High elevation of low-relief surfaces in mountain belts: does it equate to post-orogenic surface uplift?
Article first published online: 21 JUL 2007
Volume 19, Issue 4, pages 272–277, August 2007
How to Cite
Babault, J., Bonnet, S., Driessche, J. V. D. and Crave, A. (2007), High elevation of low-relief surfaces in mountain belts: does it equate to post-orogenic surface uplift?. Terra Nova, 19: 272–277. doi: 10.1111/j.1365-3121.2007.00746.x
- Issue published online: 21 JUL 2007
- Article first published online: 21 JUL 2007
- Received 1 June 2006; revised version accepted 25 May 2007
Figure S1 Drawing of the experimental apparatus that shows the erosion box filled by silica paste and the moveable bottom used to simulate uplift. The erosion box is located within a rainfall simulator where four sprinklers deliver a high-pressure water-air mixture. Figure S2 Detailed picture of the erosion box at the end of an experiment. The uplifted landscape is surrounded by a piedmont that formed by the aggradation of the products of erosion. Lower left corner: detailed picture of a sprinkler. Figure S3 Perturbation of a Steady State topography by piedmont deposition. Photos of the experiment and evolution of its: mean elevation (<h>), mean fan apex elevation (<h>f), mean denudation (D), relative uplift rate (Ur) and uplift rate (U). The piedmont sedimentation that starts to surround the uplifted topography (photo and point ?D?) induces the onset of the mean elevation growth and then the disruption of the previous macroscale equilibrium. At the local scale, the inhibition of erosion goes with a modification of the local relief. A smoothing of the upraising topography starts downstream and it propagates upwards. Figure S4 Perturbation of a Steady State topography by piedmont deposition. DEMs movie of the experiment and evolution of its: mean elevation (<h>; blue squares), mean fan apex elevation (<h>f; yellow circles), mean denudation (D; green triangles), relative uplift rate (Ur; red circles) and uplift rate (U).
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