Deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes
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 a...
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todo:paper_00044822_v72_n4_p482_Colavitto2023-10-03T13:59:10Z Deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes Colavitto, B. Gianni, G.M. Tobal, J.E. Folguera, A. Glaciotectonism Ice flux Last glacial maximum Quaternary deformation glacier dynamics glacioisostasy glaciotectonics Last Glacial Maximum outcrop sediment analysis Patagonia 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. Fil:Gianni, G.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tobal, J.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Folguera, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00044822_v72_n4_p482_Colavitto |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Glaciotectonism Ice flux Last glacial maximum Quaternary deformation glacier dynamics glacioisostasy glaciotectonics Last Glacial Maximum outcrop sediment analysis Patagonia |
spellingShingle |
Glaciotectonism Ice flux Last glacial maximum Quaternary deformation glacier dynamics glacioisostasy glaciotectonics Last Glacial Maximum outcrop sediment analysis Patagonia Colavitto, B. Gianni, G.M. Tobal, J.E. Folguera, A. Deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes |
topic_facet |
Glaciotectonism Ice flux Last glacial maximum Quaternary deformation glacier dynamics glacioisostasy glaciotectonics Last Glacial Maximum outcrop sediment analysis Patagonia |
description |
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. |
format |
JOUR |
author |
Colavitto, B. Gianni, G.M. Tobal, J.E. Folguera, A. |
author_facet |
Colavitto, B. Gianni, G.M. Tobal, J.E. Folguera, A. |
author_sort |
Colavitto, B. |
title |
Deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes |
title_short |
Deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes |
title_full |
Deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes |
title_fullStr |
Deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes |
title_full_unstemmed |
Deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes |
title_sort |
deformation evidences on the glacier sediments from the northernmost el bolsón valley, northpatagonian andes |
url |
http://hdl.handle.net/20.500.12110/paper_00044822_v72_n4_p482_Colavitto |
work_keys_str_mv |
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1782029827387162624 |