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Genre/Form: | Thèses et écrits académiques |
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Material Type: | Document, Thesis/dissertation |
Document Type: | Computer File |
All Authors / Contributors: |
Anthony Houbart; Christian Giusti; Marc Calvet; Yanni Gunnell; Jean-Pierre Peulvast; Vincent Regard; Université Paris-Sorbonne (1970-2017).; École doctorale de Géographie de Paris. Espace, sociétés, aménagement (Paris).; Laboratoire de géographie physique (Meudon, Hauts-de-Seine).; Laboratoire Espaces, nature et culture (Paris). |
OCLC Number: | 901205471 |
Notes: | Titre provenant de l'écran-titre. |
Description: | 1 online resource |
Responsibility: | Anthony Houbart ; sous la direction de Christian Giusti. |
Abstract:
Norte Chico is a buffer zone having registered Quaternary climatic fluctuations. The preservation of landforms and relief present in the Elqui cordillera, make it a rich geomorphological study area, which may provide answers to many of the assumptions Quaternary calendar climate of the region. Freshness and modeled forms present in the high Andes of Elqui, coupled with the presence of datable organic matter, will allow us to to explain the timing of implementation of the elements of relief. Field indices surveys allow us to highlight a series of processes involving the notion of relay and buffer zones in the sediment transport. Morphogenic crises originally training slope and valley floor currently visible result of a more or less direct answer of the Andean orogen to climatic events, so the results are compared with the results of other studies and in sites close or not our place of study to provide examples and arguments to current hypotheses on the evolution of the Quaternary climatic Norte Chico and multiscale way. The complexity of the implementation of the relief units, requires firstly an explanation of the different orogenic phases and developments morphoclimatic leading to the gradual development of current conditions. Second, the methodology necessary fieldwork and consistent results is defined and explained. A final section presents the synthesis of the series of training implementation valley bottom; the results of this study are also viewed in a broader scientific debate to apprehend the potential provided by the geomorphology in the Quaternary paleoenvironmental study of the Norte Chico as globally.
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