Interactions between Surface Processes, Tectonics and Mantle Dynamics in the Evolution of Topography
A special issue of Geosciences (ISSN 2076-3263).
Deadline for manuscript submissions: closed (30 September 2019) | Viewed by 9481
Special Issue Editor
Special Issue Information
Dear Colleagues,
Topography is the integrated result of processes that operate from the depths of the Earth up to its surface, at different time and at different spatial scales. Its "life cycle" starts with tectonics that generate topographic contrasts and set up the boundary conditions for geomorphological processes. Ruled by climate, these latter respond to the tectonic input redistributing rocks via erosion, transport, and sedimentation. These processes load and unload the underlying crust and mantle lithosphere, becoming a forcing factor of tectonics.
In different geodynamic contests, in addition to crustal and subcrustal processes, density variations in the mantle produce flows that generate the so-called dynamic topography. Downward, convergent flows induce the formation of a surface depression (negative dynamic topography), while an upward, divergent flow a positive dynamic topography. The wavelength and height of this peculiar topographic signal is proportional to the intensity, depth and scale of the flow.
In synthesis, to investigate the generation and the evolution of the Earth's topography, and to discern/quantify the different components that contribute to its geometry, is a task that needs many expertises: Geomorphology and Quaternary Geology, Structural Geology, Geophysics, Analogue and Numerical Modeling of processes.
Therefore, I would like to invite you to submit papers about your recent work on topography from local to regional scales, as a result of the interaction of exogenic and endogenic processes, acting from the surface down to the mantle. This Special Issue is an opportunity to combine different approaches in the research of topography generation and evolution.
Prof. Paola Molin
Guest Editor
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Keywords
- topography
- geomorphology
- surface processes
- tectonics
- crustal and subcrustal processes
- mantle flows and dynamic topography
- geophysics
- analogue and numerical modeling
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