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Journal Article

Stream laws in analog tectonic-landscape models

Authors

Reitano,  Riccardo
External Organizations;

Clementucci,  Romano
External Organizations;

Conrad,  Ethan M.
External Organizations;

Corbi,  Fabio
External Organizations;

Lanari,  Riccardo
External Organizations;

/persons/resource/claudio

Faccenna,  Claudio
4.1 Lithosphere Dynamics, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Bazzucchi,  Chiara
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5022296.pdf
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Citation

Reitano, R., Clementucci, R., Conrad, E. M., Corbi, F., Lanari, R., Faccenna, C., Bazzucchi, C. (2023): Stream laws in analog tectonic-landscape models. - Earth Surface Dynamics, 11, 4, 731-740.
https://doi.org/10.5194/esurf-11-731-2023


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5022296
Abstract
The interplay between tectonics and surface processes defines the evolution of mountain belts. However, correlating these processes through the evolution of natural orogens represents a scientific challenge. Analog models can be used for analyzing and interpreting the effect of such interaction. To fulfill this purpose it is necessary to understand how the imposed boundary conditions affect analog models' evolution in time and space. We use nine analog models characterized by different combinations of imposed regional slope and rainfall rates to investigate how surface processes respond to the presence of tectonically built topography (imposed slope) under different climatic conditions (rainfall rate). We show how the combination of these parameters controls the development of drainage networks and erosional processes. We quantify the morphological differences between experimental landscapes in terms of a proposed ratio, accounting for both observables and boundary conditions. We find few differences between analog models and natural prototypes in terms of parametrization of the detachment-limited stream power law. We observe a threshold in the development of channelization, modulated by a tradeoff between applied boundary conditions.