, in the northern extreme of the El Bolsón valley in the Patagonian Cordillera of Río Negro, a road cut left an outcrop of around 400-meters length of glacigenic deposits. In thislocation, some deformational features were observed, whose description and analysis are objects of this work. Through the development of a series of sedimentary sections and profiles, the observed structures were interpreted as glaciotectonic in origin, resulting from the stresses applied from the movement of glaciers. However, still remain further research to be done in order to discard their potential connection with neotectonic processes. The folding direction indicates an advance from north to south, providing useful information on the study of ice flow direction in this Andean region during the Last Glacial Maximum. Moreover, two glacial advances were recognized, the first one having probably no geomorphological expression as it was overthrusted by a latter glacial advance. © 2015, Asociacion Geologica Argentina. All Rights Reserved.

Registro:

Documento: Artículo
Título:Deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes
Autor:Colavitto, B.; Gianni, G.M.; Tobal, J.E.; Folguera, A.
Filiación:Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
Palabras clave:Glaciotectonism; Ice flux; Last glacial maximum; Quaternary; deformation; glacier dynamics; glacioisostasy; glaciotectonics; Last Glacial Maximum; outcrop; sediment analysis; Patagonia
Año:2015
Volumen:72
Número:4
Página de inicio:482
Página de fin:494
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_v72_n4_p482_Colavitto

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Citas:

---------- APA ----------
Colavitto, B., Gianni, G.M., Tobal, J.E. & Folguera, A. (2015) . Deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes . Revista de la Asociacion Geologica Argentina, 72(4), 482-494.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v72_n4_p482_Colavitto [ ]
---------- CHICAGO ----------
Colavitto, B., Gianni, G.M., Tobal, J.E., Folguera, A. "Deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes " . Revista de la Asociacion Geologica Argentina 72, no. 4 (2015) : 482-494.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v72_n4_p482_Colavitto [ ]
---------- MLA ----------
Colavitto, B., Gianni, G.M., Tobal, J.E., Folguera, A. "Deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes " . Revista de la Asociacion Geologica Argentina, vol. 72, no. 4, 2015, pp. 482-494.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v72_n4_p482_Colavitto [ ]
---------- VANCOUVER ----------
Colavitto, B., Gianni, G.M., Tobal, J.E., Folguera, A. Deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes . Rev. Asoc. Geol. Argent. 2015;72(4):482-494.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v72_n4_p482_Colavitto [ ]