Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501221
Title: An experimental investigation to quantify the role of internal process-form interactions and flow width adjustment during alluvial fan evolution
Author: Clarke, Lucy Elizabeth
Awarding Body: University of Exeter
Current Institution: University of Exeter
Date of Award: 2008
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Abstract:
Alluvial fans represent small-scale coupled transport/depositional systems that provide the opportunity to undertake detailed studies of non-equilibrium landform behaviour. Previous interpretation of fans in the field has tended to emphasize the importance of external controls on their evolution (climate, tectonics and base-level change). Recent investigations, however, have shown that internal process-driven feedbacks may be equally important. This thesis presents results from a series of laboratory experiments designed to quantify the role of internal feedbacks as controls on alluvial fan evolution. The experimental approach follows the "similarity of processes" concept and is therefore not scaled to a specific real-world prototype but instead the physical model was considered a small system in its own right. The experiments were carried out in a 3x3 metre plot with controlled sediment and water supply, boundary conditions restricted the available accommodation space; the apex angle was confined to 90° and a drainage channel limited fan growth to stimulate truncation by, for instance, axial river systems.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.501221  DOI: Not available
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