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Abstract:

The infinite Patagonian steppe, its fluvial network and patterns of fiords and lakes is full of amazing uniqueness, their mere existence and beauty wake up our need of discovering their natural causes. This task requires to have been lost in the neverending Patagonia, to hold all of its infinite details and contrasts and finally connect all the pieces of the puzzle together not leaving one bit behind, that was one of Pablo Groeber’s achievements. A capricious terrain characterize Patagonia, where some of the mountain valleys are below the level of extra-Andean Mesetas, and the northern lakes located in the eastern foothills drain towards the Pacific Ocean. The Southernmost Andes are affected by strong glacial erosion and traverse by the Magellan Strait and the Beagle Channel, allowing to navigate connecting both the Atlantic and Pacific oceans. The Andean rivers of Patagonia have to dodge the Somoncurá and Deseado massifs along the “codo del río Senguer”, a morphic feature inherited from Gondwana times, and shaped during the late Cenozoic. This history was evident for Groeber, who expressed the importance of rivers and glacial carving the Cordillera, a discussion that still is motive of debate, almost 100 years later. © 2017, Asociacion Geologica Argentina. All rights reserved.

Registro:

Documento: Artículo
Título:The origin of valleys crossing patagonia and their relation with cordilleran uplift
Autor:Ghiglione, M.C.
Filiación:Instituto de Estudios Andinos “Don Pablo Groeber” CONICET, Departamento de Ciencias Geológicas, FCEN - Universidad de Buenos Aires, Argentina
Palabras clave:Antecedent rivers; Argentine shelf; Atlantic ocean; Magellan strait; Pablo groeber; Patagonia; Cenozoic; cordillera; glacial erosion; Gondwana; mountain region; terrain; uplift; valley; Atlantic Ocean; Beagle Channel; Magellan Strait; Patagonia
Año:2017
Volumen:74
Número:1
Página de inicio:102
Página de fin:108
Título revista:Revista de la Asociacion Geologica Argentina
Título revista abreviado:Rev. Asoc. Geol. Argent.
ISSN:00044822
Registro:http://digital.bl.fcen.uba.ar/collection/paper/document/paper_00044822_v74_n1_p102_Ghiglione

Referencias:

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Citas:

---------- APA ----------
(2017) . The origin of valleys crossing patagonia and their relation with cordilleran uplift . Revista de la Asociacion Geologica Argentina, 74(1), 102-108.
Recuperado de http://digital.bl.fcen.uba.ar/collection/paper/document/paper_00044822_v74_n1_p102_Ghiglione [ ]
---------- CHICAGO ----------
Ghiglione, M.C. "The origin of valleys crossing patagonia and their relation with cordilleran uplift " . Revista de la Asociacion Geologica Argentina 74, no. 1 (2017) : 102-108.
Recuperado de http://digital.bl.fcen.uba.ar/collection/paper/document/paper_00044822_v74_n1_p102_Ghiglione [ ]
---------- MLA ----------
Ghiglione, M.C. "The origin of valleys crossing patagonia and their relation with cordilleran uplift " . Revista de la Asociacion Geologica Argentina, vol. 74, no. 1, 2017, pp. 102-108.
Recuperado de http://digital.bl.fcen.uba.ar/collection/paper/document/paper_00044822_v74_n1_p102_Ghiglione [ ]
---------- VANCOUVER ----------
Ghiglione, M.C. The origin of valleys crossing patagonia and their relation with cordilleran uplift . Rev. Asoc. Geol. Argent. 2017;74(1):102-108.
Available from: http://digital.bl.fcen.uba.ar/collection/paper/document/paper_00044822_v74_n1_p102_Ghiglione [ ]